Quiz on Basic Principles of Drug Action and Drug Interaction

What are receptors?

• Molecules that bind to specific substances

• Drugs that stimulate a response

• Enzymes that metabolize drugs

• Cells that absorb drugs

What is an agonist?

• A drug that inhibits other responses

• A partial stimulant

• A substance that stimulates a response

• A substance that does not stimulate a response

Which of the following routes of drug administration is enteral?

• Intramuscular

• Sublingual

• Intravenous

• Rectal

What does pharmacokinetics refer to?

• The drug's effect on the body

• The chemical structure of the drug

• The drug's interaction with receptors

• What the body does to the drug

What is the first step in pharmacokinetics?

• Distribution

• Metabolism

• Absorption

• Liberation

Which factor does NOT affect the rate of absorption?

• Route of administration

• Blood flow through tissue

• Drug solubility

• Patient's age

What is the primary site of drug metabolism in the body?

• Liver

• Kidneys

• Lungs

• Skin

Which of the following is a factor affecting drug distribution?

• Lipid solubility

• Patient's diet

• Time of administration

• Drug color

What is the effect of cooling the area of injection?

• Decreases absorption rate

• No effect on absorption

• Increases absorption rate

• Increases pain at the site

What does the term 'liberation' refer to in pharmacokinetics?

• The elimination of drug from the body

• The distribution of drug in the body

• The release of active drug from dosage form

• The process of drug absorption