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KMLTTB practice questions

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Question 1Medical Laboratory Sciences Practice and Professional Regulation

Under the Kenya Medical Laboratory Technicians and Technologists Act, which body is mandated to register and license medical laboratory professionals in Kenya?

  1. The Medical Practitioners and Dentists Council
  2. The Pharmacy and Poisons Board
  3. The Kenya Medical Laboratory Technicians and Technologists Board Correct answer.
  4. The Kenya Bureau of Standards

Explanation

The KMLTTB is the statutory regulator created to register, license, and discipline medical laboratory technicians and technologists in Kenya. Other councils regulate different professions or products and have no mandate over laboratory personnel registration.

Question 2Medical Laboratory Sciences Practice and Professional Regulation

A newly qualified technologist wants to practise independently in a Kenyan clinical laboratory. Which requirement is the most direct legal prerequisite?

  1. A letter of recommendation from a former lecturer
  2. Membership of a laboratory professional association
  3. A current practising licence issued by the KMLTTB Correct answer.
  4. A certificate of good conduct from the police

Explanation

Lawful practice requires registration and a valid annual practising licence from the KMLTTB; association membership and personal documents do not confer legal authority to practise. Employers must verify licensure before allowing independent bench work.

Question 3Medical Laboratory Sciences Practice and Professional Regulation

During a laboratory audit, a technologist is found performing tests outside the scope of the licence category held. What is the most appropriate regulatory classification of this conduct?

  1. Professional misconduct subject to Board disciplinary action Correct answer.
  2. An acceptable practice if supervised by a colleague
  3. A minor administrative error requiring only a verbal warning
  4. A matter solely for the employer's human resource office

Explanation

Practising beyond the licensed scope is a breach of the Act and its regulations, and is handled as professional misconduct by the Board. Employer action may follow, but it does not replace regulatory discipline.

Question 4Medical Laboratory Sciences Practice and Professional Regulation

Which quality document defines the laboratory's policy on how specimens are rejected and how corrective action is recorded?

  1. The equipment purchase inventory
  2. The standard operating procedure for specimen acceptance and rejection Correct answer.
  3. The staff training attendance register
  4. The laboratory safety data sheet file

Explanation

An SOP is the controlled document that specifies acceptance criteria, rejection grounds, and the corrective action pathway. Safety sheets, attendance registers, and inventories serve different quality functions and do not govern specimen handling decisions.

Question 5Medical Laboratory Sciences Practice and Professional Regulation

A laboratory receives a sputum sample in a plain container with no patient identifier. What is the most appropriate immediate action?

  1. Label the container using the request form details
  2. Store the sample until the patient returns
  3. Process the sample and add the identifier later
  4. Reject the sample and request a correctly labelled recollection Correct answer.

Explanation

Unlabelled or mislabelled specimens are rejected because patient identity cannot be verified, which is a fundamental patient-safety control. Relabelling by staff after receipt compromises traceability and is not permitted.

Question 6Medical Laboratory Sciences Practice and Professional Regulation

In quality management, which activity best demonstrates that a corrected nonconformity has been effective?

  1. Filing the incident report in the quality manual
  2. Informing the affected clinician verbally
  3. Verifying that the problem has not recurred over a defined monitoring period Correct answer.
  4. Recording the nonconformity in the register

Explanation

Effectiveness checks confirm that corrective action actually eliminated the root cause, typically by monitoring for recurrence. Documentation, notification, and filing are necessary steps but do not by themselves prove the fix worked.

Question 7Medical Laboratory Sciences Practice and Professional Regulation

Which internal quality control rule is violated when a single control result falls beyond three standard deviations from the mean?

  1. The 2-2s rule
  2. The 4-1s rule
  3. The 1-3s rule Correct answer.
  4. The R-4s rule

Explanation

The 1-3s rule flags a single control measurement exceeding three standard deviations, indicating a likely random or gross error. The other rules require two or more consecutive or paired observations before rejection.

Question 8Medical Laboratory Sciences Practice and Professional Regulation

A chemistry analyser produces control values consistently above the mean for one analyte across several runs. Which type of error does this pattern most suggest?

