ATI RN
Mental Health ATI RN Questions
Extract:
Question 1 of 5
A nurse is preparing to administer methylnaltrexone 12 mg subcutaneously to a client who has opioid-induced constipation. Available is methylnaltrexone 8 mg/0.4 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: 0.6 mL
Rationale:
Step 1: Determine dosage per mL: 8 mg ÷ 0.4 mL = 20 mg/mL.
Step 2: Calculate volume for 12 mg: 12 mg ÷ 20 mg/mL = 0.6 mL. The nurse should administer 0.6 mL.
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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