Give Nitroprusside 0.5 mcg/kg/min. The client weighs 176 lbs. The drug is available as 500mg in 500 mL of fluid. Calculate mcg/min, mcg/hr, and mL/hr. (Round your answer to the nearest tenth and include the units of measure.)
The Correct Answer is ["2.4"]
Rationale:
To calculate the dosage of Nitroprusside in mcg/min, first convert the client's weight from pounds to kilograms, knowing that 1 kg equals 2.2 lbs. Therefore, 176 lbs is approximately 80 kg. Next, multiply the client's weight in kg by the dosage rate: 0.5 mcg/kg/min. So, 80 kg * 0.5 mcg/kg/min equals 40 mcg/min. To find mcg/hr, multiply the mcg/min dosage by 60, the number of minutes in an hour, which gives us 2400 mcg/hr. Finally, to calculate mL/hr, use the concentration of the drug: 500 mg in 500 mL. Since 1 mg equals 1000 mcg, 500 mg is 500,000 mcg. Divide the hourly dosage in mcg by the total number of mcg in the available fluid to find the mL/hr. Thus, 2400 mcg/hr divided by (500,000 mcg / 500 mL) results in 2.4 mL/hr. Rounded to the nearest tenth, the final dosages are 40 mcg/min, 2400 mcg/hr, and 2.4 mL/hr.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Hypertension is not a typical finding in SIADH; fluid retention may lead to slight increases in blood pressure but not significant hypertension.
B. Polyuria is not expected in SIADH; decreased urine output is more common.
C. Concentrated urine is expected in SIADH due to excessive reabsorption of water.
D. Hypernatremia is not expected in SIADH; hyponatremia due to dilution of sodium is more common.
Correct Answer is ["22.6"]
Explanation
To calculate the IV pump setting, first convert the client's weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds. The client weighs 166 pounds, which is approximately 75.45 kilograms. Next, calculate the dosage in units per hour by multiplying the client's weight in kilograms by the ordered dosage of 15 units/kg/hr, which equals 1131.75 units/hr. Since Heparin is available as 25,000 units in 500 ml, divide the total units in the bag by the volume to find the concentration, which is 50 units/ml. Finally, divide the dosage required per hour by the concentration to find the volume to be administered per hour. Therefore, the IV pump should be set to approximately 22.6 ml/hr, rounding to the nearest tenth.
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