pharmacokinetic equations

If 180 mg of a drug are administered intravenously and the resultant drug plasma concentration is determined to be 76 μg/100mL, what is the apparent volume of distribution of the drug?

If 160 mg of a drug are administered intravenously and the resultant drug plasma concentration is determined to be 27 μg/100mL, what is the apparent volume of distribution of the drug?

Four hours after intravenous administration of a drug, a patient was found to have a drug plasma concentration of 60 μg/mL. Assuming the apparent volume of distribution is 10% of an average body weight of 90 kg, calculate the total amount of drug present in body fluids four hours after administration.

A drug has an elimination rate constant of 0.277 hr-1. Its elimination half-life is:

Assuming complete absorption and an elimination half-life of 4 hours, how many mg of a drug will remain in the body 25 hours after administering a 100 mg dose?

A drug has an elimination rate constant of 0.510 hr-1. Its elimination half-life is:

The area under the serum concentration-time curves (AUC) were measured after single doses of 10 mg of a new antihypertensive drug were administered in hypertensive patients.

What is the plasma concentration of a drug when 200 mg is given by IV bolus to a 65kg patient if her volume of distribution is 16 L/kg.

What is the plasma concentration of a drug when 900 mg is given by IV bolus to a 100kg patient if her volume of distribution is 7.7L/kg.

What is the plasma concentration of a drug when 700 mg is given by IV bolus to a 220lb patient if her volume of distribution is 35 L/kg. (Please note that 1kg = 2.2lb)