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A nurse is preparing to administer cefazolin IVPB over 20 min. Available is cefazolin 1 g in 100 mL of dextrose 5% in water (DSW). The drop factor of the manual IV tubing is 15gtt/mL. The nurse should set the 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 ["75"]

Step-by-Step Calculation

Understanding the Problem

We need to administer 100 mL of cefazolin over 20 minutes.

The drop factor of the tubing is 15 gtt/mL.

We need to calculate the drip rate in gtt/min.

Calculations

Calculate the infusion rate in mL/min:

Infusion rate (mL/min) = Total volume (mL) / Infusion time (min)

Infusion rate = 100 mL / 20 min = 5 mL/min

Calculate the drip rate:

Drip rate (gtt/min) = Infusion rate (mL/min) X Drop factor (gtt/mL)

Drip rate = 5 mL/min X 15 gtt/mL = 75 gtt/min

The nurse should set the IV infusion to deliver 75 gtt/min.


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Related Questions

Correct Answer is ["325"]

Explanation

The client is prescribed 5,200 mL of fluid over the first 24 hours. To find out how many mL/hr the IV pump should be set to infuse for the first 8 hours, we can divide the total volume by the total time.

Let’s calculate:

Rate=TotalVolume/TotalTime ​

Substituting the given values:

Rate = 5200mL /24hr ​≈ 216.67mL/hr

However, this is the rate for the entire 24 hours. The question asks for the rate for the first 8 hours. It’s common in burn injury treatment to administer half of the total 24-hour fluid volume in the first 8 hours. So, we need to calculate half of the total volume and then find the rate for the first 8 hours:

HalfofTotalVolume = 5200mL/2​ = 2600mL

Rateforfirst8hours = HalfofTotalVolume / 8hr ​

Substituting the given values:

Rateforfirst8hours = 2600mL/8hr ​= 325mL/hr

So, the nurse should set the IV pump to deliver 325 mL/hr for the first 8 hours.

Correct Answer is ["2525"]

Explanation

1. Calculate the total volume of the continuous IV infusion (Lactated Ringer's):

  • Rate of infusion: 150 mL/hr
  • Duration: 9 hr
  • Total volume from Lactated Ringer's = Rate × Duration
  • Total volume from Lactated Ringer's = 150 mL/hr × 9 hr = 1350 mL

2. Calculate the volume from the cefazolin IV intermittent bolus:

  • Volume of cefazolin bolus = 100 mL

3. Calculate the total volume from the packed RBCs:

  • Volume of first unit of packed RBCs = 275 mL
  • Volume of second unit of packed RBCs = 250 mL
  • Total volume from packed RBCs = 275 mL + 250 mL = 525 mL

4. Calculate the total volume from the two IV bolus infusions of 0.9% sodium chloride:

  • Volume of first bolus = 250 mL
  • Volume of second bolus = 250 mL
  • Total volume from sodium chloride boluses = 250 mL + 250 mL = 500 mL

5. Calculate the volume from the famotidine IV intermittent bolus:

  • Volume of famotidine bolus = 50 mL

6. Calculate the total intake by adding the volumes from all sources:

  • Total intake = (Volume from Lactated Ringer's) + (Volume from cefazolin bolus) + (Total volume from packed RBCs) + (Total volume from sodium chloride boluses) + (Volume from famotidine bolus)
  • Total intake = 1350 mL + 100 mL + 525 mL + 500 mL + 50 mL
  • Total intake = 2525 mL

Answer: The nurse should record a total intake of 2525 mL for the client over the past 9 hours.

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