Calculations Flashcards
1 teaspoon
5 mL
1 tablespoon
15 mL
1 fl. oz.
30 mL
1 cup
8 oz
TO OUNCE
1 pint
16 oz
TO PINTS
1 quart
2 pints
TO QUARTS
1 gallon
4 quarts
1 kg
2.2 lbs
TO GRAMS
1 oz
28.4 g
1 lb
454 g, 16 oz
1 inch
2.54 cm
Monovalent Ions
1 mEq = 1 mmol
Divalent Ions
1 mEq = 0.5 mmol
1 grain
65 mg
Prednisone to Dexamethasone Equivalent
5 mg Pred (daily) = 0.75 mg Dex (daily)
Elemental iron and Calcium
20% Elemental Iron in Ferrous Sulfate
40% Elemental Ca in Calcium Carbonate
21% Elemental Ca in Calcium Citrate
Corrected Phenytoin Formula
Phenytoin (corr) = Total Phenytoin/ [(0.2 x Albumin) + 0.1]
% w/v
g/100mL
% v/v
mL/100mL
% w/w
g/100g
Osmolarity Formula
mOsmol/L = [weight (g/L)/MW (g/mol)] x # of particles x 1000
Isotonicity Calculation (E-Value Formula)
E = [58.5 x i] / [MW of drug x 1.8]
Moles Formula
mol = g/MW; mmol = mg/MW
Milliequivalence Formula
mEq = [mg x valence] / MW
Carbohydrates Calorie
Enteral = 4 kcal/g ; Parenteral = 3.5 kcal/g
Dextrose = 3.4 kcal/g
Glycerol/Glycerin = 4.3 kcal/g
Fat Calorie
Enteral = 9 kcal/g ; Parenteral = varies
10 % = 1.1 kcal/mL
20 % = 2 kcal/mL
30 % = 3 kcal/mL
Protein Calorie
Enteral or Parenteral = 4 kcal/g
Amino Acid (AA) = 4 kcal/g
How much elemental calcium is contained in Calcium Citrate
21%
How much elemental calcium is contained in Calcium Carbonate?
40%
