Alabama LVT key terms

The study of how a drug moves through the body over time, covering absorption into the bloodstream, distribution to tissues, metabolism (mostly by the liver), and excretion (mostly by the kidneys). It explains how dosing routes and intervals are chosen.

The time required for the concentration of a drug in the body to decrease by half. It guides how often a medication should be given and how long a withdrawal period or drug effect may last.

The fraction of an administered drug dose that actually reaches the systemic circulation in an active form. Intravenous drugs are essentially 100 percent bioavailable; oral drugs are reduced by incomplete absorption and liver metabolism.

The loss of an orally administered drug as it passes through the liver before reaching the rest of the body. It is why some drugs must be given by injection or at higher oral doses to be effective.

A ratio comparing the dose of a drug that produces toxic effects with the dose that produces the desired effect. A narrow index means small dosing errors can cause harm, so those drugs require careful monitoring.

Any harmful or unintended response to a medication given at a normal dose, ranging from mild vomiting to organ damage or death. Suspected reactions should be documented and reported to the veterinarian and, where required, to the manufacturer or FDA.

The legally required interval after giving a drug to a food-producing animal before its meat, milk, or eggs may be sold for human consumption. Extra-label use often lengthens this period and must be directed by a veterinarian.

Using an approved animal or human drug in a way not described on its label, such as a different dose, species, or route. In the United States it requires a valid veterinarian-client-patient relationship and careful record keeping, with stricter limits in food animals.

The professional relationship in which a veterinarian has examined the animal, knows the client, and is available for follow-up care. It is a legal prerequisite for prescribing medication, dispensing drugs, and providing most veterinary services.

A drug regulated by federal and state law because of its potential for abuse or dependence, such as opioids, benzodiazepines, and ketamine. Handling requires secure storage, accurate inventory logs, and restricted prescribing and record-keeping rules.

The federal license a veterinarian and practice must hold to handle controlled substances. Technicians must work under that registration, maintain logs, and follow security and inventory requirements to stay compliant.

The client's voluntary agreement to a procedure or treatment after being told the purpose, benefits, risks, alternatives, and costs in understandable language. Documenting the discussion and the client's decision protects both the patient and the practice.

The set of duties a credentialed veterinary technician may legally perform under supervision, defined by state law and veterinary board rules. Tasks such as diagnosis, prognosis, and surgery belong to the veterinarian.

The legal, permanent documentation of a patient's care, including history, exam findings, treatments, anesthesia events, and client communication. It must be accurate, timely, legible, and retained for the period required by state law.

The required documentation for each dispensed or prescribed drug, including patient and client identity, drug name, strength, quantity, directions, date, and prescriber. Controlled substances also require running inventory counts.

Practices that keep instruments, supplies, and the surgical field free of microorganisms, such as sterile gowns and gloves, sterile drapes, and careful handling of sterile items. It is the foundation of preventing surgical site infection.

The area of a draped patient and any sterile supplies considered free of microorganisms, which may only be touched by sterile personnel or sterile instruments. Items contacting the floor or unsterile surfaces become contaminated and must be replaced.

An infection that develops in or near a surgical incision, causing redness, swelling, discharge, pain, or fever. Prevention relies on proper skin preparation, sterile technique, appropriate clipping, and minimizing tissue trauma and surgical time.

The ongoing assessment of a patient under anesthesia using parameters such as heart rate, respiratory rate, blood pressure, mucous membrane color, temperature, and depth of anesthesia. Findings are recorded and reported so the veterinarian can adjust drugs promptly.

Measurement of carbon dioxide in exhaled breath to assess ventilation and confirm correct placement of an endotracheal tube. A normal waveform and end-tidal value indicate effective breathing and a patent airway.

A noninvasive method of estimating the percentage of hemoglobin saturated with oxygen using a sensor on the tongue, ear, or toe. It helps detect hypoxemia during anesthesia and in critically ill patients.

The stage of central nervous system depression produced by anesthetic drugs, judged by reflexes, muscle tone, eye position, and response to stimulation. Too light causes awareness and pain; too deep causes dangerous cardiovascular and respiratory depression.

Placement of a tube through the mouth and larynx into the trachea to deliver oxygen and anesthetic gas and to protect the airway. Correct placement is confirmed by observing chest movement and using capnography.

Placing and supporting an anesthetized patient to keep the airway open, protect nerves and muscles, and allow the surgical approach. Padding, proper limb alignment, and avoiding pressure on the dependent eye reduce complications.

An abnormally low level of oxygen in arterial blood, often signaled by low pulse oximetry readings, blue mucous membranes, or dark blood. It requires prompt action such as checking the airway and providing supplemental oxygen.

Professional cleaning of the teeth above and below the gumline, including scaling, polishing, and charting, performed under anesthesia. It removes plaque and calculus that cause periodontal disease and is not the same as a cosmetic brushing.

Inflammation and destruction of the tissues supporting the teeth, caused by plaque bacteria, leading to gingivitis, bone loss, and eventual tooth loss. It is the most common dental problem in dogs and cats and affects overall health.

