what are the early signs of hypokalemia on an ecg

ATI RN

ATI Capstone Adult Medical Surgical Assessment 2

1. What are the early signs of hypokalemia on an ECG?

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 sign of hypokalemia on an ECG. In hypokalemia, the T waves may flatten and eventually invert. Elevated ST segments are not typically associated with hypokalemia. Prominent U waves are seen in conditions like hypokalemia, but they are not considered an early sign. A widened QRS complex is more commonly associated with hyperkalemia rather than hypokalemia.

2. A patient who experienced an acute episode of gastritis should avoid which type of foods?

A. Avoid foods high in potassium
B. Avoid foods high in sodium
C. Increase exercise to reduce stress
D. Drink milk as a snack

Correct answer: A

Rationale: The correct answer is A: Avoid foods high in potassium. Potassium-rich foods can exacerbate gastritis symptoms by irritating the stomach lining. Sodium (choice B) is not directly related to gastritis symptoms. Increasing exercise (choice C) can be beneficial for overall health but may not directly impact gastritis. Drinking milk (choice D) can provide temporary relief for some individuals with gastritis due to its coating effect, but it is not a universal recommendation as it can worsen symptoms in some cases.

3. When planning care for a patient with diabetes insipidus, what should the nurse include in the plan?

A. Monitor serum albumin levels
B. Avoid alcohol
C. Teach the patient to increase fluids
D. Increase exercise to reduce stress

Correct answer: B

Rationale: The correct answer is B: 'Avoid alcohol.' Alcohol consumption can exacerbate dehydration in patients with diabetes insipidus, so it is essential to advise them to avoid alcohol. Monitoring serum albumin levels (choice A) is not directly related to managing diabetes insipidus. Teaching the patient to increase fluids (choice C) is not recommended as it can worsen the condition by further diluting the urine. Increasing exercise to reduce stress (choice D) is not a primary intervention for managing diabetes insipidus.

4. What is the first-line treatment for a patient experiencing wheezing and coughing due to an allergic reaction?

A. Albuterol via nebulizer
B. Methylprednisolone 100 mg IV
C. Cromolyn 20 mg via nebulizer
D. Aminophylline 500 mg IV

Correct answer: A

Rationale: The correct answer is A: Albuterol via nebulizer. Albuterol is the first-line treatment for wheezing caused by an allergic reaction as it quickly opens the airways, providing rapid relief. Choice B, Methylprednisolone 100 mg IV, is a systemic corticosteroid that may be used in severe cases to reduce inflammation but is not the initial treatment for acute wheezing. Choice C, Cromolyn 20 mg via nebulizer, is a mast cell stabilizer that is more commonly used for prophylaxis rather than acute relief in allergic conditions. Choice D, Aminophylline 500 mg IV, is a bronchodilator that is less commonly used now due to its narrow therapeutic window and potential for toxicity, making it less preferred than Albuterol for initial treatment of wheezing.

5. 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.