what ecg changes are expected in a patient with hypokalemia

ATI RN

ATI Capstone Adult Medical Surgical Assessment 2

1. What ECG changes are expected in a patient with hypokalemia?

A. Flattened T waves
B. Prominent U waves
C. Widened QRS complexes
D. Tall T waves

Correct answer: A

Rationale: Flattened T waves are an early indicator of hypokalemia on an ECG. Hypokalemia primarily presents with flattened T waves, not prominent U waves, widened QRS complexes, or tall T waves. Prominent U waves are associated with hypokalemia only in severe cases. Widened QRS complexes are more indicative of hyperkalemia, while tall T waves are seen in hyperkalemia as well.

2. What does continuous bubbling in the chest tube water seal chamber indicate?

A. An air leak
B. Normal chest tube function
C. A blocked chest tube
D. Continuous drainage from the chest tube

Correct answer: A

Rationale: Continuous bubbling in the water seal chamber indicates an air leak in the chest tube system. This occurs when air is entering the system from the outside, preventing the lung from fully re-expanding. Choice B is incorrect because continuous bubbling is not a sign of normal chest tube function. Choice C is incorrect because a blocked chest tube would typically exhibit no bubbling or fluctuation in the water seal chamber. Choice D is incorrect as continuous drainage would not cause bubbling in the water seal chamber.

3. 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.

4. What is the priority intervention for a patient with unstable angina?

A. Administer nitroglycerin
B. Establish IV access
C. Auscultate heart sounds
D. Administer aspirin

Correct answer: A

Rationale: The correct answer is to administer nitroglycerin. Nitroglycerin is the priority intervention for a patient with unstable angina as it helps dilate blood vessels, improve blood flow to the heart, relieve chest pain, and prevent further cardiac damage. Establishing IV access (choice B) may be important but is not the priority over administering nitroglycerin in this scenario. Auscultating heart sounds (choice C) and administering aspirin (choice D) are also important aspects of managing unstable angina, but they are not the immediate priority intervention when a patient is experiencing chest pain.

5. What dietary changes should be implemented for a patient with GERD?

A. Avoid mint and spicy foods
B. Eat large meals before bedtime
C. Consume liquids with meals
D. Drink milk as a snack

Correct answer: A

Rationale: The correct answer is A: Avoid mint and spicy foods. Patients with GERD should avoid mint and spicy foods because they can increase gastric acid production, exacerbating symptoms. Choice B is incorrect because eating large meals before bedtime can worsen GERD symptoms due to lying down with a full stomach. Choice C is incorrect as consuming liquids with meals can lead to increased pressure on the lower esophageal sphincter, promoting acid reflux. Choice D is also incorrect as drinking milk as a snack is not recommended for GERD patients, as it may temporarily soothe symptoms but can ultimately stimulate acid production.