what are the ecg changes seen with hyperkalemia

ATI RN

ATI Capstone Adult Medical Surgical Assessment 2

1. 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.

2. A nurse is administering insulin to a patient after misreading their glucose as 210 mg/dL instead of 120 mg/dL. What should the nurse monitor for?

A. Monitor for hypoglycemia
B. Monitor for hyperkalemia
C. Administer glucose IV
D. Document the incident

Correct answer: A

Rationale: The correct answer is to monitor for hypoglycemia. Insulin administration based on a misread glucose level can lead to hypoglycemia due to the unnecessary lowering of blood sugar levels. Monitoring for hypoglycemia involves assessing the patient's blood glucose levels frequently, observing for signs and symptoms such as shakiness, confusion, sweating, and administering glucose if hypoglycemia occurs. Choice B, monitoring for hyperkalemia, is incorrect as insulin administration typically lowers potassium levels. Choice C, administering glucose IV, is not the immediate action needed as the patient could potentially develop hypoglycemia from the excess insulin. Choice D, documenting the incident, is important but not the immediate priority when dealing with a potential hypoglycemic event.

3. What are the expected findings in a patient with a thrombotic stroke?

A. Gradual loss of function on one side of the body
B. Sudden loss of consciousness
C. Severe headache and vomiting
D. Loss of sensation in the affected limb

Correct answer: A

Rationale: The correct answer is A: Gradual loss of function on one side of the body. In a thrombotic stroke, a blood clot forms in an artery supplying blood to the brain, leading to reduced blood flow to a specific area of the brain. This results in a gradual onset of neurological deficits, 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 and vomiting, and loss of sensation in the affected limb are more commonly associated with other types of strokes or medical conditions, not specifically thrombotic strokes. Thrombotic strokes typically present with gradual symptoms due to the gradual blockage of blood flow, leading to a progressive neurological deficit.

4. A patient reports abdominal cramping during an enema administration. What action should the nurse take?

A. Increase the flow of the enema
B. Lower the height of the enema solution container
C. Stop the enema procedure
D. Remove the enema tubing

Correct answer: B

Rationale: When a patient experiences abdominal cramping during an enema administration, the nurse should lower the height of the enema solution container. Lowering the container helps to relieve cramping by slowing the flow of the solution, making it more comfortable for the patient. Increasing the flow (Choice A) would exacerbate the cramping. Stopping the procedure (Choice C) may not be necessary if adjusting the height resolves the issue. Removing the enema tubing (Choice D) is not the initial action indicated for cramping; adjusting the height is the more appropriate intervention.

5. A nurse is teaching a client who has hypertension about dietary modifications to help control blood pressure. Which of the following food choices should the nurse recommend as the best choice for the client to include in their diet?

A. 1 packet of reconstituted dry onion soup
B. 3 oz of lean cured ham
C. 3 oz of chicken breast
D. Â½ cup of canned baked beans

Correct answer: C

Rationale: For a client with hypertension, a low sodium diet is recommended to help control blood pressure. Among the food choices provided, the best option is 3 oz of chicken breast. Chicken breast is lean protein with lower sodium content compared to other choices. It is a healthier option for managing hypertension. Reconstituted dry onion soup (Choice A) and canned baked beans (Choice D) typically contain higher amounts of sodium, which can be detrimental for blood pressure management. Lean cured ham (Choice B) also tends to have a higher sodium content, making it less suitable for a client with hypertension.