  1. Pre-analytical error
  2. Transcription error
  3. Random error
  4. Systematic error Correct answer.

Explanation

A persistent shift away from the mean indicates systematic error, often from calibration drift, reagent deterioration, or a change in control material. Random error produces scattered results rather than a consistent bias.

Question 9Medical Laboratory Sciences Practice and Professional Regulation

Which practice is most important for preventing needlestick injuries during phlebotomy?

  1. Carrying used needles to a central disposal point at the end of the shift
  2. Bending the needle before placing it in a bin
  3. Immediately placing the used needle in a puncture-resistant sharps container without recapping Correct answer.
  4. Recapping the needle using two hands before disposal

Explanation

Immediate disposal into a puncture-resistant sharps container without recapping is the core engineering and work-practice control against needlestick injury. Recapping, bending, and transporting open needles all increase exposure risk.

Question 10Medical Laboratory Sciences Practice and Professional Regulation

A technologist splashes blood into the eye while working at the bench. What is the correct first action?

  1. Continue working and report at the end of the day
  2. Wipe the eye with a dry paper towel
  3. Irrigate the eye at an eyewash station for at least 15 minutes Correct answer.
  4. Apply antibiotic eye drops from the first-aid kit

Explanation

Immediate flushing with water or saline at an eyewash station for at least 15 minutes is the recommended first response to ocular exposure. Reporting, source assessment, and post-exposure prophylaxis follow after irrigation begins.

Question 11Medical Laboratory Sciences Practice and Professional Regulation

Which waste stream should discarded blood-soaked gauze from a clinical laboratory enter?

  1. Chemical waste for neutralisation
  2. General municipal waste
  3. Infectious clinical waste for incineration or approved treatment Correct answer.
  4. Recyclable paper waste

Explanation

Blood-soaked materials are infectious clinical waste and must be segregated into the designated infectious stream for safe treatment. General, recyclable, and chemical streams are inappropriate and create exposure and environmental risks.

Question 12Medical Laboratory Sciences Practice and Professional Regulation

A laboratory reports a critical potassium result of 7.2 mmol/L. What is the most appropriate immediate action?

  1. Wait for the next routine ward round
  2. Repeat the test the following morning
  3. Notify the requesting clinician promptly and document the read-back Correct answer.
  4. File the result in the patient record without notification

Explanation

Critical values require timely notification to the responsible clinician with documented read-back to confirm receipt. Delaying or omitting notification risks serious harm and breaches quality requirements.

Question 13Medical Laboratory Sciences Practice and Professional Regulation

Which action best protects patient confidentiality when a relative telephones asking for a patient's HIV test result?

  1. Decline to disclose and refer the caller to the clinician with consent arrangements Correct answer.
  2. Read the result because the caller is a close relative
  3. Ask the caller to come to the laboratory for a printout
  4. Confirm only whether the test was done

Explanation

Results may be released only to authorised persons with appropriate consent and through agreed channels. Relatives have no automatic right to results, and even confirming that a test was performed can breach confidentiality.

Question 14Medical Laboratory Sciences Practice and Professional Regulation

Informed consent for a research study using stored patient samples is best obtained by which approach?

  1. Delegating consent to the ward cleaner
  2. Explaining the purpose, risks, and rights, then obtaining documented voluntary agreement Correct answer.
  3. Obtaining a signature without any explanation
  4. Assuming consent because samples were already collected

Explanation

Valid informed consent requires disclosure of purpose, risks, benefits, and the right to withdraw, followed by documented voluntary agreement. Bare signatures, presumed consent, and delegation to untrained staff fail ethical and regulatory standards.

Question 15Medical Laboratory Sciences Practice and Professional Regulation

Which statement best describes the role of an institutional ethics review committee for laboratory research?

  1. It manages the laboratory's reagent procurement
  2. It issues practising licences to technologists
  3. It performs the statistical analysis for investigators
  4. It independently reviews protocols to protect participants before the study begins Correct answer.

