ATI RN
ATI Capstone Medical Surgical Assessment 2 Quizlet
1. What lab value is a priority in monitoring a patient with HIV?
- A. CD4 T-cell count below 180 cells/mm3
- B. Hemoglobin levels
- C. Serum albumin levels
- D. White blood cell count
Correct answer: A
Rationale: The correct answer is A: CD4 T-cell count below 180 cells/mm3. Monitoring the CD4 T-cell count is crucial in patients with HIV as it reflects the status of the immune system. A CD4 T-cell count below 180 cells/mm3 indicates severe immunocompromise and an increased risk of opportunistic infections. This value guides the initiation of prophylaxis for infections and the timing of antiretroviral therapy initiation. Choices B, C, and D are not the priority lab values in monitoring patients with HIV. Hemoglobin levels primarily assess for anemia, serum albumin levels reflect nutritional status, and white blood cell count is more generalized and may not specifically indicate the severity of immunocompromise in HIV patients.
2. What ECG changes are expected in a patient with hypokalemia?
- A. Flattened T waves
- B. Prominent U waves
- C. Widened QRS complexes
- D. Tall T waves
Correct answer: A
Rationale: Flattened T waves are an early indicator of hypokalemia on an ECG. Hypokalemia primarily presents with flattened T waves, not prominent U waves, widened QRS complexes, or tall T waves. Prominent U waves are associated with hypokalemia only in severe cases. Widened QRS complexes are more indicative of hyperkalemia, while tall T waves are seen in hyperkalemia as well.
3. What is an escharotomy, and why is it performed?
- 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 remove fluid from a burn wound
Correct answer: A
Rationale: An escharotomy is a surgical procedure performed to relieve pressure and improve circulation in areas affected by deep burns. Choice A is the correct answer because the primary goal of an escharotomy is to prevent compartment syndrome caused by increased pressure within the affected tissues. Choices B, C, and D are incorrect because an escharotomy is not primarily performed to reduce pain, remove necrotic tissue, or drain fluid from a burn wound, but to address the specific issue of compromised blood flow and pressure within deep burn injuries.
4. A patient who experienced an acute episode of gastritis should avoid which type of foods?
- A. Avoid foods high in potassium
- B. Avoid foods high in sodium
- C. Increase exercise
- D. Drink milk as a snack
Correct answer: A
Rationale: Patients who have experienced an acute episode of gastritis should avoid foods high in potassium. Potassium-rich foods can irritate the gastric lining, exacerbating gastritis symptoms. Therefore, choices B, C, and D are incorrect. Avoiding foods high in sodium is beneficial for other health conditions like hypertension, increasing exercise is generally good for overall health but not specifically for gastritis management, and drinking milk may provide temporary relief for some but is not a definitive recommendation for gastritis management.
5. Which ECG change is associated with hyperkalemia?
- A. Flattened T waves
- B. Prominent U waves
- C. Elevated ST segments
- D. Widened QRS complex
Correct answer: A
Rationale: Flattened T waves are a characteristic ECG change seen in hyperkalemia. Hyperkalemia affects the repolarization phase of the cardiac cycle, leading to T wave abnormalities. Prominent U waves are typically seen in hypokalemia. Elevated ST segments are more indicative of myocardial infarction or pericarditis. Widened QRS complexes are commonly associated with conditions like bundle branch blocks or certain toxicities.
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