PCCN Medical Treatments & Medications — Questions and Answers
Question 1: Which medication is typically administered to reverse the effects of opioid overdose?
- Flumazenil
- Atropine
- Naloxone (Correct answer)
- Protamine sulfate
Correct answer: Naloxone
Naloxone is an opioid antagonist specifically used to rapidly reverse the effects of opioid overdose by blocking opioid receptors. It is a life-saving medication that can quickly restore respiratory function in patients experiencing opioid-induced respiratory depression. Its rapid action makes it the drug of choice for opioid overdose emergencies.
Question 2: A patient with atrial fibrillation is started on warfarin. What is the primary lab value used to monitor its therapeutic effect?
- aPTT
- INR (Correct answer)
- Platelet count
- Fibrinogen level
Correct answer: INR
The International Normalized Ratio (INR) is the standard laboratory test used to monitor the therapeutic effect of warfarin. It measures the extrinsic pathway of coagulation and helps ensure the patient's blood is adequately thinned to prevent clots without increasing the risk of bleeding. Maintaining the INR within the therapeutic range is crucial for patient safety and efficacy.
Question 3: Which adverse effect should the nurse monitor for when a patient is receiving furosemide?
- Hypernatremia
- Hypokalemia (Correct answer)
- Bradycardia
- Hypertension
Correct answer: Hypokalemia
Furosemide is a loop diuretic that works by inhibiting sodium and chloride reabsorption in the loop of Henle, leading to increased excretion of water, sodium, potassium, and chloride. Therefore, hypokalemia (low potassium) is a common and significant adverse effect that nurses must monitor for. Potassium supplementation may be required to prevent cardiac arrhythmias.
Question 4: What is the primary goal of thrombolytic therapy in patients with acute myocardial infarction (MI)?
- Prevent platelet aggregation
- Dissolve the existing blood clot (Correct answer)
- Reduce myocardial oxygen demand
- Decrease heart rate
Correct answer: Dissolve the existing blood clot
The primary goal of thrombolytic therapy in acute myocardial infarction (MI) is to dissolve the blood clot (thrombus) that is obstructing blood flow in the coronary artery. By restoring blood flow (reperfusion) to the ischemic myocardial tissue, thrombolytics aim to limit infarct size, preserve cardiac function, and improve patient outcomes.
Question 5: Which of the following is a common side effect of ACE inhibitors such as lisinopril?
- Constipation
- Bradycardia
- Dry cough (Correct answer)
- Urinary retention
Correct answer: Dry cough
A persistent, dry cough is a common and well-known side effect of ACE inhibitors like lisinopril. This cough is thought to be related to the accumulation of bradykinin, a substance that ACE inhibitors prevent from breaking down. While generally benign, it can be bothersome enough to warrant a change in medication.
Question 6: A patient receiving heparin begins to develop signs of heparin-induced thrombocytopenia (HIT). What is the most appropriate action?
- Increase the heparin dose
- Administer vitamin K
- Discontinue heparin and notify the provider (Correct answer)
- Administer platelet transfusion
Correct answer: Discontinue heparin and notify the provider
If a patient develops signs of heparin-induced thrombocytopenia (HIT), such as a significant drop in platelet count or new thrombosis, the most appropriate and immediate action is to discontinue all heparin products. Notifying the provider is crucial for initiating alternative anticoagulation and further management, as HIT is a serious, potentially life-threatening condition.
Question 7: Which medication is commonly used to reduce afterload in heart failure?
- Furosemide
- Lisinopril (Correct answer)
- Digoxin
- Metoprolol
Correct answer: Lisinopril
Lisinopril, an ACE inhibitor, reduces afterload by causing vasodilation, which decreases systemic vascular resistance. By lowering the resistance against which the heart must pump, it improves cardiac output and reduces the workload on the failing heart in patients with heart failure. This makes it a cornerstone medication for managing heart failure symptoms.
Question 8: A patient with severe asthma is prescribed methylprednisolone. Which nursing action is most appropriate when administering this medication?
- Administer with grapefruit juice
- Monitor blood glucose levels closely (Correct answer)
- Encourage fluid restriction
- Avoid giving with meals
Correct answer: Monitor blood glucose levels closely
Methylprednisolone is a corticosteroid, and a common and significant side effect of corticosteroids is hyperglycemia (elevated blood glucose levels). Nurses must closely monitor blood glucose, especially in patients with diabetes or those at risk, to manage this potential complication effectively. This monitoring helps prevent adverse outcomes related to uncontrolled blood sugar.
Question 9: Which of the following medications requires a peak and trough level for safe administration?
- Vancomycin (Correct answer)
- Acetaminophen
- Ciprofloxacin
- Azithromycin
Correct answer: Vancomycin
Vancomycin is an antibiotic with a narrow therapeutic index, meaning the difference between an effective and a toxic dose is small. Therefore, peak and trough levels are routinely monitored to ensure therapeutic concentrations are achieved while minimizing the risk of serious adverse effects such as nephrotoxicity (kidney damage) and ototoxicity (hearing damage).
PCCN Medical Treatments & Medications
Which medication is typically administered to reverse the effects of opioid overdose?