Question

In acute hypersensitivity reactions, 0.5 mL of a 1:1000 (w/v) solution of epinephrine may be administered subcutaneously or intramuscularly. W/V solution units are grams per mL. Calculate the milligrams of epinephrine given.

Answer 1

Answer:

The 0.5 milligrams of epinephrine is given.

Explanation:

The ratio of mass of solute to total volume of the epinephrine solution = w/v (g/mL)

w/v = 1:1000=$\frac{1}{1000} g/mL=0.001 g/mL$

Volume of the solution of epinephrine  = 0.5 mL

Mass of solute in  0.5 mL of epinephrine  :m

$\frac{m}{0.5 mL}=0.001 g/mL$

m = 0.0005 g

1 g = 1000 mg

m = 0.5 mg

The 0.5 milligrams of epinephrine is given.