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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 C

Explanation

Given:

Ordered dose of acetaminophen: 10 mg/kg

Child's weight: 22 lb

Concentration of acetaminophen liquid: 160 mg/5 mL

Step 1: Convert child's weight from pounds to kilograms:

1 pound (lb) = 0.453592 kilograms (kg)

Child's weight in kg = 22 lbs x 0.453592 kg/lb = 9.976824 kg

Step 2: Calculate the total dose of acetaminophen:

Total dose (mg) = Ordered dose (mg/kg) x Child's weight (kg)

Total dose (mg) = 10 mg/kg x 9.976824 kg

Total dose (mg) = 99.76824 mg

Step 3: Calculate the volume to be administered:

Volume (mL) = Total dose (mg) / Concentration (mg/mL)

Volume (mL) = 99.76824 mg / 160 mg/5 mL

Volume (mL) = 99.76824 mg x (5 mL / 160 mg)

Volume (mL) = 3.1177575 mL

Step 4: Round to the nearest tenth:

Volume (mL) ≈ 3.1 mL

Correct Answer is B

Explanation

Given:

Ordered dose of amoxicillin: 300 mg

Concentration of amoxicillin oral solution: 250 mg/5 mL

Step 1: Set up the proportion:

Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)

Step 2: Substitute the values:

300 mg / Volume = 250 mg/5 mL

Step 3: Solve for the unknown volume:

Volume = 300 mg / (250 mg/5 mL)

Volume = 300 mg x (5 mL / 250 mg)

Volume = 6 mL

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