Question

You are asked to prepare a solution that contains potassium chloride (KCl) at 20 mEq/L. How much of a 2 mEq/ml solution of KCl should be added to a 500 ml of fluids to comply with this order?

a. 5 ml

b. 10 ml

c. 20 ml

d. 30 ml

A 10 kg dog needs nitroprusside (50 mg/2 ml) administered as a CRI at 3 mcg/kg/min given at 5 ml/hr. A total volume of 50 ml will be prepared. How long will the CRI last?

a. 4 hours

b. 6 hours

c. 8 hours

d. 10 hours

A 39 kg dog needs a metoclopramide (5 mg/ml) CRI at 3 mg/kg/day. You have a 1L bag of Lactated Ringer's solution. The fluid rate is 5 ml/kg/hr. How many milliliters of metoclopramide should be added to the bag?

a. 25 ml

b. 20 ml

c. 15 ml

d. 5 ml

You need a 60 ml of 0.15% chlorhexidine solution. How many milliliters of 4% chlorhexidine will be needed?

a. 0.60 ml

b. 6 ml

c. 2.25 ml

d. 36 ml

A 18 kg dog needs an FLK (fentanyl, lidocaine, ketamine) CRI. All three of these medications will be added into the same 500 ml bag of fluids. The lidocaine 2% CRI is 0.04 mg/kg/min at 15 ml/hr. How many milliliters of lidocaine should be added to the bag?

a. 24 ml

b. 12 ml

c. 3.3 ml

d. 1.2 ml

Answer 1

No.1.

You are asked to prepare a solution that contains potassium chloride (KCl) at 20 mEq/L.

That means 20 mEq in1000 ml

In 500 ml of fluids we required

We have 2 mEq/ml solution

So,

5 ml of 2 mEq/ml solution of KCL should be added to 500 ml.

Answer - a. 5 ml

No.2.

A 10 kg dog needs nitroprusside (50 mg/2 ml) administered as a CRI at 3 mcg/kg/min given at 5 ml/hr

A total volume of 50 ml will be prepared.

So,

The CRI will last for 10 hours.

Answer - d. 10 hours.

No.3.

A 39 kg dog needs a metoclopramide (5 mg/ml) CRI at 3 mg/kg/day.

So the dog required

Available metoclopramide 5 mg/ml

So

Here the dog needs 23.4 ml of metoclopramide in a day.

You have a 1L bag of Lactated Ringer's solution. The fluid rate is 5 ml/kg/hr.

So the total fluid required,

So in a day the dog needs,

So you need to add 23.4 ml of metoclopramide in 4680 ml of fluid in a day.

So in 1000 ml you have to add

5 ml of metoclopramide should be added to the bag.

Answer - d. 5 ml

No.4.

You need a 60 ml of 0.15 % Chlorhexidine solution

That indicates the total solution contains

You have 4 % of chlorhexidine solution

Lets assume you need "x" ml of Solution

It means

So, "x" ml =

"x" ml  

Answer - You need 2.25 ml of 4 % solution.