315 course Questions With Complete Solutions
1. Question: What is the primary action of beta-blockers in the management
of hypertension?
Answer: Beta-blockers primarily reduce heart rate and myocardial contractility, leading to
decreased cardiac output and lowering blood pressure.
Rationale: By blocking the beta-adrenergic receptors, these medications reduce the workload
on the heart, making them effective in managing hypertension.
2. Question: Which lab values should a nurse monitor for a patient receiving
warfarin?
Answer: The nurse should monitor the International Normalized Ratio (INR) and
prothrombin time (PT).
Rationale: These lab values help assess the effectiveness of warfarin therapy and ensure that
the patient remains within the therapeutic range to prevent clotting or bleeding.
3. Question: What is the antidote for acetaminophen overdose?
Answer: The antidote for acetaminophen overdose is N-acetylcysteine (Mucomyst).
Rationale: N-acetylcysteine replenishes glutathione stores and helps prevent liver damage by
converting toxic metabolites back into non-toxic forms.
4. Question: What is the mechanism of action for ACE inhibitors?
Answer: ACE inhibitors block the conversion of angiotensin I to angiotensin II, leading to
vasodilation and reduced blood pressure.
Rationale: By inhibiting this conversion, ACE inhibitors decrease vascular resistance and
promote sodium and water excretion, aiding in the management of hypertension and heart
failure.
5. Question: What is a common side effect of statins?
,Answer: A common side effect of statins is myopathy, which can lead to muscle pain or
weakness.
Rationale: Statins can affect muscle metabolism, leading to increased creatine kinase levels
and potential muscle damage.
6. Question: When should a patient take levothyroxine?
Answer: A patient should take levothyroxine on an empty stomach, typically in the morning,
at least 30 minutes before eating.
Rationale: Taking levothyroxine with food can decrease its absorption, affecting its efficacy
in managing hypothyroidism.
7. Question: What is the priority assessment for a patient receiving digoxin?
Answer: The priority assessment is monitoring the patient's heart rate and rhythm.
Rationale: Digoxin has a narrow therapeutic range and can cause bradycardia or other
arrhythmias; therefore, regular monitoring of heart rate is crucial.
8. Question: Which class of medications is used to treat asthma by relaxing
bronchial smooth muscle?
Answer: Bronchodilators, particularly beta-agonists (e.g., albuterol), are used to treat asthma.
Rationale: These medications stimulate beta-2 adrenergic receptors in the lungs, leading to
bronchodilation and improved airflow.
9. Question: What is a potential adverse effect of corticosteroid therapy?
Answer: A potential adverse effect of corticosteroid therapy is increased blood glucose
levels.
Rationale: Corticosteroids can induce insulin resistance and gluconeogenesis, leading to
hyperglycemia, especially in diabetic patients.
10. Question: Which medication is commonly used as a first-line treatment for
type 2 diabetes?
,Answer: Metformin is commonly used as a first-line treatment for type 2 diabetes.
Rationale: Metformin improves insulin sensitivity and decreases hepatic glucose production,
helping to control blood sugar levels.
11. Question: What should a nurse educate a patient about regarding the use
of anticoagulants?
Answer: The nurse should educate the patient about the importance of regular blood tests to
monitor coagulation levels and the need to report any signs of bleeding.
Rationale: Monitoring ensures therapeutic effectiveness and safety, as anticoagulants can
increase the risk of bleeding.
12. Question: What is a common side effect of diuretics?
Answer: A common side effect of diuretics is electrolyte imbalances, particularly
hypokalemia (low potassium levels).
Rationale: Diuretics promote increased urine output, which can lead to the loss of potassium
and other electrolytes, necessitating regular monitoring.
13. Question: What is the purpose of administering epinephrine in
anaphylaxis?
Answer: Epinephrine is administered to reverse severe allergic reactions by causing
vasoconstriction and bronchodilation.
Rationale: It alleviates symptoms of anaphylaxis, such as airway swelling and hypotension,
improving respiratory and cardiovascular function.
14. Question: How do proton pump inhibitors (PPIs) work?
Answer: PPIs inhibit the proton pump in the stomach lining, reducing gastric acid secretion.
Rationale: This mechanism helps in managing conditions like gastroesophageal reflux
disease (GERD) and peptic ulcers by decreasing acidity.
, 15. Question: What is a key nursing consideration when administering
antibiotics?
Answer: A key nursing consideration is to assess for allergies before administration.
Rationale: Allergic reactions to antibiotics can be severe and life-threatening, making allergy
assessment crucial for patient safety.
16. Question: What is the purpose of administering acetylsalicylic acid
(aspirin) in cardiovascular disease?
Answer: Aspirin is used for its antiplatelet effects to prevent thrombus formation and reduce
the risk of heart attacks and strokes.
Rationale: By inhibiting platelet aggregation, aspirin helps maintain blood flow and decrease
the likelihood of cardiovascular events.
17. Question: What is a common adverse effect of opioids?
Answer: A common adverse effect of opioids is constipation.
Rationale: Opioids decrease gastrointestinal motility, leading to slowed bowel movements
and increased risk of constipation.
18. Question: When should a nurse administer antihypertensive medication?
Answer: Antihypertensive medication should be administered as ordered, usually at the same
time each day, and ideally after checking the patient's blood pressure.
Rationale: Consistency in administration helps maintain stable blood pressure control and
ensures patient adherence to the medication regimen.
19. Question: What is the mechanism of action of calcium channel blockers?
Answer: Calcium channel blockers inhibit calcium entry into cardiac and smooth muscle
cells, leading to decreased heart rate and vascular relaxation.
Rationale: This action helps lower blood pressure and decrease myocardial oxygen demand,
making them effective for hypertension and angina.