Explanation

Ethics committees provide independent review of study protocols to safeguard participants' rights and welfare before work starts. Procurement, statistics, and licensure fall outside their mandate.

Question 16Medical Laboratory Sciences Practice and Professional Regulation

A technologist suspects a colleague is repeatedly falsifying quality control records. What is the most appropriate professional response?

  1. Report the concern through the laboratory's established incident and whistleblowing channels Correct answer.
  2. Alter the records personally to correct them
  3. Confront the colleague publicly in front of patients
  4. Ignore the matter to preserve workplace harmony

Explanation

Falsified records endanger patients and must be reported through defined internal channels, which may escalate to the regulator. Public confrontation, silence, and personal alteration of records are all improper.

Question 17Medical Laboratory Sciences Practice and Professional Regulation

Which action constitutes a breach of professional boundaries in laboratory practice?

  1. Declining to process an inadequately labelled specimen
  2. Performing a test requested by a friend without a valid request form and recording it under another patient Correct answer.
  3. Referring a clinician's query to the senior technologist
  4. Wearing appropriate personal protective equipment at the bench

Explanation

Processing tests without proper requests and misattributing results to another patient is fraudulent and violates professional and legal duties. The other listed actions are correct professional behaviours.

Question 18Medical Laboratory Sciences Practice and Professional Regulation

Under continuing professional development requirements, which activity best demonstrates maintenance of competence?

  1. Documented participation in relevant accredited training with reflective learning records Correct answer.
  2. Collecting certificates unrelated to laboratory practice
  3. Attending social functions organised by the employer
  4. Reading a newspaper article about health once a year

Explanation

CPD should be relevant, documented, and reflected upon so that learning translates into improved practice. Unrelated certificates and incidental reading do not demonstrate maintained competence.

Question 19Medical Laboratory Sciences Practice and Professional Regulation

Which element is essential for a laboratory result to be defensible in a legal or clinical dispute?

  1. A handwritten note kept in a personal notebook
  2. An informal email summary sent after the shift
  3. A traceable record linking the specimen, method, operator, and result Correct answer.
  4. Verbal confirmation from the analyst

Explanation

Traceability through documented records allows reconstruction of what was done, by whom, and with which method. Personal notes, verbal statements, and informal emails lack the control and completeness required for defensibility.

Question 20Medical Laboratory Sciences Practice and Professional Regulation

A laboratory's documented procedure requires two identifiers on every request form. A senior clinician pressures staff to accept samples with a single identifier. What is the most defensible response?

  1. Accept the samples only during night shifts
  2. Follow the documented procedure and escalate the pressure through management channels Correct answer.
  3. Modify the procedure informally to allow one identifier
  4. Accept the samples because the clinician is senior

Explanation

Documented quality procedures exist for patient safety and must be followed regardless of the requester's seniority; pressure should be escalated rather than accommodated. Informal deviation undermines the quality system and is a regulatory risk.

Question 21Medical Laboratory Sciences Practice and Professional Regulation

Which circumstance most clearly requires reporting to the regulator rather than only internal handling?

  1. A staff member arriving late for a shift
  2. A minor clerical error corrected before result release
  3. A reagent lot failing verification and being quarantined
  4. A technologist practising with an expired licence and refusing to renew Correct answer.

Explanation

Practising without a valid licence is a statutory matter that must be reported to the KMLTTB. Internal quality events and routine personnel matters are managed through the laboratory's own systems.

Question 22Medical Laboratory Sciences Practice and Professional Regulation

Which of the following best describes the purpose of proficiency testing in a regulated laboratory?

  1. Verification of equipment purchase costs
  2. Independent assessment of result accuracy against peer laboratories Correct answer.
  3. Measurement of staff attendance and punctuality
  4. Determination of annual leave entitlements

Explanation

Proficiency testing uses blinded external samples to compare a laboratory's performance with peers, providing objective evidence of analytical accuracy. It is unrelated to attendance, procurement, or staffing administration.

Question 23Medical Laboratory Sciences Practice and Professional Regulation

A laboratory wants to introduce a new analyser. Which sequence best reflects sound verification practice before patient testing begins?

