CALCULATE FLOW RATE IN DROPS PER MINUTE:
Order: 1 L of 0.9% NS to infuse at 50 mL/hr.
Drop factor: 15 gtt/mL.
12 gtt/min
20 gtt/min
13 gtt/min
15 gtt/min
The Correct Answer is D
To calculate the flow rate in drops per minute, we can use the following formula:
Drops per minute = (Flow rate in mL/hour x Drop factor) / 60
Given that we have an order of 1 L of 0.9% NS to infuse at 50 mL/hr and a drop factor of 15 gtt/mL, we can calculate the flow rate as follows:
Drops per minute = (50 x 15) / 60 = **12.5 gtt/min**
Therefore, the correct answer is **d) 15 gtt/min**.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
To calculate the dosage using the ratio and proportion method, we can use the following formula: Order/Available = Dose/1 capsule
Where Order is 1.0 g p.o. BID and Available is Amoxil capsules labeled 250 mg per capsule. Substituting the values in the formula:
1.0 g p.o. BID / 250 mg per capsule = Dose / 1 capsule
Dose = (1.0 g p.o. BID x 1000 mg/g) / (250 mg per capsule x 2) Dose = 4 capsules
Explanation: The order is for 1.0 g p.o. BID which means that the patient needs to receive a total of 2 grams of Amoxil per day. Since each capsule contains 250 mg of Amoxil, we need to calculate how many capsules are required to achieve a total of 2 grams per day. Using the ratio and proportion method, we can calculate that 4 capsules are required to achieve a total of 2 grams per day.
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.
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