A heparin infusion is prescribed for a client who weighs 220 pounds. After administering a bolus dose of 80 units/kg, the nurse calculates the infusion rate for the heparin solution at 18 units/kg/hour. The available solution is "Heparin Sodium 25,000 Units in 5% Dextrose Injection 250 mL". The nurse should program the infusion pump to deliver how many mL/hour? (Enter numeric value only. If rounding is required, round to the nearest whole number.)
The Correct Answer is ["18"]
Calculation:
- Convert the client's weight from pounds (lb) to kilograms (kg).
The client's weight is 220 lb.
Client weight (kg) = 220 lb/2.2 lb/kg
= 100 kg.
- Calculate the total heparin dose to be administered per hour (units/hr).
The ordered rate is 18 units/kg/hour.
Total dose rate (units/hr) = 18 units/kg/hour×100 kg
= 1800 units/hr.
- Determine the concentration of the available solution (units/mL).
Available solution is 25,000 units in 250 mL.
Concentration (units/mL) = 25,000 units/250 mL
= 100 units/mL.
- Calculate the infusion rate in milliliters per hour (mL/hr).
Infusion rate (mL/hr) = Total dose rate (units/hr)/Concentration (units/mL)
= 1800 units/hr/100 units/mL
= 18 mL/hr.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Prone: Prone positioning limits assessment of spinal curvature, extremity alignment, and body symmetry because the client is lying on the abdomen, which can obscure certain postural deviations.
B. Sims: Sims position is primarily used for rectal or vaginal procedures and does not provide a full view of overall body alignment, making it less ideal for assessment purposes.
C. Supine: Supine position allows the client to lie flat on the back with the body fully supported. This position provides the best view of the head, neck, spine, shoulders, hips, and extremities for a comprehensive assessment of body alignment.
D. Fowlers: Fowlers position elevates the head and torso, which may alter natural spinal alignment and obscure an accurate assessment of posture and symmetry compared with a flat, supine position.
Correct Answer is C
Explanation
A. Monitor for desquamation and normal flora overgrowth: While monitoring skin integrity is important, this does not directly prevent the primary complication of scabies, which is secondary bacterial infection from scratching.
B. Wash skin between application of topical antiparasitic doses: Washing between doses can remove the medication prematurely, reducing its effectiveness. The lotion should remain on for the prescribed time before being washed off.
C. Keep the child's nails short and encourage use of hand mittens: Trimming nails and using mittens reduce scratching and skin breakdown, which lowers the risk of bacterial superinfection, the main complication of scabies in children.
D. Shave the body hair before applying the scabicide lotion: Shaving is not recommended, as scabicide is effective when applied to the skin surface. Shaving may cause irritation and increase discomfort without improving treatment outcomes.
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