567 FINAL EXAM PREP HIGH-YIELD
QUESTIONS & RATIONALES
This premium study resource features a verified mock exam
blueprint tailored for advanced practice nursing students tackling
critical care pharmacology. Every multiple-choice question
contains italicised correct answers and comprehensive, bold-
italicised rationales clarifying high-alert mechanisms, emergency
antidotes, and vasoactive drug titrations. It serves as an
exceptional tool for mastering complex acute care drug concepts
and securing an elite grade on your advanced pharmacology final
exam.
1. A 42-year-old patient is admitted to the ICU in
status epilepticus. After establishing an airway,
which of the following is the preferred first-line
intravenous medication to achieve rapid seizure
termination?
A) Phenytoin
B) Phenobarbital
C) Lorazepam
D) Valproate
Answer: C) Lorazepam
Rationale: Intravenous benzodiazepines,
specifically lorazepam, are the first-line agents
for status epilepticus due to their rapid onset of
action in crossing the blood-brain barrier and
,potentiating GABA-mediated inhibition.
Phenytoin and phenobarbital are secondary or
tertiary agents used for maintenance or
refractory status.
2. A patient receiving a prolonged, high-dose
infusion of Propofol (Diprivan) for mechanical
ventilation sedation is at risk for Propofol
Infusion Syndrome (PRIS). Which laboratory
value must be routinely monitored to screen for
this lethal complication?
A) Serum amylase
B) Serum triglycerides
C) Blood urea nitrogen
D) Serum ionized calcium
Answer: B) Serum triglycerides
Rationale: Propofol is formulated in a 10% lipid
emulsion. Prolonged or high-dose infusions can
lead to severe hypertriglyceridemia, which is a
hallmark component of PRIS alongside
metabolic acidosis, rhabdomyolysis,
hyperkalemia, and cardiac failure.
3. During a rapid sequence intubation (RSI), a
patient is given Succinylcholine. Minutes later,
the patient develops severe muscle rigidity, a
rapidly rising core temperature, and a dramatic
,spike in end-tidal CO2. What is the immediate
pharmacological intervention?
A) Intravenous Vecuronium
B) Intravenous Dantrolene at 2.5 mg/kg
C) Intravenous Physostigmine
D) Intravenous Neostigmine
Answer: B) Intravenous Dantrolene at 2.5 mg/kg
Rationale: The patient is exhibiting signs of
Malignant Hyperthermia, a rare but life-
threatening reaction to volatile anesthetics or
depolarizing neuromuscular blockers like
succinylcholine. Dantrolene works by inhibiting
calcium release from the sarcoplasmic
reticulum, and the standard starting dose is 2.5
mg/kg IV.
4. An unresponsive patient with a history of
chronic alcohol use disorder is brought to the
emergency department. Prior to administering
any glucose-containing intravenous fluids, what
medication must be given to prevent Wernicke-
Korsakoff syndrome?
A) Pyridoxine (Vitamin B6)
B) Thiamine (Vitamin B1)
C) Cyanocobalamin (Vitamin B12)
D) Folic Acid
, Answer: B) Thiamine (Vitamin B1)
Rationale: Administering dextrose to a thiamine-
deficient patient can acutely exhaust remaining
thiamine stores, precipitating or worsening
Wernicke's encephalopathy. Thiamine must
always precede or accompany glucose
administration in patients suspected of chronic
malnutrition or alcohol misuse.
5. A patient is brought to the emergency room
following the ingestion of methanol. Which agent
should the AGACNP prescribe to inhibit alcohol
dehydrogenase and stop the formation of toxic
metabolites like formic acid?
A) Naloxone
B) Acetylcysteine
C) Fomepizole
D) Flumazenil
Answer: C) Fomepizole
Rationale: Fomepizole is a competitive inhibitor
of alcohol dehydrogenase, preventing the
metabolism of methanol into its highly toxic
components, formaldehyde and formic acid,
which cause blindness and metabolic acidosis.
6. When initiating Phenytoin (Dilantin) therapy
for a patient with new-onset focal seizures, the