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 B
Explanation
A. Good hand hygiene is important for general infection prevention but is not specific to meningitis prevention.
B. Vaccination against meningococcal bacteria is a key preventive measure and a primary example of health promotion for meningitis.
C. Avoiding close contact with infected individuals helps prevent the spread but is more of a preventive action than a health promotion.
D. Drinking plenty of fluids is beneficial for overall health but does not specifically prevent meningitis.
Correct Answer is C
Explanation
. Bounding peripheral pulses are not associated with diabetes insipidus.
B. Bradycardia is not a typical manifestation of diabetes insipidus.
C. Urine specific gravity 1.002 indicates very dilute urine, which is a hallmark of diabetes insipidus due to the kidneys' inability to concentrate urine.
D. Moist mucous membranes are not expected in diabetes insipidus; dehydration often leads to dry mucous membranes.
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