HOSA Flashcards
Basic dosage calculation formula
(desired dose ÷ amount on hand) × volume = dose [units/mL]
IV drop rate formula
(volume[mL] ÷ time[min]) × drop factor [gtts/ml] = flow rate [gtts/min]
IV mL rate formula
(volume[mL] ÷ time[hr]) = flow rate [mL/hr]
Body Surface Area (BSA) calculation (English)
√(height [in] × weight [lb]) ÷ 3131
1 kilogram
1000 grams
Dosage calculation by weight
weight (kg) × dosage (kg) = required dosage
Amount in IV fluid
(concentration % ÷ 100) × volume [mL] = dosage amount [g]
Body Surface Area (BSA) calculation (metric)
√(height [cm] × weight [kg]) ÷ 3600
Normal Saline (NS)
0.9% NaCl
Degree conversion (Celsius)
°C=(°F-32) × 5/9
Degree conversion (Fahrenheit)
°F=(°C) × 9/5 + 32
1 gram
1000 milligrams
1 milligram
1000 micrograms
1 kilogram (weight)
2.2 pounds
1 pound (weight)
16 ounces
1 cubic meter
1000 cubic decimeters
1 cubic decimeter
1000 cubic centimeters
1 cubic centimeter
1000 cubic millimeters
1 liter
1000 milliliters
1 deciliter
10 centiliters
1 liter (alternative)
10 deciliters
1 cubic centimeter
1 milliliter
240 milliliters
1 cup / 8 ounces / 16 tbsp
30 milliliters
1 ounce / 2 tbsp / 6 tsp
