ATC Pharmacology 5

Question 1

An athlete is using creatine monohydrate supplementation. Under current WADA regulations, creatine is classified as:

Accepted Answer

A permitted supplement not on the prohibited list

Answer

Creatine is not prohibited by WADA and is freely available as a dietary supplement, though product contamination remains a concern.

Question 2

Which of the following is a primary concern when an athlete combines alcohol with acetaminophen (Tylenol)?

Accepted Answer

Potential for severe hepatotoxicity

Answer

Both alcohol and acetaminophen are metabolized hepatically; combined use increases toxic metabolite production and risk of liver damage.

Question 3

Which pharmacokinetic process is primarily responsible for converting lipid-soluble drugs into more water-soluble metabolites for excretion?

Accepted Answer

Metabolism (biotransformation)

Answer

Metabolism, primarily occurring in the liver, chemically transforms drugs into polar, water-soluble metabolites that can be excreted.

Question 4

An athlete taking erythropoietin (EPO) for performance enhancement is primarily seeking to improve which physiological parameter?

Accepted Answer

Aerobic capacity by increasing red blood cell production

Answer

EPO stimulates red blood cell production, increasing oxygen-carrying capacity and improving VO2max in endurance events.

Question 5

Which of the following best describes the pharmacological concept of a 'therapeutic window'?

Accepted Answer

The range between a drug's minimum effective concentration and its minimum toxic concentration

Answer

The therapeutic window is the concentration range where a drug provides therapeutic effect without causing toxicity.

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