Demerol 75 mg is ordered IVP q 4 to 6 hours PRN for pain. This medication is available in 100 mg/mL . How many mL will the nurse give every 4 to 6 hours PRN?
1. 0.75 mL
2. 75 mL
3. 0.15 mL
4. 0.26 mL
1
When using a single- or multiple-dose ample labeled with certain volume, desired dose divided by available dose (D/A) works: D/A = 75 mg ÷ 100 mg x 1 mL = 0.75 mL.
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