ATI LPN
ATI LPN Pharmacology 2023 Questions
Extract:
Question 1 of 5
A nurse is preparing to administer enoxaparin 5 mg/kg subcutaneous daily to a client who has deep-vein thrombosis. The client weighs 152 lb. Available is 120 mg/0.8 mL prefilled syringe. Calculate the dosage in mL that the nurse should administer. (Round the answer to the nearest tenth. Use a leading zero if applicable. Do not use a trailing zero.)
Correct Answer: A
Rationale:
To calculate the dosage in mL, first convert the client's weight from pounds to kilograms: 152 lb ÷ 2.2 = 69.1 kg.
Then, multiply the weight by the dose (5 mg/kg): 69.1 kg x 5 mg/kg = 345.5 mg. Next, determine the volume needed by dividing the dose by the concentration (120 mg/0.8 mL): 345.5 mg ÷ 120 mg/0.8 mL = 2.3 mL. Round to the nearest tenth, giving 2.3 mL. The correct answer is A (0.7 mL) because 2.3 mL is incorrectly rounded. Other choices are incorrect due to incorrect calculations or rounding.
Question 2 of 5
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Question 3 of 5
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Question 5 of 5
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