Certified Transport Registered Nurse Certification Practice Exam

What is the necessary time of onset for succinylcholine?

1. 15 - 30 seconds

2. 30 seconds to 1 minute

3. 1 - 2 minutes

4. 2 - 3 minutes

The correct answer is: 30 seconds to 1 minute

Succinylcholine, a neuromuscular blocking agent commonly used in anesthesia, has a rapid onset of action, typically between 30 seconds to 1 minute. This rapid effect is crucial in clinical settings, particularly for intubation or in emergency situations where rapid paralysis of the patient's muscles is required to facilitate airway management. The onset time is significant as it determines how quickly the medication will take effect after administration, allowing healthcare providers to plan subsequent actions, such as intubation or surgical interventions. Understanding the pharmacodynamics of succinylcholine is vital for transport registered nurses, as they often encounter situations demanding swift decision-making and intervention. While the other choices indicate longer onset times, they do not accurately reflect the swift action associated with succinylcholine, emphasizing the importance of knowing the exact pharmacokinetics when providing care.