Question

A new medical resident writes an order for oxycodone CR (Oxy Contin) 10 mg PO q2h prn. Which part of the order does the nurse question?

1. The drug
2. The time interval
3. The dose
4. The route

Answer 1

The nurse should question the time interval prescribed for oxycodone CR, as every 2 hours is too frequent for a controlled-release formulation designed to last 12 hours.

Step-by-step explanation:

The nurse would question the time interval of the medication order, which specifies oxycodone CR (controlled release) to be taken every 2 hours (q2h) as needed (prn). Oxycodone CR is formulated to provide pain relief over an extended period, typically 12 hours. Therefore, taking it every 2 hours would provide an excessive dosage within a short time frame, leading to potential overdose and serious side effects. The correct dosing interval is critical to maintain optimal therapeutic drug levels while minimizing risks of toxicity and side effects. In this case, the dosage itself, the route of administration, and the choice of drug do not seem to be the issue, rather it is the frequency of administration that requires revision.