Quiz: Pharmacology - Drug terms and definitions

1

Onset of action refers to:
- Time during which the drug is present in a concentration long enough to produce a response
- Time needed after the drug administration to reach a concentration that produces a response
- Time needed for the elimination processes to reduce the blood concentration of the drug by half
- Amount that is present in the plasma or blood at any time
2

If plasma level is 500 microgram/L at a certain time, and level drops to 250 microgram/L after 2 hours, t 1/2 is _ hours
- 1
- 2
- 3
- 4
3

Peak effect is:
- Time during which the drug is present in a concentration long enough to produce a response
- Time needed after the drug administration to reach a concentration that produces a response
- Time needed for the drug to reach its highest effective concentration (plasma level)
- Amount that is present in the plasma or blood at any time
4

Steady state level occurs after _ half lives have passed
- 1
- 2
- 3
- 4
5

Which of the following is not a regulatory protein used a drug target:
- Receptors
- Ion channels
- Carrier molecules and/or transporters
- Hormones
- Enzymes
6

An agonist is defined as:
- Any substance (natural or synthetic) that produces a biological effect (initiate changes in cell function) by stimulating (activating) receptor
- Amount that is present in the plasma or blood at any time
- Time needed for the drug to reach its highest effective concentration (plasma level)
- Any substances that produce their action by binding to receptors but without initiating changes
7

Atenolol blocks Beta1 receptors. It is a __ drug
- direct
- indirect
- antagonistic

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Pharmacology - Drug terms and definitions

Onset of action refers to:

If plasma level is 500 microgram/L at a certain time, and level drops to 250 microgram/L after 2 hours, t 1/2 is _ hours

Peak effect is:

Steady state level occurs after _ half lives have passed

Which of the following is not a regulatory protein used a drug target:

An agonist is defined as:

Atenolol blocks Beta1 receptors. It is a __ drug

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