NCLEX-PN
NCLEX Pharmacological and Parenteral Therapies Questions
Extract:
Question 1 of 5
Oral ranitidine 2 mg/kg twice daily is prescribed for the infant weighing 16 lb 8 oz. The medication is supplied as 15 mg/mL. How many milliliters should the nurse instruct the parent to withdraw in the syringe provided with the ranitidine to administer one dose?
Correct Answer: 1
Rationale: Use a proportion formula to calculate the dose. First determine the dose for the child's weight: 16 lb 8 ounces = 16.5 lb/ 2.2 lb/kg = 7.5 kg. Next determine the prescribed dose: 7.5 kg x 2 mg = 15 mg. The medication is supplied in 15 mg per 1 mL. The dose to administer is 1 mL of ranitidine (Zantac).
Question 2 of 5
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Question 3 of 5
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Question 4 of 5
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Question 5 of 5
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