Conversions and Calculations - QUICK NOTES

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Conversions and Calculations

Solids
1 milligram (mg) = 1,000 micrograms (mcg)
1 gram (g) = 1,000 mg1 kilogram (kg) = 1,000 g

Liquids

1 milliliter (ml) = 1 cubic centimeter (cc)
1 ml = 1,000 microliters (mcl)
1 cc = 1,000 mcl1 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 kg1 inch = 2.54 centimeters (cm)

Temperature Conversions

To convert Celsius (°C) to Farenheit (°F)
(°C x 9/5) + 32 = °F

To convert Farenheit (°F) to Celsius
(°C)(°F - 32) x 5/9 = °C

Calculating Dosages and Administration Rates

Concentration of solution in mg/ml = mg of drug/ml of solution

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

Concentration of solution in mcg/ml = mg of drug x 1,000/ ml of solution

Infusion rate in mcg/minute =mg of drug x 1,000/ml of solution x flow rate (ml/hour) / 60minutes / weight in kg

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

Infusion rate in gtt/minutes = ml of solution / time in minutes x drip factor (gtt/ml)

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