GMS 6551 PREPARATION TEST 2026
QUESTIONS AND CORRECT ANSWERS
GRADED A+
● At which age would you expect a patient to have the highest levels of
P450 activity?
1 year
50 years
80 years. Answer: 50 years
● Prilosec is a substrate for P450 enzymes. Ingesting which of the
following would likely increase its metabolism?
Grapefruit juice
Carrots
Apple juice
Grilled hotdog
Pizza. Answer: Grilled hotdog
● Genetics can influence which of the following (choose none, some, or
all).
, Pharmacokinetics
Pharmacodynamics. Answer: Pharmacokinetics
Pharmacodynamics
● Giving the same dose of isoniazid to two patients, if one is a rapid
acetylator and one is a slow acetylator, the slow acetylator will have
_____ isoniazid in their blood one hour following dosing.
more
less. Answer: more
● Using any resource, including the internet, which of the following has
an adverse drug interaction with Xanax?
Loperamide
Paclitaxel
Azithromycin
Vitamin B-12
Indinavir. Answer: Indinavir
QUESTIONS AND CORRECT ANSWERS
GRADED A+
● At which age would you expect a patient to have the highest levels of
P450 activity?
1 year
50 years
80 years. Answer: 50 years
● Prilosec is a substrate for P450 enzymes. Ingesting which of the
following would likely increase its metabolism?
Grapefruit juice
Carrots
Apple juice
Grilled hotdog
Pizza. Answer: Grilled hotdog
● Genetics can influence which of the following (choose none, some, or
all).
, Pharmacokinetics
Pharmacodynamics. Answer: Pharmacokinetics
Pharmacodynamics
● Giving the same dose of isoniazid to two patients, if one is a rapid
acetylator and one is a slow acetylator, the slow acetylator will have
_____ isoniazid in their blood one hour following dosing.
more
less. Answer: more
● Using any resource, including the internet, which of the following has
an adverse drug interaction with Xanax?
Loperamide
Paclitaxel
Azithromycin
Vitamin B-12
Indinavir. Answer: Indinavir
