The healthcare provider prescribes a secondary infusion of cefazolin 0.7 gram in 50 mL of D5W to infuse over 30 minutes. The drop factor is 10 gtt/mL. The nurse should regulate the IV to deliver how many drops/minute? (Enter numeric value only. If rounding is required, round to the nearest whole number.)
The Correct Answer is ["17"]
Given:
Volume of fluid: 50 mL
Infusion time: 30 minutes
Drop factor: 10 gtt/mL
Formula:
Flow rate (gtt/min) = (Volume (mL) / Time (min)) x Drop factor (gtt/mL)
Step 1: Calculate the infusion rate in mL/min:
Infusion rate (mL/min) = Volume (mL) / Time (min)
Infusion rate (mL/min) = 50 mL / 30 min
Infusion rate (mL/min) = 1.67 mL/min
Step 2: Calculate the flow rate in gtt/min:
Flow rate (gtt/min) = Infusion rate (mL/min) x Drop factor (gtt/mL)
Flow rate (gtt/min) = 1.67 mL/min x 10 gtt/mL
Flow rate (gtt/min) = 16.7 gtt/min
Step 3: Round to the nearest whole number:
Flow rate (gtt/min) ≈ 17 gtt/min
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["9"]
Explanation
Given:
Ordered dose of insulin: 0.1 units/kg
Patient weight: 200 pounds
Step 1: Convert patient weight from pounds to kilograms:
1 pound (lb) = 0.453592 kilograms (kg)
Patient weight in kg = 200 lbs x 0.453592 kg/lb = 90.718 kg
Step 2: Calculate the total dose of insulin:
Total dose (units) = Ordered dose (units/kg) x Patient weight (kg)
Total dose (units) = 0.1 units/kg x 90.718 kg
Total dose (units) = 9.0718 units
Step 3: Round to the nearest whole number:
Total dose (units) ≈ 9 units
Correct Answer is ["0.8"]
Explanation
Given:
Ordered dose of phenytoin: 20 mg
Concentration of phenytoin suspension: 125 mg/5 mL
Step 1: Set up the proportion:
Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)
Step 2: Substitute the values:
20 mg / Volume = 125 mg/5 mL
Step 3: Solve for the unknown volume:
Volume = 20 mg / (125 mg/5 mL)
Volume = 20 mg x (5 mL / 125 mg)
Volume = 0.8 mL
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