A client receives a prescription for fentanyl 100 mcg IV every 1 to 2 hours PRN for severe pain. The medication is available in 0.05 mg/mL vial. How many ml should the nurse administer? (Enter numerical value only.)
The Correct Answer is ["2"]
Given:
Ordered dose of Fentanyl: 100 mcg
Concentration of Fentanyl: 0.05 mg/mL
Step 1: Convert mcg to mg:
Ordered dose (mg) = Ordered dose (mcg) / 1000 mcg/mg
Ordered dose (mg) = 100 mcg / 1000 mcg/mg
Ordered dose (mg) = 0.1 mg
Step 2: Set up the proportion:
Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)
Step 3: Substitute the values:
0.1 mg / Volume = 0.05 mg/mL
Step 4: Solve for the unknown volume:
Volume = 0.1 mg / (0.05 mg/mL)
Volume = 0.1 mg x (1 mL / 0.05 mg)
Volume = 2 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["13"]
Explanation
Given:
Total insulin in solution: 125 units
Ordered infusion rate: 10 units/hour
Step 1: Calculate the total infusion time:
Total infusion time (hours) = Total insulin (units) / Infusion rate (units/hour)
Total infusion time (hours) = 125 units / 10 units/hour
Total infusion time (hours) = 12.5 hours
Step 2: Round to the nearest whole number:
Total infusion time (hours) ≈ 13 hours
Correct Answer is ["250"]
Explanation
Given:
Volume of fluid: 500 mL
Infusion time: 2 hours
Formula:
Flow rate (mL/hr) = Volume (mL) / Time (hr)
Step 1: Calculate the infusion rate in mL/hr:
Flow rate (mL/hr) = 500 mL / 2 hr
Flow rate (mL/hr) = 250 mL/hr
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