12. The physician has ordered the patient to receive Heparin 20 u/kg/hr in a continuous IV infusion. The client weighs 195 pounds. Heparin is available in a premixed bag and is labeled as 25,000 units in 250 ml. Calculate how many ml/hr to set the IV pump. Round answer to nearest whole number.
The Correct Answer is ["18"]
To calculate the IV pump setting, first convert the patient's weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds. The patient weighs 195 pounds, which is approximately 88.64 kilograms (195 / 2.2). Next, calculate the total units of Heparin needed per hour by multiplying the patient's weight in kilograms by the dosage ordered: 20 units/kg/hr. So, 88.64 kg * 20 units/kg/hr equals 1,772.8 units/hr. Now, determine how many milliliters per hour this dosage requires. Since the premixed bag contains 25,000 units in 250 ml, there are 100 units per ml (25,000 units / 250 ml). Finally, divide the total units needed per hour by the concentration to find the volume needed per hour: 1,772.8 units/hr / 100 units/ml equals 17.728 ml/hr. Rounded to the nearest whole number, the IV pump should be set to 18 ml/hr.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A.Bradycardia is not a typical finding in diabetes insipidus.
B. Polyphagia is more associated with diabetes mellitus, not diabetes insipidus.
C. Dehydration is a common finding in diabetes insipidus due to excessive urine output.
D. Hyperglycemia is associated with diabetes mellitus, not diabetes insipidus.
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.
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