When referring to a concentration of a premixed solution, such as a vial, a prehospital provider is generally referring to:
a. The percentage of a concentration
b. The total amount of mass in the solution
c. The amount of milligrams or micrograms in one milliliter
d. The total amount of volume on hand
c
Rationale: a. When referring to a percentage, you are referring to the number of grams present in 100 mL.
b. The total amount of mass is a component of concentration, but needs to divided by the amount of solvent in order to simplify dosage calculations.
c. Correct.
d. The total amount of volume on hand is a component of concentration, but must be divided into the total solute to simplify dosage calculations.
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