  1. Install and test only after the first complaint arises
  2. Install and rely on the manufacturer's brochure as sole evidence
  3. Install and begin patient testing immediately to save time
  4. Install, verify performance against defined acceptance criteria, document approval, then release for testing Correct answer.

Explanation

Method verification against predefined acceptance criteria, with documented authorisation, must precede patient testing. Immediate use, reactive testing, or reliance on marketing material fails quality and regulatory expectations.

Question 24Medical Laboratory Sciences Practice and Professional Regulation

Which is the most appropriate way to handle a laboratory staff member who has a weeping skin lesion on the hands?

  1. Restrict duties involving patient contact and specimen handling until assessed Correct answer.
  2. Instruct the person to work without gloves to avoid irritation
  3. Assign the person to phlebotomy to gain experience
  4. Allow normal bench work with gloves only

Explanation

Exudative skin lesions create both transmission and contamination risks, so duties should be restricted pending occupational health assessment. Gloves alone, reassignment to phlebotomy, or working bare-handed are unsafe.

Question 25Medical Laboratory Sciences Practice and Professional Regulation

Which practice best ensures correct patient identification before blood collection?

  1. Actively confirming identity using at least two identifiers and matching them to the request Correct answer.
  2. Asking the patient to state a bed number only
  3. Relying on the name written on the door
  4. Using the previous day's ward list

Explanation

Active confirmation with at least two independent identifiers matched to the request is the recognised standard for safe collection. Bed numbers, door labels, and outdated lists are unreliable and can lead to wrong-patient errors.

Question 26Medical Laboratory Sciences Practice and Professional Regulation

A laboratory technician without formal training in microbiology is asked to perform and report culture identification. Which regulatory principle applies most directly?

  1. Supervision by a colleague is sufficient regardless of documented competence
  2. Any registered laboratory staff member may report any test result once licensed
  3. Personnel may report results only for tests within their documented training and competence Correct answer.
  4. Reporting scope is determined by the number of years worked in the laboratory

Explanation

Laboratory regulation links the authority to perform and report a test to documented education, training, and demonstrated competence for that specific method. Holding a general licence does not authorise reporting outside one's verified scope. Records of competence assessment must exist to support this.

Question 27Medical Laboratory Sciences Practice and Professional Regulation

Which document in a regulated clinical laboratory formally defines who may authorise a result report and how amendments to a released report are made?

  1. The safety data sheet for each reagent
  2. The equipment maintenance logbook
  3. The staff annual leave roster
  4. The laboratory quality manual and associated authorised signatory policy Correct answer.

Explanation

Authorisation of reports and the procedure for amending released results are governance matters recorded in the quality manual and related policies. These documents define authorised signatories and the audit trail for corrections. Other records serve operational rather than authorisation purposes.

Question 28Medical Laboratory Sciences Practice and Professional Regulation

A laboratory receives a request to release a patient's results directly to an employer without the patient's consent. What is the most appropriate response?

  1. Release the results after removing the patient's name only
  2. Release the results because the employer paid for the testing
  3. Release only the abnormal results to limit disclosure
  4. Decline until valid patient authorisation or a lawful basis for disclosure is documented Correct answer.

Explanation

Disclosure of identifiable health information to a third party such as an employer requires patient authorisation or another documented lawful basis. Payment for testing does not transfer the right to the information. Partial disclosure or pseudonymisation does not remove the confidentiality obligation.

Question 29Medical Laboratory Sciences Practice and Professional Regulation

Which term describes the process by which an external body formally recognises that a laboratory meets defined standards for the tests it performs?

  1. Validation
  2. Calibration
  3. Certification of an individual technologist
  4. Accreditation Correct answer.

Explanation

Accreditation is the formal recognition of a laboratory's competence against published standards by an authoritative external body. It applies to the laboratory and its scope of testing. Calibration and validation are technical activities, and individual certification applies to a person.

Question 30Medical Laboratory Sciences Practice and Professional Regulation

A new reagent lot is introduced without comparison to the previous lot. Which regulatory requirement has most directly been compromised?

