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ABPM Aerospace Medicine study materials
ABPM Aerospace Medicine study resources

ABPM Aerospace Medicine practice questions

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Question 1Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

Under FAA rules, what is the maximum duration of a third-class medical certificate for a 32-year-old pilot?

  1. 12 months
  2. 36 months
  3. 6 months
  4. 24 months Correct answer.

Explanation

Third-class medical certificates are valid for 24 calendar months for pilots who have not reached age 40. At age 40 and older, the third-class certificate is valid for 12 months.

Question 2Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

For a third-class FAA medical certificate, distant visual acuity must be at least:

  1. 20/30 in each eye
  2. 20/20 in each eye
  3. 20/50 in each eye
  4. 20/40 in each eye Correct answer.

Explanation

Third-class certification requires distant visual acuity of at least 20/40 in each eye separately, with or without correction. Near vision must also meet the standard, and failure may require further evaluation.

Question 3Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

Which condition generally requires special issuance rather than routine AME certification?

  1. Mild intermittent asthma
  2. Well-controlled hypothyroidism
  3. Seasonal allergic rhinitis
  4. Bipolar disorder Correct answer.

Explanation

Bipolar disorder is a disqualifying psychiatric condition because of the risk of mood instability and impaired judgment. Seasonal rhinitis, hypothyroidism, and mild asthma are usually certifiable when stable.

Question 4Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A history of epilepsy treated with anticonvulsant medication is generally:

  1. Certifiable with a driver's license
  2. Generally disqualifying Correct answer.
  3. Requires only a neurology note
  4. Certifiable after one seizure-free year

Explanation

A history of epilepsy is disqualifying under FAA medical standards because of the risk of sudden incapacitation. Certification would require an extremely unusual special issuance and is generally not granted.

Question 5Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

An uncomplicated pregnancy in a pilot is generally:

  1. Disqualifying for all classes
  2. Certifiable only after delivery
  3. Always disqualifying after 12 weeks
  4. Generally not disqualifying Correct answer.

Explanation

Uncomplicated pregnancy is not an automatic disqualifier, but the AME must assess for complications, medications, and fitness to fly. Later pregnancy may require additional restrictions based on the clinical situation.

Question 6Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot with hypothyroidism stabilized on levothyroxine and a normal TSH is usually:

  1. Requires special issuance annually
  2. Eligible for routine certification Correct answer.
  3. Disqualified until off medication
  4. Restricted to class 3 only

Explanation

Hypothyroidism that is stable on replacement therapy with a normal TSH is generally compatible with certification. Unstable disease or persistent symptoms may require deferral.

Question 7Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

Mild asthma controlled with as-needed albuterol and no recent exacerbations is usually:

  1. Disqualifying
  2. Acceptable for certification Correct answer.
  3. Requires special issuance
  4. Certifiable only for class 3

Explanation

Mild asthma controlled with a rescue inhaler and no recent systemic steroids or hospitalizations is usually acceptable. More severe or unstable asthma requires further review.

Question 8Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

FAA regulations require a pilot to allow at least how long between alcohol consumption and flying?

  1. 12 hours
  2. 8 hours Correct answer.
  3. 6 hours
  4. 4 hours

Explanation

The FAA rule prohibits flying within 8 hours after consuming alcohol and while under the influence or with a BAC of 0.04% or higher. The 8-hour rule is a minimum, not a guarantee of fitness.

Question 9Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

What blood pressure level is generally the upper limit for FAA certification without special issuance?

  1. 155/95 mmHg Correct answer.
  2. 160/100 mmHg
  3. 150/95 mmHg
  4. 140/90 mmHg

Explanation

FAA aeromedical guidance uses 155/95 mmHg as the threshold above which further evaluation is needed. Persistent higher readings may require treatment and special issuance.

Question 10Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot with well-controlled type 2 diabetes on metformin, without complications, generally:

  1. Requires insulin waiver
  2. Is disqualified
  3. Usually certifiable Correct answer.
  4. Must stop flying

Explanation

Type 2 diabetes managed with oral agents or diet is generally certifiable if control is good and there are no complications. Insulin-treated diabetes requires special issuance.

