hyperkalemia is associated with what changes on an ecg

ATI RN

ATI Capstone Adult Medical Surgical Assessment 2

1. What ECG changes are associated with hyperkalemia?

A. Flattened T waves
B. ST depression
C. Prominent U waves
D. Elevated ST segments

Correct answer: B

Rationale: Hyperkalemia is known to cause ST depression on an ECG. Flattened T waves are more commonly seen in hypokalemia. Prominent U waves are associated with hypokalemia rather than hyperkalemia. Elevated ST segments are not typical findings in hyperkalemia.

2. What intervention is needed for a patient with a chest tube and an air leak?

A. Tighten the connections of the chest tube system
B. Replace the chest tube
C. Clamp the chest tube
D. Continue to monitor the chest tube

Correct answer: A

Rationale: The correct intervention for a patient with a chest tube and an air leak is to tighten the connections of the chest tube system. This step helps prevent air leaks and ensures the proper functioning of the chest tube. Choice B, replacing the chest tube, is not necessary as tightening the connections should be attempted first. Clamping the chest tube (Choice C) is not recommended as it can lead to complications by obstructing the drainage system. Continuing to monitor the chest tube (Choice D) without taking action may result in worsening of the air leak. Therefore, the priority intervention is to tighten the connections of the chest tube system.

3. While administering a blood transfusion, a nurse suspects that the client is having an adverse reaction. Which of the following actions should the nurse take first?

A. Maintain IV access
B. Obtain the client's vital signs
C. Contact the provider
D. Stop the transfusion

Correct answer: D

Rationale: The correct first action for the nurse to take when suspecting an adverse reaction to a blood transfusion is to stop the transfusion immediately. Stopping the transfusion helps prevent further harm to the client. Maintaining IV access and obtaining vital signs are important steps but come after stopping the transfusion in this situation. Contacting the provider can be done after ensuring the client's safety by stopping the transfusion.

4. What are the signs and symptoms of compartment syndrome?

A. Unrelieved pain, pallor, and pulselessness
B. Localized redness and swelling
C. Fever and infection
D. Loss of sensation in the affected area

Correct answer: A

Rationale: The signs and symptoms of compartment syndrome include unrelieved pain, pallor, and pulselessness. Unrelieved pain is a key characteristic, indicating tissue ischemia due to increased pressure within a closed anatomic space. Pallor results from compromised blood flow, and pulselessness indicates severe ischemia requiring immediate intervention. Choices B, C, and D are incorrect because localized redness and swelling, fever and infection, and loss of sensation are not specific signs of compartment syndrome. Therefore, the correct answer is A.

5. When caring for a patient with a burn injury, what is the priority intervention?

A. Monitor the burn area for infection
B. Administer IV fluids
C. Debride the burn area
D. Apply a dry dressing

Correct answer: A

Rationale: The priority intervention when caring for a patient with a burn injury is to monitor the burn area for infection. This is crucial to prevent further complications such as sepsis. While administering IV fluids is important for fluid resuscitation, it is not the top priority compared to preventing infection. Debriding the burn area and applying a dry dressing are necessary interventions for wound care, but ensuring there is no infection takes precedence to avoid sepsis and other serious complications.