what are the signs of hypokalemia on an ecg

ATI RN

ATI Capstone Adult Medical Surgical Assessment 2

1. What is a characteristic sign of hypokalemia on an ECG?

A. Flattened T waves
B. ST elevation
C. Prominent U waves
D. Widened QRS complex

Correct answer: A

Rationale: Flattened T waves are a characteristic sign of hypokalemia on an ECG. When potassium levels are low, it can lead to changes in the ECG, such as T wave flattening. This alteration is important to recognize as it indicates potential electrolyte imbalances. ST elevation (Choice B) is not typically associated with hypokalemia but can be seen in conditions like myocardial infarction. Prominent U waves (Choice C) are associated with hypokalemia, but flattened T waves are more specific. Widened QRS complex (Choice D) is not a typical ECG finding in hypokalemia but can be seen in conditions like hyperkalemia.

2. What dietary teaching should be provided to a patient with pre-dialysis end-stage kidney disease?

A. Limit phosphorus intake to 700 mg/day
B. Increase protein intake to 1.5 g/kg/day
C. Restrict sodium intake to 1 g/day
D. Increase potassium intake to 3 g/day

Correct answer: A

Rationale: The correct answer is to limit phosphorus intake to 700 mg/day for a patient with pre-dialysis end-stage kidney disease. Excess phosphorus can lead to complications such as bone and heart issues in these patients. Increasing protein intake (Choice B) is generally not recommended as it can lead to increased waste production that the kidneys may struggle to eliminate. Restricting sodium intake (Choice C) is important for managing blood pressure, but the recommendation is usually higher than 1 g/day. Increasing potassium intake (Choice D) is not typically advised in patients with kidney disease, as they often need to limit potassium due to impaired kidney function.

3. What are the expected signs of increased intracranial pressure (IICP)?

A. Restlessness, confusion, irritability
B. Severe headache and confusion
C. Elevated blood pressure and bradycardia
D. Bradycardia and altered pupil response

Correct answer: A

Rationale: The correct answer is A: Restlessness, confusion, irritability. These are early signs of increased intracranial pressure (IICP) and require prompt intervention. Restlessness, confusion, and irritability are indicative of the brain's attempt to compensate for the rising pressure. Choice B is incorrect because severe headache alone is not specific to IICP and can be present in various conditions. Choice C is incorrect because elevated blood pressure is not a common sign of IICP; instead, hypertension may be present in the compensatory stage. Choice D is incorrect as bradycardia and altered pupil response are signs of advanced IICP, not early signs. Monitoring and recognizing these early signs are crucial for timely intervention and preventing further complications.

4. What should the nurse do 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: When a patient experiences abdominal cramping during enema administration, the nurse should lower the height of the solution container. This adjustment can help alleviate the cramping by reducing the speed and pressure of the solution entering the colon. 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 extreme cases but is not the initial step. Continuing the enema at a slower rate (Choice D) may not effectively address the cramping, making it less optimal than lowering the height of the solution container.

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.