Question 11Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot with obstructive sleep apnea treated with CPAP and no daytime sleepiness generally requires:

  1. No evaluation
  2. Special issuance Correct answer.
  3. Permanent disqualification
  4. Only a dental appliance

Explanation

OSA treated with CPAP can be certified through special issuance when compliance and symptom control are documented. Untreated or symptomatic OSA is disqualifying because of daytime sleepiness risk.

Question 12Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

Which over-the-counter antihistamine is generally least likely to interfere with pilot duties?

  1. Diphenhydramine
  2. Promethazine
  3. Chlorpheniramine
  4. Loratadine Correct answer.

Explanation

Loratadine is a second-generation antihistamine with minimal sedation and is generally acceptable. First-generation agents such as diphenhydramine and promethazine commonly cause drowsiness.

Question 13Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A single episode of unexplained syncope in a pilot generally requires:

  1. No action if brief
  2. Full evaluation Correct answer.
  3. Automatic denial
  4. Only a blood pressure check

Explanation

Unexplained syncope requires a thorough evaluation to identify cardiac, neurologic, or other causes. Certification depends on the diagnosis and risk of recurrence.

Question 14Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot with basal cell carcinoma treated by complete excision and no recurrence is usually:

  1. Requires chemotherapy waiver
  2. Eligible for certification Correct answer.
  3. Restricted to class 3
  4. Permanently disqualified

Explanation

Basal cell carcinoma is locally invasive but rarely metastasizes, and complete excision is usually curative. Certification is typically possible once treatment is complete and recurrence is absent.

Question 15Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot taking a stimulant medication for ADHD is generally:

  1. Certifiable if dose is low
  2. Disqualified Correct answer.
  3. Eligible after 1 month
  4. Allowed for class 3 only

Explanation

Stimulant medications for ADHD are disqualifying while used because of effects on judgment, sleep, and cardiovascular function. Certification may be possible after a medication-free interval and stable functioning.

Question 16Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

Implantation of a permanent pacemaker in a pilot generally requires:

  1. A 30-day waiting period
  2. Only an ECG
  3. No special action
  4. Special issuance review Correct answer.

Explanation

Permanent pacemakers require special issuance because of the underlying rhythm disorder and device dependency risk. Review includes device function, battery status, and arrhythmia history.

Question 17Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

Which item is required for a pilot to operate under BasicMed?

  1. An instrument rating
  2. A commercial pilot certificate
  3. A first-class medical certificate
  4. A valid driver's license Correct answer.

Explanation

BasicMed allows eligible pilots to fly under a driver's license and a physician's examination rather than a FAA medical certificate. It carries aircraft and operational limits.

Question 18Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot with a single uncomplicated kidney stone that has passed and no residual stone is usually:

  1. Required to have surgery
  2. Usually certifiable Correct answer.
  3. Restricted to class 3
  4. Permanently disqualified

Explanation

A single passed stone without residual obstruction is usually compatible with certification after documentation. Retained or recurrent stones may require additional evaluation.

Question 19Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot who fails initial color vision testing for a first-class medical certificate may:

  1. Alternate color vision testing Correct answer.
  2. Obtain a class 3 only
  3. Fly only at night
  4. Ignore the result

Explanation

FAA allows alternate color vision tests such as the Farnsworth Lantern when the initial test is failed. The results determine whether a limitation is needed.

Question 20Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

For a pilot age 40 or older, a first-class medical certificate is generally valid for:

  1. 12 months
  2. 3 months
  3. 24 months
  4. 6 months Correct answer.

Explanation

First-class medical certificates are valid for 6 calendar months for pilots age 40 or older. Under age 40, the first-class certificate is valid for 12 months.

Question 21Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot with a mechanical heart valve taking warfarin is generally:

  1. Permanent disqualification
  2. Class 3 certification only
  3. Special issuance review Correct answer.
  4. Routine certification

Explanation

Mechanical heart valves require anticoagulation and carry risks of bleeding and thrombosis. Certification is possible only through special issuance with cardiology documentation.

Question 22Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot with HIV infection and stable immune function on therapy generally:

  1. Must surrender certificate
  2. Automatically disqualified
  3. Special issuance review Correct answer.
  4. Can fly only as student

Explanation

HIV infection is not automatically disqualifying, and stable patients on effective therapy may be considered for special issuance. Review focuses on immune status, medications, and complications.

