NRNP6566 CERTIFICATION EVALUATION
2026 PRACTICE QUESTIONS AND
ANSWERS FULL SOLUTION VIEW
●● Inhibitors.
Answer: block metabolic activity from one or more CYP450 enzymes
●● Inducers.
Answer: increase CYP450 enzyme activity by increasing enzyme
synthesis
●● Describe effect on low and high albumin levels on active drug levels
especially for drugs that are highly protein bound.
Answer: Albumin is the plasma protein with the greatest capacity for
binding drugs. Binding plasma proteins affect drug distribution into
tissues, because only drug that is not bound is available to penetrate
tissues, bind to receptors, and exert activity. As free drug leaves the
blood stream, more bound drug is released from binding sites.
●● Low albumin levels.
Answer: malnutrition, chronic illness
●● Highly protein bound drugs can lead to.
, Answer: toxicity in patients with low albumin levels, example
malnutrition or chronic illness. This is because there are fewer than the
normal sites for the drug to bind
●● Describe the ways the hepatic first pass effect- which is metabolism
during first pass through the liver.
Answer: Alternative routes include:
suppository
intravenous
intramuscular
inhalational aerosol
transdermal
sublingual
These allow drugs to bypass the first-pass effect and be absorbed
directly into systemic circulation
●● Be able to calculate creatinine clearance using Cockgraft Gault
equation:.
Answer: Male = 140-age times weight in kilograms divided by serum
creatinine times 72.
Women = CRCL (male) times 0.85
●● Describe what determines the frequency of drug administration.
2026 PRACTICE QUESTIONS AND
ANSWERS FULL SOLUTION VIEW
●● Inhibitors.
Answer: block metabolic activity from one or more CYP450 enzymes
●● Inducers.
Answer: increase CYP450 enzyme activity by increasing enzyme
synthesis
●● Describe effect on low and high albumin levels on active drug levels
especially for drugs that are highly protein bound.
Answer: Albumin is the plasma protein with the greatest capacity for
binding drugs. Binding plasma proteins affect drug distribution into
tissues, because only drug that is not bound is available to penetrate
tissues, bind to receptors, and exert activity. As free drug leaves the
blood stream, more bound drug is released from binding sites.
●● Low albumin levels.
Answer: malnutrition, chronic illness
●● Highly protein bound drugs can lead to.
, Answer: toxicity in patients with low albumin levels, example
malnutrition or chronic illness. This is because there are fewer than the
normal sites for the drug to bind
●● Describe the ways the hepatic first pass effect- which is metabolism
during first pass through the liver.
Answer: Alternative routes include:
suppository
intravenous
intramuscular
inhalational aerosol
transdermal
sublingual
These allow drugs to bypass the first-pass effect and be absorbed
directly into systemic circulation
●● Be able to calculate creatinine clearance using Cockgraft Gault
equation:.
Answer: Male = 140-age times weight in kilograms divided by serum
creatinine times 72.
Women = CRCL (male) times 0.85
●● Describe what determines the frequency of drug administration.
