The nurse is preparing to administer adenosine (Adenocard) to a client. What is the correct half-life for the medication?
1. 10 days.
2. 10 seconds.
3. 10 hours.
4. 10 minutes.
Correct Answer: 2
Rationale 1: The half-life is 10 seconds.
Rationale 2: Adenosine (Adenocard, Adenoscan) is given as a 1-to-2—second bolus IV injection to terminate serious atrial tachycardia by slowing conduction through the AV node and decreasing automaticity of the SA node. Its primary indication is a specific dysrhythmia known as paroxysmal supraventricular tachycardia (PSVT), for which it is a drug of choice. Because of its 10-second half-life, adverse effects are generally self-limiting.
Rationale 3: The half-life is 10 seconds.
Rationale 4: The half-life is 10 seconds.
Global Rationale: Adenosine (Adenocard, Adenoscan) is given as a 1-to-2—second bolus IV injection to terminate serious atrial tachycardia by slowing conduction through the AV node and decreasing automaticity of the SA node. Its primary indication is a specific dysrhythmia known as paroxysmal supraventricular tachycardia (PSVT), for which it is a drug of choice. Because of its 10-second half-life, adverse effects are generally self-limiting.
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