Flight Surgeon Module B Practice Test

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• Which of the following is a passive laser protective countermeasure?
• What is the primary preventive measure for DCS in unpressurized flights above 18,000 ft?
• Which finding is the hallmark of High Altitude Cerebral Edema?
• Which type of hypoxia is caused by reduction of PO2 in the lungs, resulting in inadequate oxygen delivery to arterial blood?
• In motion sickness, nausea and vomiting can be triggered via a pathway involving visceral afferents from the GI tract to which brain area?
• List the S/S of toxic fuel exposure?
• Which environmental factor is part of Degraded Visual Environment (DVE)?
• What is the difference between G and g in this context?
• Which condition is specifically described as a vibration-related disorder of the hands and arms?
• Sinus blocks most often occur during which phase of flight?
• Which SD type involves misperceptions related to size, distance, or aerial perspective?
• Which visual deficiency is characterized by unequal curvature causing glare?
• What is the threshold for ear drum rupture?
• Which lifestyle factor should be avoided to help prevent altitude illness?
• What frequently produces smoke in the cockpit?
• Which corrective measure is recommended if spatial disorientation is recognized in a two-pilot aircraft?
• What describes CNS involvement in DCS?
• Type 1 decompression sickness is predominantly characterized by which symptoms?
• Which illusion causes pilots to treat a sloping cloud deck as the horizon, leading to incorrect attitude?
• What type of hearing loss is associated with otosclerosis with fixed stapes footplate?
• Which of the following is a monocular depth cue?
• Low-magnitude acceleration is defined as G's that range from 1-10 G's and lasting for several seconds. True or False?
• Hyperventilation is defined as which of the following?
• Which of the following is a potential cause of hyperventilation?
• Which eye structure is the round, pigmented membrane?
• Which of the following is an active laser protective countermeasure?
• Which type of vision is considered the most dangerous for air crew members due to reduced acuity and color perception?
• What characterizes pulmonary DCS (chokes)?
• What are two types of exposures?
• Which statement correctly identifies the Deficient physiological zone (10,000-50,000 ft) with the corresponding pressure range?
• Which stage is the deepest stage of sleep?
• Which condition is characterized by nearsightedness, with focus in front of the retina?
• Which of the following is NOT listed as a subjective symptom of hypoxia?
• Which type of hearing loss is caused by damage to cochlea cilia due to noise or aging?
• What is the general term for the false perception of position or motion due to discordant orientation information?
• Who said, 'poison is in everything, and no thing is without poison. The dosage makes it either a poison or a remedy'?
• Barodontalgia is dental pain related to pressure changes and is most often experienced during which flight phase?
• Smoke that enters the cockpit, if inhaled, causes symptoms similar to what type of poisoning?
• Which of the following are the measurable characteristics of sound?
• In reference to all military aircraft, what do they all have in common?
• Which statement best differentiates simulator sickness from motion sickness?
• Hyperventilation lowers carbon dioxide and the blood becomes more alkaline. This typically leads to which effect on cerebral blood flow?
• Which of the following is NOT listed as a symptom of toxic fuel exposure?
• Which factor contributes to a higher incidence of decompression sickness at altitude?
• What sign characterizes the Critical Stage of hypoxia?
• As altitude increases, what happens to blood oxygen saturation?
• What are the non-mechanical effects of bubble formation in DCS?
• Which illusion is caused by environmental visual effects like rain, snow, or heat waves producing shimmering patterns?
• What is a Threshold Limit Value (TLV)?
• As you ascend, the composition of the air remains essentially the same; what changes with altitude?
• Which hypnotic/rest agent is noted for having a long half-life and is used for long duration rest?
• What are the two bubble formation theories for DCS?
• Which hydration practice is recommended to help prevent altitude illness?
• Which statement correctly describes Dalton's Law for partial pressures in a gas mixture?
• Gas dysbarism is best defined as
• What is the definition of sound?
• Which statement about altitude-related hypoxia and hyperventilation is true?
• Acute Mountain Sickness generally develops within which time frame after ascent?
• Which following is a direct cardiovascular response commonly associated with vibration exposure?
• According to Henry's Law, the amount of gas dissolved in a liquid is proportional to what?
• In aviation, which type of hearing loss is typically managed with helmet adjustments or radio volume rather than hearing aids?
• Should an aviator rely solely on the vestibular system while flying?
