A nurse is transcribing a new prescription in a client's medical record for enoxaparin 30 milligrams, subcutaneously every 12 hours. Which of the following documentation should the nurse use?

Choice A reason: "SQ q AM and q HS" is incorrect because it specifies morning and bedtime administration rather than every 12 hours. This could lead to dosing errors. Choice B reason: "Enoxaparin 30 mg subcut every 12 hr" is the correct documentation. It uses standard terminology, specifies the correct dose, route, and frequency, and avoids abbreviations that could be misinterpreted. Choice C reason: "30 mcg" is incorrect because it changes the dosage from milligrams to micrograms, which is a thousand-fold difference. This would result in a dangerous underdose. Choice D reason: "sub q every AM and HS" is incorrect because it specifies administration twice daily at morning and bedtime rather than strictly every 12 hours. This could cause uneven dosing intervals.