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.

Answer and Explanation

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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Free Nursing Study Resources

Correct Answer is ["50"]

Explanation

Step 1 is to convert the client’s weight from pounds to kilograms, since the dosage is prescribed in mg/kg. Given that 1 kg = 2.2 lb, we calculate:

219 lb ÷ 2.2 = 99.5 kg

Rounding to the nearest whole number, the client’s weight is 100 kg.

Step 2 is to determine the total dosage of amikacin required. The prescribed dosage is 5 mg/kg, so we calculate:

5 mg/kg × 100 kg = 500 mg

Step 3 is to determine the volume to administer. The available concentration of amikacin is 10 mg/mL, so we divide:

500 mg ÷ 10 mg/mL = 50 mL

Thus, the correct amount to administer is 50 mL.

Correct Answer is ["0.5"]

Explanation

Step 1 is to determine the amount of medication needed. This is done by dividing the desired dose by the available dose. So, we have 12.5 mg ÷ 25 mg/mL = 0.5 mL.

So, the correct answer is 0.5 mL.

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Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer amikacin 5 mg/kg via intermittent IV bolus to a client who weighs 219 lb. Available is amikacin 10 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["50"]

Explanation

A nurse is preparing to administer promethazine 12.5 mg IM. Available is promethazine 25 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["0.5"]

Explanation

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A nurse is preparing to administer lorazepam 0.05 mg/kg via IV bolus to a client who weighs 175 lb. Available is lorazepam 2 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)