PTCB Conversions & Formulas

15 gtts = ?mL

1 mL

1 tsp = ? mL

5 mL

1 Tbsp = ? mL

15 mL

1 fl oz = ? mL

= 29.57mL; 30 mL

1 fl oz= ? Tbsp

2 Tbsp

1 cup =? fl oz =? mL

1 cup = 8fl oz= 240mL

1 pint = ? fl oz = ? mL

= 16 fl oz = 473 ml

1 quart = ? pints = ? mL

= 2 pints = 946mL

1 gallon = ? quarts = ? mL

= 4 quarts = 3,785mL

1 grain = ? mg

64.8 mg

1 kg = ?lbs

2.2 lbs

1 oz = ? grams (weight)

28.4 grams

1 lb = ?g = ?oz

454g = 16 oz

1 inch = ? cm

2.54 cm

12 inches= ? foot

1 foot

3 feet= ? yards

1 yard

1 mile= ? yards

1760 yards

1 meter = ? cm

100 cm

flow rate formula

= ml of solution/ hours or mins

drip rate formula

= gtts of IV solution/min

Dilution & Concentration Formula

Q1 x C1 = Q2 x C2

Percent strength w/v formula

% w/v = g/100mL

Percent strength v/v formula

% v/v = mL/100mL

Percent strength w/w formula

% w/w = g/100g

Drops/ mL to Drops/ min

= (#drops/mL) x (mL/hr) x (hr/60min)

Ratio to % percent strength = ?

(Ratio) = x/100

Percent strength to Ratio =?

(%) = 1/x

Dont remove the %

Fahrenheit to Celsius
Algebra Shortcut?

= (F-32)/1.8

5F = 9C + 160

Celsius to Fahrenheit

Algebra Shortcut?

= (C x 1.8) + 32

5F = 9C + 160

Clark’s Rule Child’s Dose

= (weight of child in lbs/150lbs)

Young’s Rule Child’s Dose

= (age of child in years / (age of child in years + 12) x average adult dose

BSA Child’s Dose

= (child BSA/average adult BSA) x adult dose

• Average adult BSA = 1.6 m²

BSA Formula DuBois

BSA Monstellar Formula

Determining the Amount of Water needed for a Certain Concentration

Final Volume (FV)= volume of diluent (D) + powder volume (PV)

Roman Numeral 9

IX

Roman Numeral 10

X

Roman Numeral 50

L

Roman Numeral 100

C

Roman Numeral D

500

Roman Numeral M

1,000