ATI RN
ATI RN Pharmacology 2019 Exam 6 Questions
Extract:
Question 1 of 5
A nurse is preparing to administer enoxaparin 1 mg/kg subcutaneously every 12 hr. The client's weight is 121 lb. Available is enoxaparin 60 mg/0.6 mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: B
Rationale:
To calculate the dose of enoxaparin for this client, first convert their weight from pounds to kilograms. 121 lb = 55 kg (1 kg = 2.2 lb).
Then, multiply the weight in kg by the prescribed dose of 1 mg/kg to get 55 mg per dose. Next, divide the prescribed dose of 55 mg by the concentration of enoxaparin (60 mg/0.6 mL) to find the volume needed per dose. 55 mg รท 60 mg = 0.9167 mL. Rounding to the nearest tenth gives 0.9 mL, which rounds up to 0.6 mL in this case.
Therefore, the correct answer is B: 0.6 mL. Other choices are incorrect because they do not match the calculated dose based on the client's weight and the concentration of the medication.
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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