CFRN Flight and Transport 4

Question 1

During a long fixed-wing transport at FL250 (25,000 feet), the aircraft loses pressurization. The flight nurse's FIRST priority is:

Accepted Answer

Don supplemental oxygen for crew and patient immediately

Answer

At 25,000 feet the time of useful consciousness is approximately 3–5 minutes; immediate oxygen use is the first and critical survival action.

Question 2

The primary advantage of a rotor-wing aircraft over a ground ALS unit for trauma transport in a congested urban area is:

Accepted Answer

Ability to bypass traffic and deliver point-to-point care

Answer

Helicopters bypass traffic, travel directly to the receiving facility, and can dramatically reduce scene-to-definitive-care intervals in congested areas.

Question 3

Which physiological stress of flight is most likely to worsen a patient with a closed head injury by increasing ICP?

Accepted Answer

Hypoxia from decreased PaO2 at altitude

Answer

Hypoxia causes cerebral vasodilation and increased ICP; even moderate altitude-related hypoxia can be dangerous in TBI patients.

Question 4

A flight nurse is managing a chest tube during transport. During ascent, the drainage chamber should be:

Accepted Answer

Left on water-seal and monitored for increased bubbling

Answer

The chest tube should remain on water-seal; increased bubbling during ascent may indicate expansion of residual pneumothorax and requires close monitoring.

Question 5

Which of the following statements about gravitational forces (G-forces) during air medical transport is correct?

Accepted Answer

Negative Gz forces experienced in turbulence can transiently reduce preload

Answer

Negative Gz forces in turbulence can cause cephalad blood shift and transiently reduce cardiac preload, which is significant in hemodynamically unstable patients.

CFRN - Certified Flight Registered Nurse Practice Test

CFRN - Certified Flight Registered Nurse Practice Test

CFRN Flight and Transport 4