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Domain 1: Air Medical Operations & Safety (12 Questions)
Q1: You are dispatched to a scene call for a motor vehicle collision. The ground crew
has established a landing zone (LZ) in a grassy field. Upon arrival, you notice the LZ is
marked with a 100-foot by 100-foot area, has vehicles parked within 50 feet of the
perimeter, and the ground crew is using white road flares for marking. The pilot states
the wind is 15 knots with gusts to 25 knots. What is your primary concern and
appropriate action?
A. The LZ size is adequate; proceed with landing and request the vehicles be moved
after patient loading
B. The white road flares are acceptable; continue approach but monitor wind conditions
closely
C. The vehicles within 50 feet violate CAMTS standards requiring 100-foot obstacle
clearance; abort landing and request LZ relocation or vehicle removal before approach
[CORRECT]
D. The 100x100 foot LZ meets minimum requirements for most rotor-wing aircraft; the
wind conditions are within limits
Correct Answer: C
,Rationale: CAMTS standards and Air Methods protocols require a minimum 100x100
foot landing zone with 100-foot obstacle clearance in all directions. Vehicles within 50
feet create a significant safety hazard due to rotor wash, potential movement, and
debris projection. White road flares are prohibited as they can be mistaken for aircraft
lighting; yellow, orange, or red non-flame markers should be used. While the LZ size
meets minimum dimensions, the obstacle violation is critical. Wind gusts to 25 knots
may be acceptable depending on aircraft limitations, but the obstacle clearance issue
takes precedence. Options A and B represent serious safety violations. Option D
incorrectly prioritizes LZ size over obstacle clearance.
Q2: During a fixed-wing transport at FL250 (25,000 feet), a patient with a pneumothorax
develops worsening respiratory distress. The cabin altitude is maintained at 8,000 feet.
What physiological principle explains this deterioration, and what is the priority
intervention?
A. Henry's Law causing nitrogen bubble formation; administer supplemental oxygen and
descend immediately
B. Boyle's Law causing gas expansion in the pleural space; perform needle
decompression or chest tube placement [CORRECT]
C. Dalton's Law causing hypoxic hypoxia; increase cabin pressurization to sea level
D. Charles's Law causing temperature-related pressure changes; apply supplemental
heat and oxygen
Correct Answer: B
,Rationale: Boyle's Law states that gas volume expands as ambient pressure decreases.
At 8,000 feet cabin altitude (approximately 10.9 psi vs. 14.7 psi at sea level), a trapped
pneumothorax will expand significantly, potentially causing tension physiology. This is
the primary concern in aeromedical transport of patients with pneumothoraces. Needle
decompression or chest tube placement is indicated before or during altitude gain.
Option A describes decompression sickness (Henry's Law), which is not the immediate
issue. Option C describes hypoxia from Dalton's Law, but the cabin altitude of 8,000 feet
is generally tolerable with supplemental O2. Option D incorrectly applies Charles's Law,
which relates temperature and volume, not relevant here.
Q3: You are preparing to load a 180-pound patient on a stretcher into a rotor-wing
aircraft. The aircraft door height is 4 feet above ground level. What is the maximum safe
patient weight for a two-person lift, and what lifting technique should be employed?
A. 180 pounds is within safe limits for a two-person lift using a standard power lift
technique
B. 180 pounds exceeds NIOSH lifting guidelines; request a loading ramp or mechanical
lift device [CORRECT]
C. 180 pounds is acceptable if the patient can assist with the transfer
D. 180 pounds requires four crew members using a draw sheet technique
Correct Answer: B
Rationale: NIOSH lifting guidelines recommend a maximum of 35 pounds per person for
safe lifting, with absolute maximums of 51 pounds under ideal conditions. A 180-pound
patient requires mechanical assistance, loading ramps, or winch systems. Air Methods
, and CAMTS standards emphasize crew safety and injury prevention through
engineering controls. The 4-foot height differential increases the risk of back injury
significantly. Option A violates occupational safety standards. Option C is unsafe as
critical care patients cannot assist reliably. Option D, while better than A, still exceeds
safe manual lifting limits and may not be feasible with limited crew.
Q4: During a night scene operation, you observe the pilot performing a "high
reconnaissance" of the landing zone. The pilot then radios that the LZ is "red" on the
approach path. What does this indicate, and what is your response?
A. The LZ is clear; proceed with normal landing
B. The LZ is marginal; proceed with caution and be prepared to abort
C. The LZ is unsafe; do not land and request alternative LZ or ground transport
[CORRECT]
D. The LZ requires instrument approach; switch to IFR procedures
Correct Answer: C
Rationale: In aeromedical operations, "red" indicates an unsafe landing zone that
requires aborting the approach. Standard LZ grading uses green (safe), yellow
(marginal/caution), and red (unsafe) terminology. A red designation may result from
obstacles, slope, surface conditions, size inadequacy, or unsecure perimeter. The crew
must never override the pilot's safety assessment. Option A represents a dangerous
misunderstanding. Option B might apply to "yellow" but not "red." Option D incorrectly
assumes instrument capabilities; most aeromedical helicopters operate VFR for scene
calls.