UWorld Pharmacology Nursing Test (100+
Solved Questions)
Master your nursing exams with this
expertly crafted set of over 100 high-yield,
exam-focused pharmacology questions,
each paired with detailed rationales and
verified answers.
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Exam Preparation for Nursing Students
1. What is the antidote for warfarin toxicity?
The antidote for warfarin toxicity is vitamin K. Warfarin is an anticoagulant, which
means it helps prevent blood clots. However, in cases of overdose or excessive
bleeding, vitamin K can help reverse the effects of warfarin by aiding in the synthesis
, of clotting factors, which are necessary for blood coagulation. In emergencies, fresh
frozen plasma might also be used to quickly restore clotting factors.
2. Which lab value should be monitored for a patient on gentamicin?
The key lab value to monitor for a patient on gentamicin is the serum
creatinine level. Gentamicin is an aminoglycoside antibiotic that can
cause nephrotoxicity, or kidney damage. Monitoring serum creatinine
helps assess kidney function. Additionally, it is important to check peak
and trough levels of gentamicin to ensure therapeutic levels are
maintained without reaching toxic levels.
3. Which drug class does lisinopril belong to?
Lisinopril is an angiotensin-converting enzyme (ACE) inhibitor. ACE
inhibitors are primarily used to treat high blood pressure and heart
failure. They work by relaxing blood vessels, which reduces blood pressure
and decreases the heart's workload.
4. What is the primary side effect of furosemide?
The primary side effect of furosemide, which is a loop diuretic, is
hypokalemia, or low potassium levels. Furosemide increases urine
production, which helps remove excess fluid from the body but can also
lead to the loss of potassium and other electrolytes. This can cause
muscle cramps, weakness, and cardiac issues if not monitored and
managed.
5. Why is it important to monitor potassium with spironolactone?
Spironolactone is a potassium-sparing diuretic, meaning it helps the
body retain potassium while excreting sodium and water. It is important
to monitor potassium levels because excessive potassium retention can
lead to hyperkalemia, a condition characterized by dangerously high
potassium levels. Hyperkalemia can cause cardiac arrhythmias and other
serious complications.
6. What is the peak action time for rapid-acting insulin (e.g., lispro)?
The peak action time for rapid-acting insulin, such as lispro, is typically 1
to 2 hours after injection. Rapid-acting insulin is designed to mimic the
body's natural insulin response to meals, quickly lowering blood glucose
levels. It is essential for patients to coordinate their insulin administration
with meal times to effectively manage blood glucose levels.
, 7. Which medication is contraindicated in asthma: propranolol or
atenolol?
Propranolol is contraindicated in asthma. Propranolol is a non-selective
beta-blocker, meaning it blocks beta receptors in both the heart and
lungs. This can lead to bronchoconstriction and exacerbate asthma
symptoms. Atenolol, on the other hand, is a selective beta-blocker that
primarily affects the heart, making it generally safer for asthmatic
patients.
8. What is the therapeutic range for digoxin?
The therapeutic range for digoxin, a cardiac glycoside, is typically 0.5 to
2.0 ng/mL. Maintaining digoxin levels within this range is crucial to
ensure efficacy while avoiding toxicity. Digoxin is used to treat heart
failure and atrial fibrillation by increasing cardiac contractility and
controlling heart rate.
9. Name one sign of digoxin toxicity.
One sign of digoxin toxicity is visual disturbances, such as seeing halos
around lights or yellow/green vision. Other symptoms can include
nausea, vomiting, confusion, and cardiac arrhythmias. Regular
monitoring of digoxin levels and awareness of these symptoms are
important to prevent toxicity.
10. What teaching is necessary for a patient taking levothyroxine?
Patients taking levothyroxine, a thyroid hormone replacement, should be
instructed to take it on an empty stomach, ideally 30 to 60 minutes
before breakfast, to ensure optimal absorption. They should also be
advised to take it consistently at the same time each day and to avoid
taking it with calcium or iron supplements, as these can interfere with its
absorption. Regular monitoring of thyroid function tests is necessary to
adjust the dosage as needed.
11. Which antibiotic causes red man syndrome?
Vancomycin is the antibiotic associated with red man syndrome, a rate-
dependent infusion reaction. It occurs when the drug is infused too
quickly, causing histamine release and resulting in flushing, rash,
hypotension, and sometimes tachycardia.