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Instructions: Calculate the flow rate in units/hr (Equipment used is programmable in whole units/hr). Order: 100,000 units of Heparin in 1,000 mL to infuse at 50 mL/hr. Calculate the rate in units/hr.

A.

5000 units/hr

B.

500 units/hr

C.

2000 units/hr

D.

2500 units/hr

E.

2500 units/hr

Answer and Explanation

The Correct Answer is A

To solve this problem, we need to find the concentration of heparin in the solution and then multiply it by the infusion rate. The concentration of heparin is the amount of heparin divided by the volume of the solution. In this case, the concentration is:

100,000 units / 1,000 ml = 100 units/ml

The infusion rate is given as 50 ml/hr. To find the flow rate in units/hr, we multiply the concentration by the infusion rate:

100 units/ml * 50 ml/hr = 5000 units/hr

Therefore, the flow rate in units/hr is 5000 units/hr.


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Related Questions

Correct Answer is C

Explanation

Step 1: Identify the given information

  • Ordered dose = 1.0 mg
  • Available concentration = 0.4 mg per 1 mL

Step 2: Use the ratio and proportion method
Required dose ÷ Available concentration = Volume to administer

Step 3: Plug in the values
= (1.0 ÷ 0.4)

Step 4: Solve step by step

  • 1.0 ÷ 0.4 = 2.5 mL

Step 5: Round to the nearest tenth

  • 2.5 mL (already rounded)

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**.

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