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A nurse is preparing to administer Ringer's lactate 500 mL IV bolus to infuse over 3 hr. The drop factor of the manual IV tubing is 20 gtt/mL. The nurse should set the manual IV infusion 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.)
Answer and Explanation

The Correct Answer is ["56"]

To calculate the infusion rate in gtt/min, we need to know the total number of drops (gtt) needed

for the entire infusion and the time it takes to complete the infusion. Given:

  • Ringer's lactate: 500 mL
  • Infusion time: 3 hours
  • Drop factor: 20 gtt/mL

First, let's calculate the total number of drops needed for the entire infusion: Total drops = Volume (mL) × Drop factor (gtt/mL)

Total drops = 500 mL × 20 gtt/mL Total drops = 10,000 gtt

Next, we need to determine the infusion rate in gtt/min. Since the infusion time is given in hours, we need to convert it to minutes:

Infusion time (min) = Infusion time (hours) × 60 min/hour Infusion time (min) = 3 hours × 60 min/hour

Infusion time (min) = 180 min

Now, we can calculate the infusion rate in gtt/min:

Infusion rate (gtt/min) = Total drops / Infusion time (min) Infusion rate (gtt/min) = 10,000 gtt / 180 min

Infusion rate (gtt/min) ≈ 55.6 gtt/min (Rounded off- 56 gtt/min)


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Related Questions

Correct Answer is A

No explanation

Correct Answer is ["125"]

Explanation

To determine the mL/hr rate for the IV pump, we need to calculate the infusion rate of the

potassium chloride solution. Given:

Potassium chloride concentration: 40 mEq in 500 mL Infusion rate: 10 mEq/hr

We can set up a proportion to find the mL/hr rate:

(40 mEq / 500 mL) = (10 mEq / x mL) Cross-multiplying the equation:

40 mEq * x mL = 500 mL * 10 mEq Simplifying:

40x = 5000

Dividing both sides by 40:

x = 5000 / 40

x ≈ 125

Therefore, the nurse should set the IV pump to deliver approximately 125 mL/hr.

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