Question 23Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

After a concussion with brief loss of consciousness, a pilot should generally:

  1. Resume flying when headache resolves
  2. Evaluation before return to flying Correct answer.
  3. Self-certify after 24 hours
  4. Only avoid night flying

Explanation

Concussion with loss of consciousness can affect cognition, balance, and reaction time. A pilot should be evaluated and cleared before returning to flying.

Question 24Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A diagnosis of alcohol dependence in a pilot generally requires:

  1. Only a letter from employer
  2. Class 3 certificate only
  3. Special issuance review Correct answer.
  4. No action if abstinent 1 month

Explanation

Alcohol dependence is a disqualifying condition that requires special issuance after documented recovery and monitoring. A short period of abstinence alone is not sufficient.

Question 25Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot with atrial fibrillation treated with warfarin generally requires:

  1. Permanent disqualification
  2. No monitoring if INR stable
  3. Special issuance review Correct answer.
  4. Routine certification

Explanation

Atrial fibrillation on warfarin requires special issuance because of arrhythmia and bleeding risk. Monitoring of INR and rhythm control is part of the review.

Question 26Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

For a first-class FAA medical certificate, distant visual acuity must be at least:

  1. 20/30 in each eye separately, with or without correction
  2. 20/20 in each eye separately, with or without correction Correct answer.
  3. 20/50 in each eye separately, with or without correction
  4. 20/40 in each eye separately, with or without correction

Explanation

First-class standards require distant visual acuity of 20/20 or better in each eye separately, with or without corrective lenses. Near vision must also meet the standard.

Question 27Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

The FAA hearing standard for a first-class medical certificate is the ability to hear conversational voice at what distance in each ear separately, with the back turned?

  1. 20 feet
  2. 10 feet
  3. 6 feet Correct answer.
  4. 15 feet

Explanation

The FAA standard is the ability to hear conversational voice at 6 feet in each ear separately, with the examiner behind the pilot. A hearing aid may be used to meet the standard.

Question 28Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot who uses marijuana for recreational purposes should expect that FAA certification will be:

  1. Granted after a 24-hour waiting period
  2. Granted if use is limited to weekends
  3. Denied or deferred as disqualifying Correct answer.
  4. Granted if a state law permits it

Explanation

Marijuana use is disqualifying under FAA rules regardless of state legalization. Certification cannot be issued while such use is ongoing.

Question 29Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot with a confirmed diagnosis of narcolepsy generally:

  1. May fly after a 6-month observation period
  2. Is not eligible for routine certification Correct answer.
  3. May fly if symptoms are controlled by caffeine
  4. May fly only under BasicMed

Explanation

Narcolepsy is disqualifying because sleep attacks can occur unpredictably and cause sudden incapacitation. Routine certification is not available for this diagnosis.

Question 30Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

For a pilot who is under age 40, a third-class FAA medical certificate is generally valid for:

  1. 36 months
  2. 60 months Correct answer.
  3. 24 months
  4. 12 months

Explanation

Third-class medical certificate validity is 60 months for pilots under age 40. For pilots age 40 and older, third-class validity is 24 months.

Question 31Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A second-class FAA medical certificate is generally valid for how long for a pilot of any age?

  1. 60 months
  2. 6 months
  3. 24 months
  4. 12 months Correct answer.

Explanation

Second-class medical certificates are valid for 12 months regardless of the pilot's age. The age-based differences apply mainly to first- and third-class certificates.

Question 32Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot who has an implantable cardioverter-defibrillator (ICD) in place generally:

  1. May fly after 3 months of stable rhythm
  2. May fly if the device has never discharged
  3. May fly only as a private pilot
  4. Is not eligible for routine certification Correct answer.

Explanation

An ICD is generally disqualifying because of the risk of sudden incapacitation and device-related complications. Certification is not routine even if the device has not discharged.

Question 33Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

Which medication is among those that may be considered under the FAA special issuance program for depression?

  1. Sertraline Correct answer.
  2. Diazepam
  3. Lithium
  4. Amitriptyline

Explanation

The FAA special issuance program for depression includes certain SSRIs, such as sertraline, fluoxetine, citalopram, and escitalopram. Other antidepressants and mood stabilizers are handled differently or are disqualifying.

Question 34Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot with insulin-treated diabetes mellitus generally:

  1. Requires special issuance before flying Correct answer.
  2. May fly only if the HbA1c is below 6%
  3. Is permanently disqualified
  4. May be certified without any special review

Explanation

Insulin-treated diabetes requires special issuance with endocrine evaluation and ongoing monitoring. It is not certified through routine processing.