• In the Disturbance Stage of hypoxia, which of the following is NOT a typical symptom?
• What are the three processes involved in reducing the concentration of a chemical substance in the body?
• High-magnitude forces in aviation are defined as G-forces exceeding 10 G and lasting less than one second.
• Which condition results when the focal point is behind the retina?
• Who is considered the father of occupational medicine?
• Which concept describes intravascular bubbles behaving as foreign bodies in DCS?
• Paresthesia in DCS is characterized by which sensations on the skin?
• Paul Bert is known for which hypothesis regarding DCS?
• Which type of hypoxia is caused by a reduction in the oxygen carrying capacity of the blood?
• Which photoreceptor cells detect color?
• True or False: Vertigo is always correctable.
• Focal (central) vision is used for what function?
• Decompression sickness is an evolved gas disorder.
• What is the fundamental function of the circulatory system?
• Which atmospheric zone is defined as Space Equivalent, with altitudes greater than 50,000 feet?
• What is the main concern with noise in the Army?
• A pilot with Otitis Externa should be in non-flying status until what resolves?
• A false horizon sensory illusion can cause spatial disorientation by causing the pilot to use the sloping cloud layer as the horizontal reference.
• What is the recommended maximum duration for simulator sessions to minimize simulator sickness?
• What is your visual field of view when using central vision?
• Which of the following is a DCS prevention measure?
• What is the definition of inertia?
• What effect can vibration have on crewmember communications?
• Somatosensory cues rely on what condition to provide orientation cues?
• Which gas law explains why nitrogen leaves dissolved tissue during ascent, contributing to decompression sickness?
• Which item is NOT listed as a component of blood in the material?
• Which of the following is NOT a visual illusion?
• Which statement best distinguishes evolved gas dysbarism from trapped gas?
• If body area or size increases, how does the severity of acceleration on the body change?
• Perilymph fistula typically presents with which of the following?
• Is increased time at altitude associated with an increased risk of DCS?
• What is the mechanism of action of Diamox (acetazolamide) in AMS management?
• True or False: Central vertigo can be aggravated by lack of proprioception in the extremities.
• Which best describes the lens?
• Which type of hypoxia is caused by reduced PO2 in the lungs (high altitude)?
• Which of the following factors most directly increases the severity of accelerative effects?
• Which decibel level corresponds to the average human conversation?
• Which illusion causes misperception of height or depth due to perspective cues?
• Which are the mechanical effects of bubble formation in DCS?
• Which of the following best lists the three main components of fatigue?
• Which type of hypoxia occurs when tissues cannot use oxygen due to cyanide or narcotics?
• What do semicircular canals detect?
• Which of the following is NOT a somatogyral illusion?
• K-complexes are typically observed during which sleep stages?
• Which vision type is associated with color perception?
• Which factor, when coupled with vibration, can cause fatigue twice as fast and extend recovery time?
• Which of the following statements about TLVs is true?
• In Blackhawk and Chinook aircraft, crew members are required to wear what combination of gear?
• Graham's Law describes the rate of what process relative to molar mass?
• Which factor is described as affecting the severity of accelerations due to the axis of acceleration?
• Which part of the vestibular system causes somatogyral illusions?
• What is the typical grounding period after Type II DCS before full duty can resume?
• What is the most common form of spatial disorientation?
• What is your visual field of view when using ambient (peripheral) vision?
• Which symptom is typical of the compensatory stage of hypoxia?
• Which vestibular illusion is considered the most dangerous?
• What does Newton's First Law state?
• High-magnitude G-forces are defined as G-forces exceeding 10 G and lasting less than one second.
• What are the three routes a toxin can enter the body?
• For cerumen impaction in pilots, what is the recommended management?
• Which statement about High Altitude Pulmonary Edema management is true?
• Which item is NOT listed as a MUST HAVE criterion for Acute Mountain Sickness?
• Which corrective measure specifically helps manage hyperventilation?
• If the total atmospheric pressure is 380 mmHg and the oxygen fraction is 21%, what is the partial pressure of oxygen?
• DCS type with thorax symptoms (burning, stabbing chest pain, dry cough, sensation of suffocation) and bluish skin is known as?
• Which type of exposure refers to immediate health effects from a toxin?
• Which materials are mentioned as exposure sources in aviation environments?
• Which medication is commonly used for prevention and treatment of altitude sickness?