  1. Method verification before reporting patient results Correct answer.
  2. Waste segregation
  3. Staff immunisation status
  4. Fire safety inspection

Explanation

Regulatory standards require that changes affecting test performance, including new reagent lots, are verified before results are reported. Bridging or comparison studies confirm that performance remains acceptable. Skipping this step undermines the validity of subsequent patient results.

Question 31Medical Laboratory Sciences Practice and Professional Regulation

Which record best provides evidence that a analyser was functioning within acceptable limits on the day a disputed patient result was produced?

  1. The staff training attendance sheet
  2. The daily quality control and maintenance record for that analyser Correct answer.
  3. The laboratory's organisational chart
  4. The supplier's brochure for the analyser

Explanation

Daily quality control and maintenance records document the instrument's performance status at the time of testing. In a dispute these records support or challenge the reliability of the reported result. They form part of the result's audit trail.

Question 32Medical Laboratory Sciences Practice and Professional Regulation

A laboratory assistant is asked to sign out a report for a test they have never performed. What is the most appropriate action?

  1. Sign only if the result appears normal
  2. Sign and note that the result was not verified
  3. Sign the report as requested by the senior colleague
  4. Decline and refer the request to a competent authorised person Correct answer.

Explanation

Signing out results for tests outside one's verified competence misrepresents professional accountability. The correct response is to decline and route the report to someone with documented competence and authorisation. This protects patients and the integrity of the record.

Question 33Medical Laboratory Sciences Practice and Professional Regulation

Which body of law or regulation most directly governs the licensing of medical laboratory practitioners in a jurisdiction?

  1. The building safety code
  2. The national medical laboratory practitioners statute or regulation Correct answer.
  3. The commercial companies code
  4. The data protection act alone

Explanation

Licensing of laboratory practitioners is established by the specific statute or regulation for the profession. It defines registration, scope, and disciplinary processes. General commercial, building, or data laws do not create professional licensure.

Question 34Medical Laboratory Sciences Practice and Professional Regulation

A laboratory discovers that a result was released with the wrong patient's identifier attached. Which action sequence best reflects sound regulatory practice?

  1. Notify the clinician, document the incident, correct the record with an audit trail, and review the root cause Correct answer.
  2. Amend the record without noting the original entry
  3. Wait for the patient to complain before acting
  4. Delete the record quietly to avoid confusion

Explanation

A misidentified report is a significant incident requiring prompt clinical notification and a documented correction that preserves the original entry and audit trail. Root cause review prevents recurrence. Silent deletion or overwriting destroys the record's integrity.

Question 35Medical Laboratory Sciences Practice and Professional Regulation

A laboratory is preparing for an external assessment. Which activity best demonstrates ongoing monitoring of analytical quality between assessments?

  1. Updating the laboratory website annually
  2. Holding a staff social event each quarter
  3. Participating in external quality assessment schemes and reviewing trends Correct answer.
  4. Displaying the accreditation certificate in reception

Explanation

External quality assessment, together with trend review of results, provides objective evidence of ongoing analytical performance. Assessors look for a functioning quality system, not just a certificate. Publicity or social activities do not demonstrate analytical monitoring.

Question 36Medical Laboratory Sciences Practice and Professional Regulation

Which situation most clearly constitutes a conflict of interest requiring declaration in laboratory practice?

  1. A technologist attending a regional scientific meeting
  2. A senior scientist accepting personal payment from a supplier whose analyser they recommend for procurement Correct answer.
  3. A manager reviewing staff leave requests
  4. A trainee completing a rotation in another department

Explanation

A personal benefit from a supplier whose product the individual influences in procurement creates a clear conflict of interest. It must be declared and managed, often by removing the person from the decision. Ordinary professional or administrative activities do not create such conflicts.

Question 37Medical Laboratory Sciences Practice and Professional Regulation

A laboratory wishes to change its reference interval for a hormone assay. Which approach is most defensible under regulatory expectations?

