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CALCULATE FLOW RATE IN DROPS PER MINUTE:
Order: 1 L of 0.9% NS to infuse at 50 mL/hr.

Drop factor: 15 gtt/mL.

A.

12 gtt/min

B.

20 gtt/min

C.

13 gtt/min

D.

15 gtt/min

Answer and Explanation

The Correct Answer is D

To calculate the flow rate in drops per minute, we can use the following formula:

Drops per minute = (Flow rate in mL/hour x Drop factor) / 60

Given that we have an order of 1 L of 0.9% NS to infuse at 50 mL/hr and a drop factor of 15 gtt/mL, we can calculate the flow rate as follows:

Drops per minute = (50 x 15) / 60 = **12.5 gtt/min**

Therefore, the correct answer is **d) 15 gtt/min**.


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Related Questions

Correct Answer is D

Explanation

To calculate the dosage using the ratio and proportion method, we can use the following formula: Dose on hand / Quantity on hand = Desired dose / X

Given that we have an order of Cialis tablets 15 mg p.o. daily and an available Cialis 5 mg scored tablet, we can calculate the number of tablets required as follows:

5 mg / 1 tablet = 15 mg / X

Cross-multiplying, we get:

5X = 15

Solving for X, we get:

X = 3

Therefore, the number of tablets required is:

Desired dose / Dose on hand = 15 mg / 5 mg = **3 tablets**

Since the available tablet is scored and has a strength of 5 mg, we can divide each tablet into two equal parts of 2.5 mg each. Therefore, the correct answer is **d) 1.5 tablets**.

Correct Answer is C

Explanation

Step 1: Identify the given information

  • Ordered dose = 6,000 units
  • Available concentration = 5,000 units per 1 mL

Step 2: Set up the ratio and proportion equation

  • 5,000 units ÷ 1 mL = 6,000 units ÷ X mL

Step 3: Solve for X

  • (6,000 × 1) ÷ 5,000 = X
  • 6,000 ÷ 5,000 = 1.2 mL

Step 4: Round to the nearest tenth

  • 1.2 mL (already rounded)

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