what ecg changes should be monitored in a patient with hypokalemia

ATI RN

ATI Capstone Medical Surgical Assessment 2 Quizlet

1. 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.

2. What signs indicate increased intracranial pressure (IICP)?

A. Restlessness, irritability, and confusion
B. Sudden onset of seizures
C. Bradycardia and altered pupil response
D. Loss of consciousness

Correct answer: A

Rationale: Restlessness, irritability, and confusion are early signs of increased intracranial pressure (IICP). These symptoms occur due to the brain's increased pressure within the skull. Sudden onset of seizures (Choice B) is not typically associated with increased intracranial pressure. Bradycardia and altered pupil response (Choice C) are signs of advanced or worsening IICP. Loss of consciousness (Choice D) is a late sign of increased intracranial pressure.

3. What is the priority intervention for a patient with possible acute coronary syndrome?

A. Administer nitroglycerin
B. Get IV access
C. Auscultate heart sounds
D. Administer aspirin

Correct answer: A

Rationale: The correct answer is to administer nitroglycerin. Nitroglycerin is the priority intervention for a patient with possible acute coronary syndrome as it helps dilate blood vessels, reduce chest pain, and improve blood flow to the heart. This intervention is crucial in managing acute coronary syndrome and should be given promptly. Getting IV access may be necessary, but administering nitroglycerin takes precedence to alleviate symptoms and prevent further heart damage. Auscultating heart sounds and administering aspirin are important aspects of the assessment and treatment plan, but they are not the priority interventions in the acute phase of suspected acute coronary syndrome.

4. A nurse is providing discharge teaching to a client following a heart transplant. Which of the following information should the nurse include in the teaching?

A. Immunosuppressant medications need to be taken for up to 1 year
B. Shortness of breath might be an indication of transplant rejection
C. The surgical site will heal in 3 to 4 weeks after surgery
D. Begin 45 minutes of moderate aerobic exercise per day following discharge

Correct answer: B

Rationale: The correct answer is B. Shortness of breath is an important sign of transplant rejection. Other manifestations of rejection include fatigue, edema, bradycardia, and hypotension. Choices A, C, and D are incorrect because: A) Immunosuppressant medications are typically required for life, not just up to 1 year. C) The surgical site healing time can vary and may take longer than 3 to 4 weeks. D) Starting a specific exercise regimen should be individualized and guided by healthcare providers; a general recommendation like 45 minutes of exercise per day may not be suitable for all heart transplant recipients.

5. What are the early signs of hypokalemia on an ECG?

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 sign of hypokalemia on an ECG. In hypokalemia, the T waves may flatten and eventually invert. Elevated ST segments are not typically associated with hypokalemia. Prominent U waves are seen in conditions like hypokalemia, but they are not considered an early sign. A widened QRS complex is more commonly associated with hyperkalemia rather than hypokalemia.