A client receives a prescription for penicillin 1.2 million units IM. The available vial is labeled, “600,000 units/mL.” How many mL should the nurse administer? (Enter numeric value only.)

Step-by-Step Calculation

Step 1: Determine the total units prescribed.

• The prescription is for 1.2 million units.

Step 2: Determine the concentration of the available vial.

• The vial is labeled “600,000 units/mL.”

Step 3: Calculate the volume to be administered.

• Volume to be administered = Total units prescribed ÷ Concentration of the vial
• Volume to be administered = 1,200,000 units ÷ 600,000 units/mL

Result: The nurse should administer 2 mL.

Choice A reason:

Counting the apical and radial pulses simultaneously can help detect pulse deficits, which may indicate cardiac issues. However, this is not the most critical assessment for a client receiving hydromorphone.

Choice B reason:

Observing for edema around the ankles is important for assessing fluid retention and potential heart failure. While relevant, it is not the primary concern for a client on hydromorphone.

Choice C reason:

Auscultating the client’s bowel sounds is crucial because hydromorphone, like other opioids, can cause constipation and potentially lead to paralytic ileus, a serious condition where the intestines stop moving food through. Monitoring bowel sounds helps detect early signs of this complication.

Choice D reason:

Measuring the client’s capillary glucose level is important for diabetic patients or those at risk of hyperglycemia. However, it is not directly related to the administration of hydromorphone.