CFRN Study Guide Questions with Correct Answers| Latest Update Guaranteed Success
Which gas law explains why a pneumothorax expands as an unpressurized cabin ascends?
Boyle's law
Request the pilot fly at the lowest, safest altitude.
Gases expand at higher altitudes Boyle's law
Which gas law explains why oxygen tank pressures may change between takeoff and at
altitudes? Gay-Lussac's Law
Oxygen tank pressures decrease at higher altitude due to cooler temperatures shrinking gases
Gay-Lussac's Law
Which gas law depicts why flight crews may be able to transport an obese patient in an aircraft
in winter that they couldn't transport in warmer months? Charle's Law
Describes how cooer air is denser, allowing the wings to create more lift in cold temperatures
Charle's Law
Night vision deterioration starts at what altitude? Night vision loss begins at 5,000 ft in the
indifferent stage of hypoxia, along w/ an increase respiratory and heart rate.
What does hypoxia hypoxia cause? Impedes alveolar gas exchange. The decreased
barometric pressure at high altitude causes hypoxia, so hypoxia hypoxia may be referred to as
altitude hypoxia.
A patient w/ emphysema/COPD may experience which type of hypoxia during air transport?
Hypoxic
,A patient w/ an active GI bleed may experience which type of hypoxia during transport?
Hypemic hypoxia
(rhymes w/ anemic, cellular hypoxia largely due to blood loss or anemia)
Pts w/ carbon monoxide and cyanide exposure may experience which two types of hypoxia?
Histotoxic and Hypemic
Historic Hypoxia - alcohol, cyanide, and carbon monoxide poisoning, resulting in the cells
inability to use oxygen.
Cyanide poisoning tx Hydroxycobalamin
Increase in attitude increases or decreases humidity and temperature decreases both
What injuries are expected from overpressure after an explosion? Pneumothorax.
Occurs when the shock wave travels through the air and damages the grass filled organs like
the lunges. Second injury is from flying debris, thus penetrating injury.
Tertiary head injuries from being thrown to the ground.
Quaternary injuries from burns.
Undergarments worn under the fire resistant flight suit should be made of natural fibers and
should be made of natural fibers, how much air space should be between suit and garments?
0.25 inch
When a helicopter lands on a slope or uneven terrain, what is the best way to approach and
depart the aircraft? From the downhill side, in a crouched position.
How do you manage an in flight emergency? aviate, navigate, communicate
The priorities are to retain control of the aircraft, choose and appropriate emergency landing
site, then report the emergency to the program communication center.
, An impact that exceeds how many G's will automatically activate the emergency locator
transmitter? 4
Which universal distress frequency transmits a digital signal including GPS location after ELT
activation? 406MHz
The pilot fails to check the power during lift off and the helicopter impacts the ground and
smoke fills the cockpit. What is the nurse's priority action? Exit the aircraft and meet at a
pre-designated location (12 o'clock position)
Which intervention should be performed first for a patient in resp. distress due to a simple
pneumothorax? Chest Tube
Insertion should be performed prior to bipap, bipap can push a simple pneumothorax to a
tension pneumothorax.
Interpret ABG: pH 7.25, PaO2 40, HCO3 15 metabolic acidosis
Metabolic Acidosis conditions: ketoacidosis, salicylate, methanol, ethylene glycol ingestion,
renal failure, diarrhea, and lactic acidosis from shock.
Interpret ABG: pH 7.33, PaO2 32, HCO3 18 Partial compensated metabolic acidosis
Which induction agent is preferred in head trauma since it has little to no effect on MAP and
decreases ICP? Etomidate
drawbacks of etomidate is that it doesn't provide analgesia and possible adrenal suppression.
What is the amount of blood in the ventricles at end diastole? Preload
Which gas law explains why a pneumothorax expands as an unpressurized cabin ascends?
Boyle's law
Request the pilot fly at the lowest, safest altitude.
Gases expand at higher altitudes Boyle's law
Which gas law explains why oxygen tank pressures may change between takeoff and at
altitudes? Gay-Lussac's Law
Oxygen tank pressures decrease at higher altitude due to cooler temperatures shrinking gases
Gay-Lussac's Law
Which gas law depicts why flight crews may be able to transport an obese patient in an aircraft
in winter that they couldn't transport in warmer months? Charle's Law
Describes how cooer air is denser, allowing the wings to create more lift in cold temperatures
Charle's Law
Night vision deterioration starts at what altitude? Night vision loss begins at 5,000 ft in the
indifferent stage of hypoxia, along w/ an increase respiratory and heart rate.
What does hypoxia hypoxia cause? Impedes alveolar gas exchange. The decreased
barometric pressure at high altitude causes hypoxia, so hypoxia hypoxia may be referred to as
altitude hypoxia.
A patient w/ emphysema/COPD may experience which type of hypoxia during air transport?
Hypoxic
,A patient w/ an active GI bleed may experience which type of hypoxia during transport?
Hypemic hypoxia
(rhymes w/ anemic, cellular hypoxia largely due to blood loss or anemia)
Pts w/ carbon monoxide and cyanide exposure may experience which two types of hypoxia?
Histotoxic and Hypemic
Historic Hypoxia - alcohol, cyanide, and carbon monoxide poisoning, resulting in the cells
inability to use oxygen.
Cyanide poisoning tx Hydroxycobalamin
Increase in attitude increases or decreases humidity and temperature decreases both
What injuries are expected from overpressure after an explosion? Pneumothorax.
Occurs when the shock wave travels through the air and damages the grass filled organs like
the lunges. Second injury is from flying debris, thus penetrating injury.
Tertiary head injuries from being thrown to the ground.
Quaternary injuries from burns.
Undergarments worn under the fire resistant flight suit should be made of natural fibers and
should be made of natural fibers, how much air space should be between suit and garments?
0.25 inch
When a helicopter lands on a slope or uneven terrain, what is the best way to approach and
depart the aircraft? From the downhill side, in a crouched position.
How do you manage an in flight emergency? aviate, navigate, communicate
The priorities are to retain control of the aircraft, choose and appropriate emergency landing
site, then report the emergency to the program communication center.
, An impact that exceeds how many G's will automatically activate the emergency locator
transmitter? 4
Which universal distress frequency transmits a digital signal including GPS location after ELT
activation? 406MHz
The pilot fails to check the power during lift off and the helicopter impacts the ground and
smoke fills the cockpit. What is the nurse's priority action? Exit the aircraft and meet at a
pre-designated location (12 o'clock position)
Which intervention should be performed first for a patient in resp. distress due to a simple
pneumothorax? Chest Tube
Insertion should be performed prior to bipap, bipap can push a simple pneumothorax to a
tension pneumothorax.
Interpret ABG: pH 7.25, PaO2 40, HCO3 15 metabolic acidosis
Metabolic Acidosis conditions: ketoacidosis, salicylate, methanol, ethylene glycol ingestion,
renal failure, diarrhea, and lactic acidosis from shock.
Interpret ABG: pH 7.33, PaO2 32, HCO3 18 Partial compensated metabolic acidosis
Which induction agent is preferred in head trauma since it has little to no effect on MAP and
decreases ICP? Etomidate
drawbacks of etomidate is that it doesn't provide analgesia and possible adrenal suppression.
What is the amount of blood in the ventricles at end diastole? Preload
