Nurs 2258-4331 Paediatrics Proctored Exam
Calculation
Ordered: Metronidazole 140 mg IV to be infused over 60 minutes. Available: Metronidazole in a syringe pre-mixed with normal saline. Correct concentration: 5 mg/mL. Patient's weight: 43 lb. Based on the correct concentration, the pre-mixed syringe contains how many mL? Round to the nearest whole number.
mL
Explanation & Rationale
Step-by-step calculation: Step 1 is: Identify the ordered dose = 140 mg Step 2 is: Identify the concentration = 5 mg ÷ 1 mL Step 3 is: Calculate volume required using (140 mg ÷ 5 mg) 140 ÷ 5 = 28 Step 4 is: Final answer = 28 mL Rounded to the nearest whole number = 28 mL
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