Certified Transport Registered Nurse Certification Practice Exam

Which type of injury is a contraindication for the use of succinylcholine?

1. Recent crush injury

2. Acute fracture

3. Chronic pain

4. Respiratory distress syndrome

The correct answer is: Recent crush injury

Succinylcholine is a neuromuscular blocking agent commonly used to facilitate intubation and provide muscle relaxation during surgery. However, its use is contraindicated in certain conditions due to the risk of severe complications. Recent crush injuries pose a specific risk because succinylcholine can lead to increased potassium levels in the blood. After a crush injury, muscle cells can become damaged and release potassium, a condition known as hyperkalemia. Succinylcholine can exacerbate this release, leading to life-threatening cardiac arrhythmias or cardiac arrest. Therefore, in the context of a recent crush injury, the use of succinylcholine should be avoided to prevent these serious complications. Understanding the implications of succinylcholine in relation to specific injuries is critical for safe practice in transport nursing, particularly in emergency situations where rapid decision-making is essential for patient safety. The other options listed do not carry the same immediate risk of hyperkalemia related to succinylcholine use.