• What is the speed of sound at Sea Level at 21C in m/s?
• Gas exchange of carbon dioxide and oxygen occurs in the ______.
• Which Army helicopter generates the high noise level?
• Which self-imposed habit can contribute to hypemic hypoxia?
• CREEP acronym stands for which of the following?
• Which is a flight hazard related to glare that pilots may encounter?
• Ambient (peripheral) vision is used for what in flight?
• Raynaud's Disease in the context of vibration causes trauma to which structures?
• In diving DCS, when does DCS typically occur and what is the standard therapy?
• Which measure is a recommended method to prevent or treat hypoxia?
• What is the term for the loss of mechanical energy in a vibrating system?
• Which two protective measures can reduce the undesirable effects of noise?
• Type 2 decompression sickness typically presents with which symptoms?
• Which of the following is recommended to prevent gas expansion injuries during ascent?
• In rotorcraft, the high level of vibration is most noticeable during which phase of flight due to the transverse flow effect?
• What happens to total atmospheric pressure and partial pressure of oxygen as altitude increases?
• Which of the following statements about Paracelsus is true?
• Who was the first to describe the relationship between work and illness?
• If a crewmember has ear wax buildup in the ear canal combined with noise induced hearing loss, what type of hearing loss does this crewmember likely have?
• Which symptom is associated with Type 2 decompression sickness?
• Above which altitude does progressive deterioration of the body's compensatory abilities typically occur?
• What is the most dangerous SD type?
• What is the effect of longer duration of the accelerating force?
• Type I DCS treatment plan
• Which statement is true about Bernardino Ramazzini?
• Which condition is associated with aging and involves hardening of the lens leading to loss of elasticity?
• What is a degraded visual environment?
• Which type of hypoxia occurs when the blood’s ability to carry oxygen is reduced due to carbon monoxide or anemia?
• What does GRAM stand for?
• During respiration, which phase is active?
• Which surgical procedure is less likely to cause permanent vision change due to the thinness of the flap?
• Which axis is reported to be less tolerated during accelerations due to structural and physiological limits?
• In altitude DCS, when does DCS occur and how is therapy achieved?
• During which stage is the oxygen saturation typically 69-60%?
• What is the major cause of spatial disorientation?
• Which process reduces the concentration of a chemical by transforming it into a metabolite?
• Which eye structure is a transparent, colorless protective tissue?
• What is spatial disorientation?
• Which helicopter has the highest noise exposure level?
• What is hypoxia?
• The Coriolis illusion would most likely cause what type of spatial disorientation?
• Cholesteatoma in the middle ear typically requires what management approach?
• True or False: Exposure of aircrew to airborne toxins can lead to acute or chronic health effects?
• Which of the following is NOT listed as an effect of vibration on the body?
• During acclimatization, what happens to CO2 levels due to increased ventilation?
• Which of the following is a listed management approach for motion sickness during operations?
• Which brain wave is produced when awake or just before falling asleep?
• Type 2 decompression sickness features include
• Which protein within red blood cells carries oxygen by binding it to iron and is composed of four protein chains?
• Which of the following is an off-duty high impulse noise exposure hazard?
• What is the term for the number of oscillations of any object in a given time?
• What is the term for the motion of an object relative to a reference position involving a series of oscillations resulting in the displacement and acceleration of the object?
• Hand-Arm Vibration Syndrome is associated with loss of sensation and which other consequence?
• Where is the night blind spot located and what cells does it involve?
• If the rate of onset of acceleration increases, what happens to the severity of the effect on the body?
• Which type of decompression sickness involves larger joints such as the knee or shoulder and presents with dull, progressive pain as ascent continues?
• Which hematologic response increases within two hours of ascent?
• What is the primary mechanism behind decompression sickness (DCS) when moving from high to low ambient pressure?
• Which visual illusion is caused by tall grass or similar textures that makes a pilot continuously input the flight controls?
• During the Indifferent Stage of hypoxia, what is the typical oxygen saturation range?
• What are two types of noise?
• What is the atmospheric pressure in mm Hg at sea level?
• Caisson's disease refers to which condition?
• Disturbance Stage of hypoxia occurs at which altitude range?
• Which theory posits that motion sickness results from excessive stimulation of the vestibular system?
• Motion sickness management permits up to 3 flights and requires accompaniment by an instructor pilot. Which option matches this rule?