  1. Use the interval from a neighbouring laboratory without any review
  2. Set the interval to whatever clinicians find convenient
  3. Establish or verify the interval using an appropriate local population and document the statistical basis Correct answer.
  4. Adopt the interval printed in the reagent insert without local verification

Explanation

Reference intervals must be appropriate for the population served and established or verified by a documented, statistically sound method. Adopting manufacturer or neighbouring intervals without verification may misclassify patients. Documentation supports the change during assessment.

Question 38Medical Laboratory Sciences Practice and Professional Regulation

A laboratory's procedure manual has not been reviewed for several years and references withdrawn standards. What is the most significant regulatory risk?

  1. Staff may need to work overtime
  2. Reagent costs may rise slightly
  3. The laboratory may need to purchase new furniture
  4. Practice may deviate from current requirements and be indefensible in an incident investigation Correct answer.

Explanation

Uncontrolled or outdated procedures mean staff may follow superseded requirements, producing nonconforming practice. In an incident investigation, reliance on a withdrawn standard weakens the laboratory's defence. Document control exists precisely to prevent this.

Question 39Medical Laboratory Sciences Practice and Professional Regulation

A patient requests a copy of their own laboratory report. Under most professional frameworks, what is the appropriate approach?

  1. Refuse because reports belong only to the laboratory
  2. Release it only if the result is normal
  3. Release it to a family member instead of the patient
  4. Release it through the established lawful process for patient access, with appropriate explanation Correct answer.

Explanation

Patients generally have a right of access to their own health information, exercised through the jurisdiction's defined process. The laboratory should facilitate this while ensuring results are explained appropriately. Blanket refusal or diversion to relatives is not acceptable.

Question 40Medical Laboratory Sciences Practice and Professional Regulation

Which action best demonstrates that a laboratory has implemented a functioning corrective and preventive action system?

  1. Tracking actions to closure with verification that the problem did not recur Correct answer.
  2. Recording only incidents that cause patient harm
  3. Filing incident reports without further review
  4. Assigning all incidents to a single person indefinitely

Explanation

A functioning corrective and preventive action system tracks each action through to completion and verifies effectiveness. Verification distinguishes genuine correction from paperwork. Filing without review or restricting reporting to harm cases defeats the system.

Question 41Medical Laboratory Sciences Practice and Professional Regulation

A technologist is asked to perform a test for which the laboratory holds no accreditation and no validated method. What is the most appropriate professional response?

  1. Send the sample to an unaccredited laboratory without disclosure
  2. Decline until a validated method and appropriate authorisation are in place Correct answer.
  3. Perform the test only for staff members
  4. Perform the test and report results with a verbal caveat

Explanation

Reporting results from an unvalidated method outside the authorised scope is not defensible. The laboratory should first establish a validated method and the necessary approvals. Verbal caveats or selective testing do not resolve the underlying deficiency.

Question 42Medical Laboratory Sciences Practice and Professional Regulation

Which element is most essential for a laboratory to demonstrate traceability of a measurement to international reference standards?

  1. An unbroken chain of calibrations with documented uncertainty Correct answer.
  2. A calendar of staff birthdays
  3. A record of stationery purchases
  4. A list of clinician complaints

Explanation

Metrological traceability requires an unbroken chain of calibrations, each contributing documented uncertainty, linking the result to a reference. This supports comparability of results across laboratories. Administrative records play no role in traceability.

Question 43Medical Laboratory Sciences Practice and Professional Regulation

A laboratory identifies that a supplier has changed the formulation of a reagent without notification. Which response best reflects regulatory diligence?

  1. Increase the reporting threshold for errors
  2. Continue use and monitor complaints
  3. Discard all records of previous lots
  4. Quarantine affected stock, assess impact on patient results, and document communication with the supplier Correct answer.

Explanation

An unannounced formulation change can alter analytical performance and requires quarantine and impact assessment, including review of results produced with affected lots. Documentation of supplier communication supports corrective action. Passive monitoring or record destruction is inadequate.

Question 44Medical Laboratory Sciences Practice and Professional Regulation

Which practice best demonstrates that a laboratory respects patient autonomy in the pre-analytical phase?

