What ECG changes should be monitored in a patient with hypokalemia?

A. Flattened T waves and prominent U waves

B. Elevated ST segments and wide QRS complexes

C. Tall T waves and flattened QRS complexes

D. Widened QRS complexes and decreased P wave amplitude

Correct Answer: A
Rationale: The correct answer is A: Flattened T waves and prominent U waves. In hypokalemia, there is a decrease in potassium levels, which can lead to ECG changes such as flattened T waves and prominent U waves. These changes are classic findings associated with hypokalemia. Choices B (Elevated ST segments and wide QRS complexes), C (Tall T waves and flattened QRS complexes), and D (Widened QRS complexes and decreased P wave amplitude) are all incorrect. Elevated ST segments and wide QRS complexes are not typically seen in hypokalemia. Tall T waves and flattened QRS complexes, as well as widened QRS complexes and decreased P wave amplitude, do not represent the typical ECG changes seen in hypokalemia.

A nurse is assessing a client who has meningitis. The nurse should identify which of the following findings as a positive Kernig's sign?

• A. After stroking the lateral area of the foot, the client's toes contract and draw together
• B. After hip flexion, the client is unable to extend their leg completely without pain
• C. The client's voluntary movement is not coordinated
• D. The client reports pain and stiffness when flexing their neck

Correct Answer: B
Rationale: A positive Kernig's sign is identified when a client is unable to extend their leg completely without pain after hip flexion. This finding suggests meningeal irritation. Choices A, C, and D do not describe Kernig's sign. Choice A describes a normal plantar reflex, Choice C refers to coordination deficits, and Choice D indicates neck pain and stiffness, which are not related to Kernig's sign.

After a healthcare provider misreads a glucose level and administers insulin, what is the priority intervention?

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

Correct Answer: A
Rationale: The correct answer is to monitor for hypoglycemia. Administering insulin based on a misread glucose level can lead to hypoglycemia. Monitoring for hypoglycemia is crucial as it is a potential adverse effect of the insulin administration. Administering glucose IV (Choice B) is not the priority as there is no indication of hypoglycemia yet. Documenting the incident (Choice C) is important but not the immediate priority over patient safety. Monitoring for hyperglycemia (Choice D) is not the priority after administering insulin in response to a misread glucose level.

What dietary instructions should be provided for a patient with pre-dialysis end-stage kidney disease?

• A. Limit phosphorus intake to 700 mg/day
• B. Increase protein intake to 1g/kg/day
• C. Increase sodium intake
• D. Avoid potassium-rich foods

Correct Answer: A
Rationale: Patients with pre-dialysis end-stage kidney disease should limit phosphorus intake to manage their condition. Excessive phosphorus can lead to mineral and bone disorders in patients with kidney disease. Choices B, C, and D are incorrect. Increasing protein intake is not recommended as it can burden the kidneys. Increasing sodium intake is usually discouraged due to its association with hypertension and fluid retention in kidney disease. Avoiding potassium-rich foods is more relevant in advanced kidney disease stages when potassium levels are high, not in pre-dialysis end-stage kidney disease.

What are the common manifestations of a thrombotic stroke?

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

Correct Answer: A
Rationale: The correct answer is A: Gradual loss of function on one side of the body. A thrombotic stroke is characterized by a gradual onset of symptoms due to interrupted blood flow in the brain. This interruption results in manifestations such as weakness, numbness, or paralysis on one side of the body. Choices B, C, and D are incorrect because sudden loss of consciousness, severe headache, confusion, seizures, and convulsions are more commonly associated with conditions other than thrombotic strokes.