Nursing Elites

1. What ECG changes are seen with hyperkalemia?

• A. Flattened T waves
• B. Elevated ST segments
• C. Prominent U waves
• D. Widened QRS complex

Correct answer: A

Rationale: Flattened T waves are an early ECG sign of hyperkalemia. Hyperkalemia affects the repolarization phase of the cardiac action potential, leading to changes such as peaked T waves, prolonged PR interval, widened QRS complex, and ultimately sine wave pattern. Elevated ST segments, prominent U waves, and widened QRS complex are not typically associated with hyperkalemia, making choices B, C, and D incorrect.

2. What teaching should be provided to a patient after cataract surgery?

• A. Avoid NSAIDs
• B. Avoid bright lights
• C. Wear dark glasses while outdoors
• D. Use warm compresses

Correct answer: A

Rationale: The correct teaching to provide to a patient after cataract surgery is to avoid NSAIDs. NSAIDs should be avoided to reduce the risk of bleeding post-surgery. Choices B, C, and D are not directly related to post-cataract surgery care. Avoiding bright lights and wearing dark glasses while outdoors may be beneficial for eye comfort but are not specific postoperative instructions. Using warm compresses is also not a standard teaching after cataract surgery.

3. What is the primary concern for a patient with a CD4 T-cell count below 180 cells/mm³?

• A. Increased risk of severe infection
• B. Increased risk of anemia
• C. Increased risk of bleeding
• D. Increased risk of dehydration

Correct answer: A

Rationale: A CD4 T-cell count below 180 cells/mm³ indicates a severely immunocompromised state, leading to an increased risk of severe infection. In individuals with low CD4 counts, the immune system is significantly weakened, making them more susceptible to opportunistic infections. Anemia (choice B), bleeding (choice C), and dehydration (choice D) are not the primary concerns associated with a low CD4 T-cell count. While these conditions may occur as secondary effects or complications, the primary focus is on preventing and managing severe infections in patients with severely compromised immune systems.

4. A nurse is administering insulin to a patient after misreading their glucose as 210 mg/dL instead of 120 mg/dL. What should the nurse monitor for?

• A. Monitor for hypoglycemia
• B. Monitor for hyperkalemia
• C. Administer glucose IV
• D. Document the incident

Correct answer: A

Rationale: The correct answer is to monitor for hypoglycemia. Insulin administration based on a misread glucose level can lead to hypoglycemia due to the unnecessary lowering of blood sugar levels. Monitoring for hypoglycemia involves assessing the patient's blood glucose levels frequently, observing for signs and symptoms such as shakiness, confusion, sweating, and administering glucose if hypoglycemia occurs. Choice B, monitoring for hyperkalemia, is incorrect as insulin administration typically lowers potassium levels. Choice C, administering glucose IV, is not the immediate action needed as the patient could potentially develop hypoglycemia from the excess insulin. Choice D, documenting the incident, is important but not the immediate priority when dealing with a potential hypoglycemic event.

5. What are the expected symptoms in a patient experiencing a thrombotic stroke?

• A. Gradual loss of function on one side of the body
• B. Sudden loss of consciousness
• C. Seizures and convulsions
• D. Severe headache and vomiting

Correct answer: A

Rationale: The correct answer is A: 'Gradual loss of function on one side of the body.' Thrombotic strokes typically result in a gradual onset of symptoms due to a blockage in a blood vessel in the brain, leading to a slow progression of neurological deficits. Choices B, C, and D are incorrect because sudden loss of consciousness, seizures, convulsions, severe headache, and vomiting are more commonly associated with other types of strokes or medical conditions, such as hemorrhagic strokes, epilepsy, or migraines.

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