what is the purpose of an escharotomy

ATI RN

ATI Capstone Medical Surgical Assessment 2 Quizlet

1. 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.

2. 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.

3. What does continuous bubbling in the water seal chamber of a chest tube indicate?

A. An air leak
B. Normal chest tube function
C. A blockage in the chest tube
D. A malfunction in the drainage system

Correct answer: A

Rationale: Continuous bubbling in the water seal chamber of a chest tube indicates an air leak. This bubbling occurs when air leaks from the patient's pleural space into the chest tube system. It is essential to address this issue promptly to prevent complications like a pneumothorax. Choices B, C, and D are incorrect because continuous bubbling in the water seal chamber is not indicative of normal chest tube function, a blockage in the chest tube, or a malfunction in the drainage system.

4. 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.

5. 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.