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Calculate the flow rate in mL/hr. (The equipment used is programmable in whole mL/hr).

Order: 100 mL 0.45% NS in 45 minutes by infusion pump.

Calculate the rate in mL/hr.

A.

145 mL/hr

B.

133 mL/hr

C.

125 mL/hr

D.

135 mL/hr

Answer and Explanation

The Correct Answer is B

To solve this problem, we need to use the formula:

Rate (mL/hr) = Volume (mL) / Time (hr)

Plugging in the given values, we get:

Rate (mL/hr) = 100 mL / 0.75 hr

Rate (mL/hr) = 133.33 mL/hr

However, this is not the final answer because the equipment used is programmable in whole mL/hr, which means we need to round the rate to the nearest whole number. Therefore, we need to apply the rounding rule: if the decimal part is 0.5 or more, round up; if the decimal part is less than 0.5, round down. In this case, the decimal part is 0.33, which is less than 0.5, so we round down. This gives:

Rounded rate (mL/hr) = 133 mL/hr

Therefore, the correct flow rate is 133 mL/hr.


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Related Questions

Correct Answer is B

Explanation

To calculate the dosage, we need to use the formula:

Dosage (mL) = Ordered dose (mg) / Available dose (mg/mL)

Plugging in the given values, we get:

Dosage (mL) = 175 mg / 25 mg/mL

Simplifying, we get:

Dosage (mL) = 7 mL

Therefore, the dosage is 7 mL.

Correct Answer is C

Explanation

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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