the approximate stroke volume
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Nursing Elites

ATI RN

Physical Exam Cardiovascular System

1. What is the approximate stroke volume of the heart?

Correct answer: B

Rationale: The correct answer is B: Approximately 70 mL of blood per beat. The stroke volume of the heart is typically around 70 mL, indicating the volume of blood ejected from the left ventricle with each contraction. Choices A, C, and D are incorrect as they do not represent the standard approximate stroke volume of the heart, which is around 70 mL per beat.

2. Which type of medication helps to lower cholesterol levels in the blood?

Correct answer: A

Rationale: Statins are a type of medication specifically designed to lower cholesterol levels in the blood by inhibiting an enzyme involved in cholesterol production. Beta-blockers are mainly used to treat conditions like high blood pressure and heart problems by reducing the heart rate and workload. ACE inhibitors are used to manage conditions like high blood pressure and heart failure by relaxing blood vessels. Diuretics are medications that help the body get rid of excess salt and water by increasing urine production. Therefore, in the context of lowering cholesterol levels, statins are the most appropriate choice.

3. The client is given an alpha agonist. What might it be used for?

Correct answer: A

Rationale: Alpha agonists are used for hemostasis to help control bleeding by constricting blood vessels, leading to decreased blood flow to the area. Choices B, C, and D are incorrect as alpha agonists do not typically dilate arteries, dilate veins, or decrease afterload.

4. What is a condition where the coronary arteries become narrowed or blocked, leading to reduced blood flow to the heart muscle?

Correct answer: A

Rationale: The correct answer is A, Coronary artery disease (CAD). CAD is a condition where the coronary arteries become narrowed or blocked, leading to reduced blood flow to the heart muscle and an increased risk of heart attack. Choice B, Atherosclerosis, is a related condition involving the buildup of fats, cholesterol, and other substances in and on the artery walls, but it is not specific to the coronary arteries. Choices C and D, Stroke and Peripheral artery disease, respectively, involve different arteries and conditions, not directly related to the narrowing or blockage of the coronary arteries.

5. The nurse is caring for a client with atrial fibrillation on dabigatran (Pradaxa). What is the most important instruction to give to the client?

Correct answer: B

Rationale: The most important instruction to give to a client on dabigatran (Pradaxa) is not to miss a dose and take it at the same time each day. This is crucial for maintaining the anticoagulant effect of the medication. Choice A is not necessary as dabigatran does not need to be taken with food. Choice C is important but not as crucial as ensuring proper dosing. Choice D is also important but falls behind in priority compared to maintaining consistent dosing.

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