Pharmacy Calculations and Biostatistics Review - from kait

14 Q&A flashcards covering key conversion factors, concentration equations, and fundamental biostatistics formulas from the lecture notes.

How many milliliters (mL) are in one teaspoon (tsp)?

1 teaspoon = 5 mL

How many milliliters (mL) are in one tablespoon (Tbsp)?

1 tablespoon = 15 mL

How many teaspoons (tsp) are in one tablespoon (Tbsp)?

1 tablespoon = 3 teaspoons

How many milliliters (mL) are in one pint (pt)?

1 pint = 473 mL

How many pounds (lb) are in one kilogram (kg)?

1 kg = 2.2 pounds

How many centimeters (cm) are in one inch (in)?

1 inch = 2.54 cm

What equation is used to adjust concentrations when diluting or compounding solutions?

Q1 C1 = Q2 C2

In the alternative approach to alligation, what two equations relate quantities and concentrations?

Q1 C1 + Q2 C2 = Q3 C3 and Q1 + Q2 = Q3

How is Risk calculated for a study group?

Risk = (number of subjects with the event in the group) / (total number of subjects in the group)

How do you calculate Relative Risk (RR)?

RR = Risk in treatment group / Risk in control group

What are the two equivalent formulas for Relative Risk Reduction (RRR)?

RRR = 1 – RR OR RRR = (Risk in control – Risk in treatment) / Risk in control

How do you calculate Absolute Risk Reduction (ARR)?

ARR = Risk in control group – Risk in treatment group

How do you calculate Number Needed to Treat (NNT) or Number Needed to Harm (NNH)?

NNT or NNH = 1 / ARR (with ARR expressed as a decimal)

What is the formula for Odds Ratio (OR)?

OR = (odds of outcome in intervention group) / (odds of outcome in control group) = AD / BC