HESI RN Med surg proctored exam 2
Calculation
The healthcare provider (HCP) prescribes diazepam 8 mg IM every 4 hours PRN muscle spasms for a client with a fractured femur. The available vial is labeled, "Diazepam Injection, USP 10 mg/2 mL." How many mL should the nurse administer to the client? (Enter numerical value only. If rounding is required, round to the nearest tenth).
mL
Explanation & Rationale
Step 1: Determine the dosage required. 8 mg Step 2: Identify the concentration available. 10 mg in 2 mL Step 3: Calculate the volume to be administered. 8 mg ÷ (10 mg ÷ 2 mL) Result: 8 mg ÷ 5 mg/mL Result: 1.6 mL
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