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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.75"]
Explanation
Step 1 is to convert mcg to mg. This is done by dividing the total amount of medication (750 mcg) by 1000 (since 1 mg = 1000 mcg). So, 750 mcg ÷ 1000 = 0.75 mg.
Correct Answer is ["2"]
Explanation
Step 1 is to determine the amount of medication in 1 mL after reconstitution. This is calculated by dividing the total available medication (1000 mg) by the total volume after reconstitution (3.4 mL):
1000 mg ÷ 3.4 mL = 294.12 mg/mL
Step 2 is to determine how many mL are needed to obtain 500 mg. This is done by dividing the required dose (500 mg) by the concentration (294.12 mg/mL):
500 mg ÷ 294.12 mg/mL = 1.7 mL
Rounding to the nearest whole number, the correct amount to administer is 2 mL.
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