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Order: ceftriaxone 2 g in 100 mL of 0.9% NaCI (normal saline solution) over 30 minutes

Available: Macro drip set: 15 gtt/mL

Calculate the IV flow rate in gtt/min.

A.

50 gtt/min

B.

15 gtt/min

C.

10 gtt/min

D.

100 gtt/min

Answer and Explanation

The Correct Answer is A

1. Determine the total volume to be infused: 100 mL

2. Calculate the infusion time in minutes: 30 minutes

3. Calculate the drip rate (gtt/min):

Drip rate = (Total volume / Infusion time) x Drop factor

Drip rate = (100 mL / 30 minutes) x 15 gtt/mL

Drip rate = 50 gtt/min

Therefore, the correct answer is 50 gtt/min


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Related Questions

Correct Answer is D

Explanation

1. Convert patient weight from pounds to kilograms:

Patient weight (kg) = 152 lb x 0.453592 kg/lb = 68.94 kg

2. Calculate the desired dose in mcg/min:

Desired dose (mcg/min) = 5 mcg/kg/min x 68.94 kg = 344.7 mcg/min

3. Convert mcg/min to mg/min:

Desired dose (mg/min) = 344.7 mcg/min / 1000 mcg/mg = 0.3447 mg/min

4. Calculate the concentration of dobutamine in the solution:

Concentration (mg/mL) = 500 mg / 250 mL = 2 mg/mL

5. Calculate the flow rate in mL/min:

Flow rate (mL/min) = Desired dose (mg/min) / Concentration (mg/mL)

Flow rate (mL/min) = 0.3447 mg/min / 2 mg/mL = 0.17235 mL/min

6. Calculate the flow rate in mL/hr:

Flow rate (mL/hr) = 0.17235 mL/min x 60 min/hr = 10.341 mL/hr

7. Round to the nearest tenth:

Flow rate (mL/hr) = 10.3 mL/hr

Therefore, the correct answer is 10.4 mL/hr

Correct Answer is D

Explanation

Convert ounces to millilitres (1 oz = 29.5735 mL):

6oz×29.5735mL/oz=177.441mL6

Calculate the frequency of doses per day:

The patient receives a dose every 4 hours, so in 24 hours, the number of doses is:

24hours/4hours/dose=6doses

Calculate the total volume for all doses:

177.441mL/dose×6doses=1064.646mL

Rounding to the nearest whole number=1080 mL

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