what are the expected changes on an ecg for a patient with hypokalemia

ATI RN

ATI Capstone Adult Medical Surgical Assessment 2

1. What are the expected changes on an ECG for a patient with hypokalemia?

A. Flattened T waves
B. Prominent U waves
C. ST elevation
D. Wide QRS complexes

Correct answer: A

Rationale: Flattened T waves are an early sign of hypokalemia on an ECG. Hypokalemia primarily manifests as flattened T waves on an ECG. While prominent U waves can be seen in hypokalemia, they are not as specific as flattened T waves. ST elevation is more commonly associated with conditions like myocardial infarction rather than hypokalemia. Wide QRS complexes are typically not a feature of hypokalemia on an ECG.

2. A nurse is providing teaching to a client who was newly diagnosed with nephrotic syndrome. Which of the following statements should indicate to the nurse that the client understands the teaching?

A. I can expect swelling in my hands and on my face.
B. The amount of protein in my blood is high.
C. I might have some pain and gas in my stomach from this condition.
D. I will use a soft bristle toothbrush to prevent bleeding gums.

Correct answer: A

Rationale: The correct answer is A. Nephrotic syndrome leads to edema, especially of the face and dependent areas, due to the loss of protein in the urine. Choice B is incorrect because nephrotic syndrome leads to protein loss in the urine, not an increase in blood protein levels. Choice C is incorrect as stomach pain and gas are not typical symptoms of nephrotic syndrome. Choice D is incorrect as using a soft bristle toothbrush is not directly related to the manifestations of nephrotic syndrome.

3. What is the purpose of an escharotomy in burn management?

A. To relieve pressure and improve circulation in burn injuries
B. To remove necrotic tissue from a wound
C. To prevent infection in burn injuries
D. To remove excess fluid from burn wounds

Correct answer: A

Rationale: An escharotomy is performed to relieve pressure in areas affected by deep burns and improve circulation. This procedure involves making incisions through the eschar (burned and dead tissue) to release constricting tissue and allow for the return of blood flow. Choice B is incorrect because the removal of necrotic tissue is typically done through debridement, not escharotomy. Choice C is incorrect because preventing infection in burn injuries is usually achieved through proper wound care and antibiotic therapy, not escharotomy. Choice D is incorrect because removing excess fluid from burn wounds is managed through methods like fluid resuscitation and monitoring, not escharotomy.

4. What lab value should be prioritized for monitoring in 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 CD4 T-cell count is crucial in patients with HIV as it reflects the status of their immune system. A CD4 count below 200 cells/mm3 is indicative of severe immunocompromise, necessitating close monitoring and potential intervention. Choices B, C, and D are less specific to HIV management and do not directly reflect the immune status in these patients. Hemoglobin levels are more relevant for assessing anemia, serum albumin levels for nutritional status, and white blood cell count for overall immune response, but none are as directly tied to HIV disease progression as the CD4 T-cell count.

5. What is the priority action if a patient experiences abdominal cramping during enema administration?

A. Lower the height of the solution container
B. Increase the flow of the enema solution
C. Stop the procedure and remove the tubing
D. Continue the enema at a slower rate

Correct answer: A

Rationale: During enema administration, if a patient experiences abdominal cramping, the priority action is to lower the height of the solution container. This adjustment can help relieve abdominal cramping by reducing the flow rate of the enema, making it more comfortable for the patient. Increasing the flow of the enema solution (Choice B) can exacerbate the cramping. Stopping the procedure and removing the tubing (Choice C) may be necessary in some cases of severe discomfort or complications, but adjusting the height of the solution container should be the initial response. Continuing the enema at a slower rate (Choice D) may not address the immediate need to alleviate the cramping.