Order: ceftriaxone 2 g in 100 mL of 0.9% NaCI (normal saline solution) over 30 minutes
Available: Macro drip set: 15 gtt/mL
Calculate the IV flow rate in gtt/min.
50 gtt/min
15 gtt/min
10 gtt/min
100 gtt/min
The Correct Answer is A
1. Determine the total volume to be infused: 100 mL
2. Calculate the infusion time in minutes: 30 minutes
3. Calculate the drip rate (gtt/min):
Drip rate = (Total volume / Infusion time) x Drop factor
Drip rate = (100 mL / 30 minutes) x 15 gtt/mL
Drip rate = 50 gtt/min
Therefore, the correct answer is 50 gtt/min
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Given:
Ordered dose of acetaminophen: 10 mg/kg
Child's weight: 22 lb
Concentration of acetaminophen liquid: 160 mg/5 mL
Step 1: Convert child's weight from pounds to kilograms:
1 pound (lb) = 0.453592 kilograms (kg)
Child's weight in kg = 22 lbs x 0.453592 kg/lb = 9.976824 kg
Step 2: Calculate the total dose of acetaminophen:
Total dose (mg) = Ordered dose (mg/kg) x Child's weight (kg)
Total dose (mg) = 10 mg/kg x 9.976824 kg
Total dose (mg) = 99.76824 mg
Step 3: Calculate the volume to be administered:
Volume (mL) = Total dose (mg) / Concentration (mg/mL)
Volume (mL) = 99.76824 mg / 160 mg/5 mL
Volume (mL) = 99.76824 mg x (5 mL / 160 mg)
Volume (mL) = 3.1177575 mL
Step 4: Round to the nearest tenth:
Volume (mL) ≈ 3.1 mL
Correct Answer is D
Explanation
Rationale:
Ordered Dose:
The prescription is for 12 mg of Celestone Soluspan (betamethasone) IM every 24 hours for 2 doses.
Available Dose (from label): The vial contains 6 mg/mL.
Dosage Calculation: Using the formula:
Volumetoadminister(mL) = Availableconcentration(mg/mL) / Ordereddose(mg)
Volumetoadminister = 12mg / 6mg/mL = 2 mL
Administration Route:
The order specifies IM (intramuscular) administration, aligning with the label instructions.
Thus, 2 mL IM is the correct dosage to administer.
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