A nurse is preparing to administer meperidine 125 mg IM stat. Available is meperidine injection 75 mg/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.)
The Correct Answer is ["1.7"]
Ordered dose: 125 mg
Available concentration: 75 mg/mL
Step 1: Use the formula
mL to administer = Desired dose ÷ Available dose per mL
mL to administer = 125 ÷ 75 ≈ 1.6667
Step 2: Round to the nearest tenth
1.6667 → 1.7 mL
Final Answer: 1.7 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. ADHD diagnosis requires that symptoms of inattention, hyperactivity, or impulsivity be present in more than one setting (e.g., home, school, social situations) and persist for at least six months, ensuring that behaviors are consistent and not situational.
B. Good academic performance does not rule out ADHD; some adolescents may compensate for symptoms through intelligence, support, or coping strategies, so ADHD can still be present despite satisfactory grades.
C. Focusing only on classroom behavior is insufficient, as ADHD symptoms must be evident across multiple settings to meet diagnostic criteria.
D. While hyperactivity may decrease with age, it remains a relevant criterion for diagnosis. Symptoms may manifest as restlessness or difficulty engaging in quiet activities rather than overt hyperactivity.
Correct Answer is ["200"]
Explanation
Step 1: Identify total volume and infusion time
Total volume = 50 mL
Infusion time = 15 minutes
Step 2: Use the formula for IV flow rate
Flow rate (mL/hr) = (Total volume ÷ Time in minutes) × 60
Flow rate = (50 ÷ 15) × 60
Flow rate ≈ 3.333 × 60 ≈ 200 mL/hr
Final Answer: 200 mL/hr
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