A systematic written and graphic record of each tooth's condition, including probing depths, gingival recession, mobility, fractures, and missing teeth. It documents findings before and after treatment and guides follow-up care.

Intraoral X-rays used to evaluate tooth roots, bone loss, retained roots, and lesions hidden below the gumline. Full-mouth images are recommended during dental procedures because much disease cannot be seen on visual exam alone.

A laboratory test measuring red blood cells, white blood cells, platelets, and related values such as hemoglobin and hematocrit. It helps identify anemia, infection, inflammation, and bleeding disorders.

The percentage of blood volume occupied by red blood cells after a sample is spun in a centrifuge. It is a quick measure of anemia or dehydration and is often read alongside plasma color and total protein.

A group of tests measuring substances such as glucose, kidney values, liver enzymes, electrolytes, and proteins in serum or plasma. Results help screen for organ disease, monitor treatment, and guide anesthesia decisions.

Microscopic examination of cells collected by swabs, fine-needle aspiration, or impression smears to evaluate inflammation, infection, or tumors. It is relatively quick and minimally invasive but often needs confirmation by biopsy.

Using a thin needle and syringe to collect cells or fluid from a mass or organ for cytologic examination. It is minimally invasive and useful for distinguishing inflammation from neoplasia, though results can be inconclusive.

Examination of tissue removed by biopsy or surgery under a microscope to diagnose disease and determine tumor type and margins. It provides more structural detail than cytology and often guides prognosis and further treatment.

Arranging the patient and X-ray beam to produce accurate, well-labeled images without unnecessary repeat exposures. Standard views, correct measurement, and restraint or sedation as needed improve diagnostic quality and safety.

A substance given by mouth, rectally, or intravenously to make hollow structures such as the gastrointestinal tract or urinary bladder visible on X-rays. It is used to identify blockages, leaks, and abnormal anatomy.

Practices that limit exposure to ionizing radiation, including shielding, distance, collimation, dosimetry badges, and proper restraint technique. Personnel should never hold a patient in the primary beam or make unnecessary exposures.

Use of high-frequency sound waves to create real-time images of soft tissues and fluid, useful for pregnancy checks, abdominal organ evaluation, and guiding needle sampling. It complements but does not replace radiography.

The rapid sorting of patients by the urgency of their condition so that life-threatening problems are treated first. It is based on airway, breathing, circulation, and other vital signs rather than on arrival order.

A life-threatening state in which inadequate tissue perfusion delivers too little oxygen and nutrients to cells. Signs include pale or muddy mucous membranes, rapid weak pulses, cold extremities, and altered mentation, requiring immediate fluid and supportive care.

The core measurements of a patient's condition: temperature, pulse rate and quality, respiratory rate and effort, and mucous membrane color. They establish a baseline and reveal trends that signal improvement or deterioration.

A standardized rating of an animal's fat cover, usually on a five- or nine-point scale based on palpation of ribs, spine, and waist. It guides nutritional counseling and helps detect obesity or unintended weight loss.

Evaluation of an animal's diet, body condition, weight trend, and life stage to identify deficiencies or excesses. It supports feeding plans for health maintenance and for managing diseases such as kidney or heart disease.

Low-stress techniques that reduce fear and anxiety during restraint, such as gentle handling, pheromones, treats, towels, and minimal force. They improve safety for staff and patients and produce more reliable exam findings.

The physical or chemical means used to keep an animal still and safe during examination or procedures. The least restrictive effective method should be chosen, with attention to the animal's comfort and the handler's safety.

A structured training approach that changes an animal's response to triggers through desensitization, counterconditioning, and reinforcement. It is used for fear, anxiety, and aggression and is often combined with environmental management and veterinary guidance.

The study of bones, including their structure, growth, and function in support, protection, and mineral storage. Understanding normal skeletal anatomy helps technicians recognize fractures and interpret radiographs.

Describing a broken bone by its location, pattern (such as simple, comminuted, or greenstick), and whether it is open or closed. Classification guides treatment choices and helps predict healing.

The body's ability to maintain stable internal conditions such as temperature, pH, and blood glucose despite outside changes. Many diseases and emergency treatments are understood in terms of restoring or supporting homeostasis.

Clear, respectful exchange of information with animal owners about diagnosis, treatment options, costs, and home care. Good communication improves compliance, reduces misunderstandings, and supports informed consent and trust.

A laboratory technique that separates parasite eggs and cysts from fecal debris using a solution of specific gravity so they float for microscopic detection. It is a routine screen for intestinal parasites in dogs, cats, and livestock.

A disease that can be transmitted from animals to people, such as rabies, ringworm, and salmonellosis. Technicians should practice hygiene, use personal protective equipment, and educate clients about prevention.

Barriers such as gloves, gowns, masks, and eye protection worn to prevent contact with infectious or hazardous materials. Correct use protects staff and clients and is a core part of infection control.

Computing the correct dose and volume of a drug for a critically ill patient, often from a known concentration and body weight, under time pressure. Double-checking calculations and units prevents dangerous medication errors.