Nursing Elites

1. What are the expected ECG changes in hypokalemia?

• A. Flattened T waves
• B. ST elevation
• C. Wide QRS complex
• D. Tall T waves

Correct answer: A

Rationale: Flattened T waves are the most common ECG change seen in patients with hypokalemia. Hypokalemia leads to a decrease in serum potassium levels, affecting the repolarization phase of the cardiac action potential. This results in T wave flattening or inversion. ST elevation is typically seen in conditions like myocardial infarction, not in hypokalemia. Wide QRS complex is more associated with hyperkalemia than hypokalemia. Tall T waves are often seen in hyperkalemia, not hypokalemia.

2. What is the purpose of an escharotomy?

• A. To relieve pressure and improve circulation in burn injuries
• B. To reduce pain in the affected area
• C. To remove necrotic tissue from a wound
• D. To prevent infection from spreading

Correct answer: A

Rationale: An escharotomy is performed to relieve pressure and improve circulation in areas affected by deep burns. This procedure helps prevent complications such as compartment syndrome by releasing the constricting eschar. Choice B is incorrect because while pain relief may be a secondary outcome of the procedure, the primary purpose is to address pressure and circulation issues. Choice C is incorrect as an escharotomy specifically focuses on releasing pressure, not removing necrotic tissue. Choice D is incorrect as the primary goal of an escharotomy is not to prevent infection but rather to address the immediate issues related to deep burn injuries.

3. What is the priority nursing action when a patient with chest pain presents with possible acute coronary syndrome?

• A. Administer sublingual nitroglycerin
• B. Obtain IV access
• C. Check the patient's cardiac enzymes
• D. Administer aspirin

Correct answer: A

Rationale: The priority nursing action when a patient with chest pain presents with possible acute coronary syndrome is to administer sublingual nitroglycerin. Sublingual nitroglycerin helps dilate blood vessels, reducing cardiac workload, and improving blood supply to the heart muscle, thus relieving pain and enhancing blood flow to the heart. While obtaining IV access is important for administering medications and fluids, it is not the priority over addressing pain and improving blood flow. Checking the patient's cardiac enzymes is crucial for diagnosis and ongoing management but not the immediate priority when the patient is in pain. Administering aspirin is also a vital intervention in acute coronary syndrome, but in this scenario, it is not the priority action compared to providing immediate pain relief and enhancing blood flow to the heart.

4. What are the expected signs of increased intracranial pressure (IICP)?

• A. Restlessness, confusion, irritability
• B. Severe headache and confusion
• C. Elevated blood pressure and bradycardia
• D. Bradycardia and altered pupil response

Correct answer: A

Rationale: The correct answer is A: Restlessness, confusion, irritability. These are early signs of increased intracranial pressure (IICP) and require prompt intervention. Restlessness, confusion, and irritability are indicative of the brain's attempt to compensate for the rising pressure. Choice B is incorrect because severe headache alone is not specific to IICP and can be present in various conditions. Choice C is incorrect because elevated blood pressure is not a common sign of IICP; instead, hypertension may be present in the compensatory stage. Choice D is incorrect as bradycardia and altered pupil response are signs of advanced IICP, not early signs. Monitoring and recognizing these early signs are crucial for timely intervention and preventing further complications.

5. What are the expected symptoms in a patient with compartment syndrome?

• A. Unrelieved pain, pallor, and pulselessness
• B. Localized swelling and redness
• C. Fever and swelling
• D. Weakness and fatigue

Correct answer: A

Rationale: The correct answer is A: Unrelieved pain, pallor, and pulselessness. These symptoms are classic signs of compartment syndrome, which is a serious condition characterized by reduced circulation in a closed muscle compartment. The pain is typically severe and disproportionate to the injury, and if left untreated, it can lead to tissue damage and loss of function. Choices B, C, and D are incorrect because they do not represent the hallmark symptoms of compartment syndrome. Localized swelling and redness may be present but are not specific to this condition. Fever and swelling are more indicative of inflammation or infection, while weakness and fatigue are nonspecific and do not typically occur in isolation in compartment syndrome.

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