A nurse is preparing to administer ceftriaxone 1 g by intermittent IV bolus over 45 min.
Available is ceftriaxone 1 g in 0.9% sodium chloride 100 mL. The drop factor on the manual IV tubing is 15 gtt/mL. The nurse should set the IV flow rate to deliver how many gtt/min? (Round the answer to the nearest whole number.
Use a leading zero if it applies.
Do not use a trailing zero.). gtt/min.
The Correct Answer is ["33"]
Step 1: Calculate the total volume to be administered. The total volume is the volume of the drug (ceftriaxone 1 g) which is in 0.9% sodium chloride 100 mL. So, the total volume is 100 mL.
Step 2: Calculate the total time for the drug to be administered. The drug is to be administered over 45 minutes.
Step 3: Calculate the flow rate in mL/min. The flow rate is the total volume divided by the total time. So, the flow rate is (100 mL ÷ 45 min) = 2.22 mL/min.
Step 4: Calculate the flow rate in gtt/min. The flow rate in gtt/min is the flow rate in mL/min multiplied by the drop factor. The drop factor is 15 gtt/mL. So, the flow rate in gtt/min is (2.22 mL/min × 15 gtt/mL) = 33.33 gtt/min.
Step 5: Round the answer to the nearest whole number. The flow rate in gtt/min rounded to the nearest whole number is 33 gtt/min.
So, the nurse should set the IV flow rate to deliver 33 gtt/min.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1.5 mL"]
Explanation
Step 1 is to calculate the volume to administer using the formula: dose (mg) ÷ concentration (mg/mL). So, 1.5 mg ÷ 1 mg/mL = 1.5 mL. Rounding off to the nearest tenth, the nurse should administer 1.5 mL of oxymorphone.
Correct Answer is ["57 mL"]
Explanation
Step 1 is to convert the client’s weight from pounds to kilograms. We know that 1 kg is approximately 2.2 lb. So, the client’s weight in kg is 178 lb ÷ 2.2 lb/kg = 80.91 kg. Step 2 is to calculate the total dose of acetylcysteine. The total dose is 140 mg/kg × 80.91 kg = 11327.4 mg. Step 3 is to calculate the volume to administer. The volume is 11327.4 mg ÷ 200 mg/mL = 56.637 mL.
So, the correct answer is 57 mL after rounding to the nearest whole number.
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