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Order: Ampicillin 1 g is added to 50 mL DSW to infuse over 45 minutes. Drop factor: 10 gtt/mL. For IV reconstitute with 10 mL of diluent to get 1 g per 10 mL. (Consider the medication added in the volume of fluid.) Calculate the rate in gtt/min at which the should infuse

A.

18 gtt/min

B.

11 gtt/min

C.

15 gtt/min

D.

13 gtt/min

Answer and Explanation

The Correct Answer is D

Given:
Volume of fluid: 50 mL (DSW) + 10 mL (for reconstitution) = 60 mL
Infusion time: 45 minutes
Drop factor: 10 gtt/mL

Formula:
Flow rate (gtt/min) = (Volume (mL) / Time (min)) x Drop factor (gtt/mL)

Step 1: Calculate the infusion rate in mL/min:
Infusion rate (mL/min) = Volume (mL) / Time (min)
Infusion rate (mL/min) = 60 mL / 45 min
Infusion rate (mL/min) = 1.33 mL/min

Step 2: Calculate the flow rate in gtt/min:
Flow rate (gtt/min) = Infusion rate (mL/min) x Drop factor (gtt/mL)
Flow rate (gtt/min) = 1.33 mL/min x 10 gtt/mL
Flow rate (gtt/min) = 13.3 gtt/min

Step 3: Round to the nearest whole number:
Flow rate (gtt/min) ≈ 13 gtt/min
 


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Related Questions

Correct Answer is B

Explanation

Given:
Ordered dose of Diazepam: 4 mg
Concentration of Diazepam oral solution: 5 mg/5 mL

Step 1: Set up the proportion:
Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)

Step 2: Substitute the values:
4 mg / Volume = 5 mg/5 mL

Step 3: Solve for the unknown volume:
Volume = 4 mg / (5 mg/5 mL)
Volume = 4 mg x (5 mL/5 mg)
Volume = 4 mL

Correct Answer is D

Explanation

Given:

Volume of Glucerna 1.2: 237 mL

Desired concentration: 1/2 strength

Step 1: Determine the volume of Glucerna 1.2 needed for the half-strength solution:

Volume of Glucerna 1.2 for half-strength = Original volume / 2

Volume of Glucerna 1.2 for half-strength = 237 mL / 2

Volume of Glucerna 1.2 for half-strength = 118.5 mL

Step 2: Calculate the amount of water to be added:

Amount of water = Original volume - Volume of Glucerna 1.2 for half-strength

Amount of water = 237 mL - 118.5 mL

Amount of water = 118.5 mL

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