• The day blind spot corresponds to which retinal structure?
• Decelerative forces can cause incapacitation to crew members.
• Which outcome is associated with high positive +Gz acceleration?
• Grounding after tympanic membrane perforation is required unless there is what?
• Which of the following are common signs of motion sickness?
• Which SD risk factors can be readily and continually assessed?
• What are the two types of gas dysbarism?
• Back pain due to vibration is linked to which mechanism?
• During scotopic vision, which photoreceptors predominate?
• Which scenario best explains decompression sickness?
• In the circulatory model described, which vessels carry oxygenated blood?
• Otolith organs sense what?
• Which description correctly defines linear acceleration?
• Which two physical factors are most closely linked to altitude illness risk?
• Which of the following best describes photopic vision?
• Which statement BEST describes angular acceleration?
• What documentation allows the use of CEPs in all Army aircraft?
• Which sleep stage is typically unaffected during acclimatization?
• Which of the following is NOT a type of acceleration?
• Which statement about exhalation is true?
• During REM sleep, which of the following describes the EEG and EMG characteristics and eye movements?
• Which of the following is a respiratory function as described in the material?
• Why is noise-induced hearing loss undetectable?
• What is considered the most important cue to depth perception?
• In pilots, Otitis Media with Effusion may be treated with what to improve eligibility?
• What are the three general types of toxic hazards encountered in an aviation environment?
• Which vision type describes night vision with rods only?
• Evolved gas dysbarism occurs when...
• Which atmospheric layer contains most of the Earth's weather and extends from the surface to about 10 miles high?
• What chemical allows us to see black, white and gray colors at night?
• Which factors describe aircraft occupant survivability criteria?
• Which type of hypoxia occurs when circulation is inadequate despite adequate oxygen carrying capacity?
• Which is a primary function of the circulatory system?
• What is the term for the maximum displacement from the position at rest?
• What is the average time required for dark adaptation?
• In DCS Type I, which joints are most commonly affected?
• Which of the following is a sign of hypoxia?
• Which statement best describes a NOT function of sleep?
• The frequency that generates the most intense noise level is _________.
• Which combination of symptoms is typical of Ménière's disease?
• What is a commonly recommended ascent rate to prevent altitude sickness?
• Which statement correctly describes sound energy?
• According to Boyle's Law, if the pressure on a gas doubles at constant temperature, what happens to its volume?
• Histotoxic hypoxia is caused by?
• Which feature is associated with Vestibular Neuronitis/Labyrinthitis?
• Who wrote De Morbis Artificium, a work describing diseases of workers?
• What turns a sound into a noise?
• Which is a common symptom of hyperventilation?
• What toxic substances could you be exposed to in aviation environment?
• Type 1 decompression sickness features include
• Which CNS symptoms are commonly associated with decompression sickness?
• Which illusion is described as the movement of a stationary light perceived during darkness (Autokinesis)?
• Which type of vision occurs in daylight or bright light and provides central vision with high acuity?
• Which cutaneous manifestation is associated with Type 1 DCS?
• What is the initial management step for suspected DCS in flight?
• Hemoglobin has how many oxygen binding sites?
• Which statement correctly describes age-related risk of decompression sickness (DCS)?
• Which illusion involves confusion with ground lights rather than the horizon?
• What is tribonucleation in the context of bubble formation?
• What self-imposed stress makes crewmembers more likely to stare at objects and neglect proper scanning techniques, particularly at night?
• Which statement best describes the relationship between ambient pressure and bubble formation in DCS?
• Which condition is characterized by sudden onset of vertigo related to head position and is treated with Dix-Hallpike maneuver?
• The recommended initial management for ear blocks is to
• Which sensory systems affect equilibrium?
• What type of equipment provides great crash and hearing protection?
• Which hypoxia type results from reduction in total cardiac output or pooling of blood?
• Which biochemical mediator is linked to pain in DCS due to endothelial activation?
• If Type II DCS and no chamber is available, what is recommended?
• During the Compensatory Stage, what is the typical oxygen saturation range?
• Which of the following is a potential contributor to Eustachian Tube Dysfunction?
• What is a typical feature of Acoustic Neuroma?
• Which altitude range is classified as High Altitude?
• What is the threshold for discomfort in noise exposure?
• The statement 'Wet gases will expand more than dry gases' is: