CONCEPTS & NOTES | 2026 CORRECT QUESTIONS AND
VERFIED ANSWERS ~ CHAMBERLAIN UNIVERSITY.
NR565
WEEK 1: FOUNDATIONS IN PHARM
● Prescriptive authority
○ Legal permission for providers to prescribe meds
● Prescription writing
○ Process of creating a written order for a rx
● Prescribing considerations
○ Pt: age, wt, kidney/liver funct, allergy, pregnancy
○ Drug: s/e, interactions, dose, formula
○ Disease: severity, other conditions, goals
○ Safety: monitoring needs, risk of misuse, adherence
● Med education
○ Teach the pt:
■ What rx is for, how/when to take it, possible s/e, interactions with food,
other drugs, alcohol, storage and disposal, when to seek help
● Drug absorption
○ Process rx moved from route to bloodstream
● Drug distribution
○ Process rx moving from bloodstream to tissue and organs where it acts
● Drug metabolism
○ Process by which body breaks down rx usually in liver to make it easier to
eliminate
● Renal drug excretion
○ Process of removing drugs from the body thru the kidneys which ensure drugs
don't build up to toxic levels
● Agonists and antagonists
○ Agonist: activates a receptor to produce a response
○ Antagonist: blocks a receptor to produce a response
● Drug interactions
○ Occurs when one drug affects the action of another drug which can increase or
dec its effect or cause side effects
■ Drug to drug, drug to food, drug to disease
● Hepatic drug metabolism
○ Process by which the live chemical changes drugs to help the body use or
eliminate them
● Half life
○ Time it takes for concentration of drug to reduce to half
■ Ex: drug blood level is 100mg/L. Drugs half life is 4 hrs. At 4hrs blood
level is 50mg/L
● Ways to minimize adverse drug reactions
, ○ Review pt hx: allergies, med condition, current rx