Certified Hyperbaric Technologist Practice Test

Which pulse should be monitored closely in a crush injury between the elbow and the wrist?

1. Ulnar pulse

2. Brachial pulse

3. Radial pulse

4. Carotid pulse

The correct answer is: Radial pulse

Monitoring the radial pulse is crucial in the context of a crush injury located between the elbow and the wrist for several reasons. The radial artery, which can be palpated at the wrist, supplies blood to the forearm, wrist, and hand. Injuries or compression that occur in the region between the elbow and the wrist can potentially compromise the blood flow through the radial artery due to swelling, fractures, or direct trauma. In assessing circulation and functionality in cases of crush injuries, clinicians often check the distal pulses that correspond to the affected area. The radial pulse is particularly indicative of the perfusion status to the hand and fingers. Ensuring that the radial pulse is present and strong can help assess whether there is adequate blood flow, which is vital for preventing complications such as ischemia or necrosis of the tissues distal to the injury site. The other options are less relevant in this specific context. The brachial pulse, located in the upper arm, is not as directly related to the status of the wrist or hand circulation, while the ulnar pulse, although important, is typically not the primary focus when monitoring a crush injury that primarily affects the radial artery. The carotid pulse, on the other hand, is related to central circulation and does