A nurse is preparing to administer potassium 0.4 mEq/kg/hr to a newborn who weighs 6.7 lb. Available is potassium 10 mEq in 0.9% sodium chloride 100 mL. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["12.2"]
To calculate the IV pump setting, first convert the newborn's weight from pounds to kilograms, knowing that 1 pound is equivalent to 0.453592 kilograms. The newborn weighs 6.7 pounds, which is approximately 3.039 kg (6.7 lb * 0.453592 kg/lb). Next, calculate the total amount of potassium needed per hour by multiplying the newborn's weight in kilograms by the prescribed dose: 0.4 mEq/kg/hr * 3.039 kg = 1.2156 mEq/hr. Since the available potassium is 10 mEq in 100 mL, this means there is 0.1 mEq/mL. To find out how many mL/hr to administer, divide the total mEq needed per hour by the concentration: 1.2156 mEq/hr ÷ 0.1 mEq/mL = 12.156 mL/hr. Rounded to the nearest tenth, the IV pump should be set to deliver 12.2 mL/hr.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["120"]
Explanation
To convert grams to milligrams, you multiply the number of grams by 1,000. Therefore, to administer ferrous sulfate 0.12 g orally, you would give 120 mg, as 0.12 grams equals 120 milligrams. When rounding to the nearest whole number, it remains 120 mg.
Correct Answer is A
Explanation
A. Frequency of administration: The prescription does not specify how often the nystatin cream should be applied. This is a critical piece of information necessary for the safe and effective use of the medication, and the nurse should clarify it with the provider.
B. Concentration of the medication: The concentration of 100,000 units/g is a standard dosage for nystatin cream and does not require clarification.
C. Name of the medication: Nystatin cream is clearly identified in the prescription, so there is no ambiguity regarding the medication.
D. Route of administration: The prescription specifies that the cream should be applied to the affected area, indicating the topical route, which is clear and appropriate for nystatin cream.
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