The following medications are listed on a client’s medication administration record (MAR). Which medication order should the nurse question? 1. Lasix 40 mg, po, STAT  2. Ampicillin 500 mg, q6h, IVPB...

The following medications are listed on a client’s medication administration record (MAR). Which medication order should the nurse question?

1. Lasix 40 mg, po, STAT

 2. Ampicillin 500 mg, q6h, IVPB

3. Humulin L (Lente) insulin 36 units, subcutaneously, every morning before breakfast

4. Codeine q4–6h, po, prn for pain