Drug Calculations made easy for Nurses

drug-calculation-made-easy-for-nursesMost of the people who has chosen nursing as his or her profession because of two reasons ie Some of them thought that Nursing consists of pure Biology and there will be no need of studying any Mathematics. The other people? Obviously chose nursing without even knowing what it is? This article is for those people in nursing who are weaker at Maths but don’t want to miss questions from Drug Calculation.

DRUG CALCULATION GUIDE FOR NURSES WITH MCQ’S

First of all we will just look at the important formulas used for drug calculation by nurses

1. When calculating how much of a drug is required, working with the following formula helps the accuracy of the calculation.

drug calculation 1

2. How to find concentration of solution in mg/ml?

drug calculation 2

3. How to calculate infusion rate in mg/minute?

Infusion rate in mg/minute = { (mg of drug/ml of solution) x flow rate (ml/hour) }/60 minutes

4. How to calculate infusion rate in ml/hour?

Infusion rate in ml/hour = ml of solution/60 minutes

5. How to calculate infusion rate in drops/minute?

Infusion rate in drops/minute =[ml of solution/time in minutes] x drop factor

Temperature Conversions

This is another area where nurses tend to lose marks in competitive exams.

These are the formulas you have to keep in mind

To convert Celsius to Farenheit

Use the following Equation

[C x 9/5] + 32 = F

To convert Farenheit to Celsius

[F – 32] x 5/9 = C

Metric Measures

Solids

1 milligram (mg) = 1,000 micrograms (mcg)

1 gram (g) = 1,000 mg

1 Kilogram (kg) = 1,000 g

Liquids

1 milliliter (ml) = 1 cubic centimeter (cc)

1 ml = 1,ooo microliters (mcl)

1 cc = 1,000 mcl

1 liter (L) = 1,000 ml

1 L = 1,000 cc

Household to metric equivalents

1 teaspoon (tsp) = 5 ml

1 tablespoon (tbs) = 15 ml

1 ounce (oz) = 30 ml

2 tbs = 30 ml

1 oz = 30 g

1 pound (lb) = 454 g

2.2 lb = 1 kg

1 inch = 2.54 centimeters (cm)

drug calculation 3

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