CALCULATE FLOW RATE IN DROPS PER MINUTE:
Order: Levaquin 500 mg IVPB in 100 mL 0.9% NS q12h over 1 hr.
Drop factor: 10 gtt/mL
Determine rate in gtt/min.
16 gtt/min
18 gtt/min
17 gtt/min
20 gtt/min
The Correct Answer is C
To solve this problem, we need to find the infusion rate in ml/min by dividing the volume of the solution by the duration of the infusion. In this case, the infusion rate is:
100 ml / 60 min = 1.67 ml/min
Then, we need to multiply the infusion rate by the drop factor to find the flow rate in gtt/min. The drop factor is given as 10 gtt/ml. Therefore, the flow rate is:
1.67 ml/min * 10 gtt/ml = 16.7 gtt/min
However, since we cannot administer partial drops, we need to round the answer to the nearest whole number. The closest whole number to 16.7 gtt/min is 17 gtt/min, so we round up. Therefore, the flow rate in gtt/min is 17 gtt/min.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
To solve this problem using the ratio and proportion method, we must set up a proportion with the ordered dose on one side and the available dose on the other. Then we cross-multiply and solve for the unknown quantity, which is the volume of heparin to be administered.
The proportion is:
17,000 units / x ml = 20,000 units / 1 ml Cross-multiplying gives:
17,000 * 1 = 20,000 * x
Solving for x gives:
x = 17,000 / 20,000
x = 0.85 ml
Therefore, the volume of heparin to be administered is 0.85 ml.
Correct Answer is A
Explanation
To calculate the dosage using the ratio and proportion method, we need to set up a proportion with the ordered dose and the available dose as follows:
Ordered dose (units) / Dosage (mL) = Available dose (units) / Available volume (mL)
Plugging in the given values, we get:
8,500 units / Dosage (mL) = 50,000 units / 5 mL
Cross-multiplying, we get:
50,000 units x Dosage (mL) = 8,500 units x 5 mL
Solving for Dosage (mL), we get:
Dosage (mL) = (8,500 units x 5 mL) / 50,000 units
Simplifying, we get:
Dosage (mL) = 42,500 mL / 50,000
Therefore, the dosage is 0.85 mL.
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