A nurse is preparing to administer warfarin 5 mg PO to a client. Available is warfarin 2 mg tablets. How many tablets should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["2.5"]
Calculation:
Ordered dose: 5 mg
Available strength: 2 mg per tablet
Calculate the number of tablets needed:
Formula: Number of tablets = Desired dose / Available dose per tablet
= 5 mg / 2 mg/tablet
= 2.5 tablets
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["45"]
Explanation
Calculation:
Convert the client's weight from pounds (lbs) to kilograms (kg):
Formula: Weight in kg = Weight in lbs / 2.2 lbs/kg
= 138 lbs / 2.2 lbs/kg
≈ 62.73 kg
Calculate the total dose of acyclovir needed in milligrams:
Ordered dose: 5 mg/kg
Client's weight in kg: ≈ 62.73 kg
Formula: Total dose (mg) = Ordered dose (mg/kg) × Client's weight (kg)
= 5 mg/kg × 62.73 kg
≈ 313.65 mg
Determine the concentration of the available acyclovir solution:
Available concentration: 7 mg/mL
Calculate the volume of acyclovir to administer:
Formula: Volume to administer (mL) = Desired dose (mg) / Concentration (mg/mL)
= 313.65 mg / 7 mg/mL
≈ 44.81 mL
Round the answer to the nearest whole number:
44.81 Ml rounded to the nearest whole number is 45 mL.
Correct Answer is ["25"]
Explanation
Calculation:
Determine the total volume to be infused per hour:
Ordered rate: 100 mL/hr
Determine the drop factor of the IV tubing:
Drop factor: 15 gtt/mL
Calculate the total number of drops to be infused per hour:
Formula: Total drops per hour (gtt/hr) = Total volume (mL/hr) × Drop factor (gtt/mL)
= 100 mL/hr × 15 gtt/mL
= 1500 gtt/hr
Convert the flow rate to drops per minute:
Conversion factor: 1 hour = 60 minutes
Formula: Flow rate (gtt/min) = Total drops per hour (gtt/hr) / 60 min/hr
= 1500 gtt/hr / 60 min/hr
= 25 gtt/min
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