Question 35Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot with a history of epilepsy generally:

  1. May fly only with a safety pilot
  2. May fly if on a single medication
  3. May fly if seizure-free for 1 year
  4. Requires special issuance review Correct answer.

Explanation

Epilepsy is disqualifying, and special issuance may be considered only after a long seizure-free interval off medication and complete evaluation. A safety pilot does not substitute for certification.

Question 36Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot with bipolar disorder generally:

  1. May fly if mood is stable on lithium
  2. Is not routinely certifiable Correct answer.
  3. May fly after 2 years of stability
  4. May fly only under BasicMed

Explanation

Bipolar disorder is disqualifying because of the risk of mood instability and the effects of required medications. Routine certification is not available.

Question 37Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

After uncomplicated LASIK, a pilot generally may be considered for FAA certification when:

  1. A special issuance is always required
  2. Vision is stable without complications Correct answer.
  3. The day after surgery if vision is 20/20
  4. At least 5 years have passed

Explanation

After LASIK, certification may be considered once refractive stability is documented and no complications are present. The FAA may require supporting eye evaluation.

Question 38Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot with monocular vision, meaning only one eye has useful vision, generally:

  1. May be considered for special issuance Correct answer.
  2. Is automatically disqualified with no review
  3. May fly only as a student pilot
  4. May fly if the good eye is 20/20

Explanation

Monocular vision is not automatically disqualifying but requires special issuance review, including assessment of adaptation and visual fields. Good acuity in the remaining eye alone is not sufficient.

Question 39Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

For FAA medical certification, an uncomplicated pregnancy in a pilot generally:

  1. May continue if fit and monitored Correct answer.
  2. Is disqualifying after the first trimester
  3. Permits flying only until 20 weeks
  4. Requires special issuance in all cases

Explanation

Uncomplicated pregnancy is not itself disqualifying, and the pilot may remain certified if she remains fit and receives appropriate obstetric care. Complications or medication changes may alter the assessment.

Question 40Clinical Aerospace Medicine (aeromedical certification, patient care, fitness for duty)

A pilot with symptomatic heart failure generally:

  1. May fly if ejection fraction is above 40%
  2. May fly only as a private pilot
  3. May fly after 1 month of stable medications
  4. Is not eligible for routine certification Correct answer.

Explanation

Symptomatic heart failure is generally disqualifying because of the risk of incapacitation. Certification would require extensive special review and is not routine.

Question 41Aerospace Physiology (flight and space environments, accelerations, pressure, oxygenation)

After a rapid decompression to 40,000 ft, approximately how long is the time of useful consciousness?

  1. 15 to 20 seconds Correct answer.
  2. 45 to 60 seconds
  3. 1 to 2 minutes
  4. 3 to 5 minutes

Explanation

Time of useful consciousness is the interval between loss of adequate oxygen and loss of the ability to take protective action. At 40,000 ft this window is only about 15 to 20 seconds, and it shortens further with cold, exertion, or poor physical fitness. Immediate use of oxygen is therefore essential.

Question 42Aerospace Physiology (flight and space environments, accelerations, pressure, oxygenation)

Hypoxia during ascent to high altitude develops primarily because

  1. the partial pressure of oxygen falls Correct answer.
  2. carbon dioxide displaces oxygen in the alveoli
  3. hemoglobin binds nitrogen instead of oxygen
  4. the percentage of oxygen in the air falls

Explanation

The fraction of oxygen in the atmosphere stays near 21 percent at all altitudes, so the composition of air does not change. What falls is barometric pressure, and with it the partial pressure of oxygen, which lowers alveolar and arterial oxygenation. This is hypoxic hypoxia.

Question 43Aerospace Physiology (flight and space environments, accelerations, pressure, oxygenation)

According to Dalton's law, the total pressure of a gas mixture is equal to

  1. the average of the partial pressures
  2. the sum of the partial pressures Correct answer.
  3. the product of the partial pressures
  4. the partial pressure of the most abundant gas

Explanation

Dalton's law states that each gas in a mixture exerts its own partial pressure independently, and the total pressure is their sum. This rule allows calculation of alveolar oxygen partial pressure from inspired gas fractions and barometric pressure. It applies to air, oxygen mixtures, and inert gases in tissues.

