Order: lidocaine 2 g in 250 mL of D5W at 30 mL/h
What is the flow rate?
250 mL/hr
30 mL/hr
15 mL/hr
150 mL/hr
150 mL/hr
The Correct Answer is B
The order directly states that the infusion rate is 30 mL/hr.
The information about the amount of Lidocaine (2 g) and the volume of D5W (250 mL) is irrelevant to determining the flow rate in this case.
The flow rate is already specified as 30 mL/hr in the order.
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Related Questions
Correct Answer is A
Explanation
Given:
Infusion rate: 3 mL/hr
Concentration of Nitroglycerin: 50 mg in 250 mL D5W (200 mcg/mL)
Step 1: Calculate the dose in mg/hr:
Dose (mg/hr) = Infusion rate (mL/hr) x Concentration (mg/mL)
Dose (mg/hr) = 3 mL/hr x 200 mcg/mL
Dose (mg/hr) = 600 mcg/hr
Correct Answer is D
Explanation
Ordered dose of 0.9% Sodium Chloride: 20 mL/kg
Child's weight: 55 lbs
Infusion time: 6 hours
Step 1: Convert child's weight from pounds to kilograms:
1 pound (lb) = 0.453592 kilograms (kg)
Child's weight in kg = 55 lbs x 0.453592 kg/lb = 24.94756 kg
Step 2: Calculate the total volume of 0.9% Sodium Chloride:
Total volume (mL) = Ordered dose (mL/kg) x Child's weight (kg)
Total volume (mL) = 20 mL/kg x 24.94756 kg
Total volume (mL) = 498.9512 mL
Step 3: Calculate the infusion rate in mL/hr:
Infusion rate (mL/hr) = Total volume (mL) / Infusion time (hr)
Infusion rate (mL/hr) = 498.9512 mL / 6 hr
Infusion rate (mL/hr) = 83.15853333 mL/hr
Step 4: Round to the nearest whole number:
Infusion rate (mL/hr) ≈ 83 mL/hr
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