Which abbreviation is on the official "Do Not Use" list of the Joint Commission?
OS
QD
PO
OD
The Correct Answer is B
QD is an abbreviation for "quaque die" which means "every day" in Latin. However, QD is on the official "Do Not Use" list of the Joint Commission because it can be mistaken for QOD, which means "every other day" in Latin¹². This can lead to medication errors and patient harm. Therefore, the Joint Commission recommends writing "daily" instead of QD.
The other options are not on the official "Do Not Use" list of the Joint Commission. OS, PO, and OD are abbreviations for "oculus sinister" (left eye), "per os" (by mouth), and "oculus dexter" (right eye) respectively. They are commonly used in ophthalmology and pharmacy³. However, they should be used with caution and only when appropriate, as they can also be confused with other abbreviations or symbols.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
To find the dose of ondansetron, you need to use the formula for weight-based dosage calculation:
Dose (mg) = Weight (kg) x Prescribed dose (mg/kg)
Since the client's weight is 70 kg and the prescribed dose is 0.34 mg/kg, plug in these values into the formula:
Dose (mg) = 70 kg x 0.34 mg/kg
Simplify and solve for the dose:
Dose (mg) = 23.8 mg
Therefore, the client should receive **23.8 mg** of ondansetron prior to chemotherapy.

Correct Answer is D
Explanation
The safe dose of ertapenem for children is **15 mg/kg** twice daily, with a maximum dose of **500 mg** per dose. Therefore, the correct answer is **d) 15 mg/kg twice daily**. Ertapenem is a carbapenem antibiotic that is used to treat various infections caused by susceptible bacteria.
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