  1. Proceeding with collection whenever a clinician requests it
  2. Collecting samples from sleeping patients without waking them
  3. Confirming the patient's understanding and consent before an invasive collection Correct answer.
  4. Delegating consent discussions to untrained clerical staff

Explanation

Respecting autonomy requires that patients understand and agree to an invasive procedure before it occurs. Consent discussions should be conducted by adequately trained staff. Collecting without consent or delegating the discussion improperly undermines autonomy.

Question 45Medical Laboratory Sciences Practice and Professional Regulation

A laboratory receives a request from a law enforcement officer for a patient's results without a warrant or patient consent. What is the most appropriate initial action?

  1. Refuse permanently and without explanation
  2. Release the results immediately to assist the investigation
  3. Release only the patient's name and date of birth
  4. Refer the request through the laboratory's legal or authorised disclosure process before releasing anything Correct answer.

Explanation

Disclosure to law enforcement must follow the jurisdiction's legal process, which may require a warrant, court order, or statutory authority. The request should be routed to the designated authority for assessment. Immediate release or partial release without a lawful basis breaches confidentiality.

Question 46Medical Laboratory Sciences Practice and Professional Regulation

A laboratory director delegates quality management responsibilities to a senior technologist. Which arrangement best satisfies regulatory expectations?

  1. Verbal delegation remembered by the two individuals
  2. Delegation without any documented description of the role
  3. Delegation that excludes any oversight of quality records
  4. A documented delegation defining responsibilities, authority, and reporting lines Correct answer.

Explanation

Delegated responsibilities must be documented, including the authority attached and the reporting relationship. Documentation ensures accountability is visible to staff and assessors. Informal or undocumented delegation leaves gaps in the quality system.

Question 47Medical Laboratory Sciences Practice and Professional Regulation

During an assessment, an assessor asks how the laboratory ensures that only current versions of procedures are in use. Which control is most directly relevant?

  1. A verbal reminder at staff meetings
  2. A controlled document register with version numbers, issue dates, and withdrawal of superseded copies Correct answer.
  3. Storing procedures only on personal devices
  4. A colour-coded filing system with no version tracking

Explanation

A controlled document register records current versions, issue dates, and the withdrawal of superseded copies from all points of use. This provides objective evidence that staff work from current procedures. Colour coding without version control or verbal reminders is insufficient.

Question 48Medical Laboratory Sciences Practice and Professional Regulation

A laboratory reports a result that later proves to have been produced using an expired calibrator. Which combination of regulatory failures is most directly implicated?

  1. Website maintenance and marketing
  2. Waste segregation and fire safety
  3. Staff leave planning and payroll
  4. Reagent and material control and result validity Correct answer.

Explanation

Use of an expired calibrator breaches material control requirements and compromises the validity of results produced. Both the inventory control system and the release decision are implicated. The other pairs are unrelated to analytical validity.

Question 49Medical Laboratory Sciences Practice and Professional Regulation

A laboratory's quality indicators show a rising trend in rejected samples but no documented action. Which interpretation best reflects regulatory expectations?

  1. The trend should be hidden until it reverses
  2. Trend data are sufficient evidence of quality improvement
  3. Rejected samples should no longer be recorded
  4. Monitoring without analysis and action fails the intent of quality indicator review Correct answer.

Explanation

Quality indicators are meaningful only when trends are analysed and followed by documented action. Collecting data without response does not demonstrate improvement. Suppressing or discontinuing the indicator undermines the quality system.

Question 50Medical Laboratory Sciences Practice and Professional Regulation

A laboratory plans to offer a new molecular test. Which sequence best reflects regulatory expectations before routine reporting?

  1. Rely solely on the manufacturer's claims without local data
  2. Purchase the instrument and begin reporting the same week
  3. Report results immediately and validate retrospectively
  4. Define intended use, verify or validate performance, train staff, update documents, then report Correct answer.

Explanation

Introducing a new test requires a defined intended use, local verification or validation of performance, competent trained staff, and updated controlled documents before patient reporting. Retrospective validation exposes patients to unverified results. Manufacturer claims alone are insufficient evidence of local performance.