Question 44Aerospace Physiology (flight and space environments, accelerations, pressure, oxygenation)

During ascent in an unpressurized aircraft, gas trapped in the middle ear or bowel tends to

  1. expand as ambient pressure falls Correct answer.
  2. remain at constant volume
  3. dissolve into the bloodstream
  4. contract in proportion to the pressure rise

Explanation

Boyle's law states that at constant temperature the volume of a gas is inversely proportional to pressure. As ambient pressure falls with altitude, trapped gas expands and must be vented, which is why ear and sinus equalization and abdominal discomfort occur on ascent. On descent the reverse happens and gas contracts, producing squeeze.

Question 45Aerospace Physiology (flight and space environments, accelerations, pressure, oxygenation)

While breathing air at sea level, alveolar oxygen partial pressure is approximately

  1. 75 mmHg
  2. 160 mmHg
  3. 40 mmHg
  4. 100 mmHg Correct answer.

Explanation

Alveolar oxygen partial pressure is about 100 mmHg at sea level, reflecting inspired oxygen diluted by water vapor and alveolar carbon dioxide. Arterial oxygen partial pressure is slightly lower, near 95 mmHg. Inspired air at the airway opening is about 150 mmHg.

Question 46Aerospace Physiology (flight and space environments, accelerations, pressure, oxygenation)

An anti-G suit used in high-performance aircraft inflates over the

  1. chest and shoulders
  2. arms and neck
  3. abdomen and legs Correct answer.
  4. feet and hands

Explanation

Anti-G suits inflate bladders over the abdomen and legs to compress capacitance vessels and reduce blood pooling below the heart during +Gz exposure. This helps maintain venous return and arterial pressure at head level. The chest is covered by the pressure garment or breathing system, not the G suit itself.

Question 47Aerospace Physiology (flight and space environments, accelerations, pressure, oxygenation)

Chronic exposure to high-intensity aircraft noise damages which structure of the inner ear?

  1. Blockage of the eustachian tube
  2. Damage to cochlear hair cells Correct answer.
  3. Fusion of the middle ear ossicles
  4. Stiffening of the tympanic membrane

Explanation

Noise-induced hearing loss results from destruction of sensory hair cells in the cochlea, which do not regenerate in humans. The loss typically begins at higher frequencies and may be permanent. Middle ear structures are not the primary site of noise injury.

Question 48Aerospace Physiology (flight and space environments, accelerations, pressure, oxygenation)

Redout of the visual field is most closely associated with which acceleration exposure?

  1. +Gx acceleration
  2. Lateral Gy acceleration
  3. +Gz acceleration
  4. -Gz acceleration Correct answer.

Explanation

Negative Gz raises arterial pressure at eye level, engorging retinal and conjunctival vessels and producing a red haze or redout. Positive Gz lowers eye-level pressure and instead causes greyout and blackout. The direction of the inertial force determines which visual symptom appears.

Question 49Aerospace Physiology (flight and space environments, accelerations, pressure, oxygenation)

Decompression sickness after exposure to reduced ambient pressure is caused by

  1. expansion of trapped gas in the intestine
  2. nitrogen bubble formation in tissues and blood Correct answer.
  3. accumulation of carbon dioxide in the lungs
  4. depletion of oxygen from the blood

Explanation

Henry's law holds that the amount of dissolved gas is proportional to its partial pressure. When ambient pressure falls rapidly, dissolved nitrogen becomes supersaturated and forms bubbles in tissues and blood, producing joint pain, respiratory symptoms, or neurologic signs. Oxygen and carbon dioxide are metabolically regulated and do not behave this way.

Question 50Aerospace Physiology (flight and space environments, accelerations, pressure, oxygenation)

The anti-G straining maneuver raises +Gz tolerance mainly by

  1. raising intrathoracic pressure and cerebral perfusion Correct answer.
  2. reducing resting heart rate and cardiac output
  3. increasing arterial oxygen content
  4. dilating peripheral arteries in the legs

Explanation

The maneuver combines sustained tensing of leg, abdominal, and gluteal muscles with cyclic breathing against a partially closed glottis. This raises intrathoracic and arterial pressure and pushes blood toward the head, preserving cerebral perfusion during +Gz. It does not change blood oxygen content.