ATI RN
Cardiovascular System Exam Questions
1. What is the amount of blood the heart pumps through the circulatory system in a minute?
- A. Cardiac output
- B. Stroke volume
- C. End-diastolic volume
- D. Ejection fraction
Correct answer: A
Rationale: The correct answer is A: Cardiac output. Cardiac output is the volume of blood pumped by the heart per minute. It is calculated by multiplying the stroke volume (the amount of blood pumped out of the heart in each beat) by the heart rate (number of heartbeats per minute). This question specifically asks for the total amount of blood pumped through the circulatory system in a minute, which is represented by cardiac output. Choices B, C, and D are incorrect because stroke volume refers to the amount of blood pumped out of the heart in each beat, end-diastolic volume is the volume of blood in the heart at the end of diastole, and ejection fraction is the percentage of blood pumped out of the heart with each contraction, not the total amount pumped per minute.
2. The healthcare provider is preparing medication instructions for a child who has undergone a kidney transplant and is prescribed cyclosporine. The parents ask the provider about the reason for the cyclosporine. Which rationale for this medication should the healthcare provider include in the response?
- A. Suppress rejection
- B. Decrease pain
- C. Improve circulation
- D. Boost immunity
Correct answer: A
Rationale: Cyclosporine is used to suppress the immune system and prevent rejection of the transplanted kidney. It helps to reduce the risk of the body attacking and rejecting the new organ. This medication is crucial in ensuring the success of the kidney transplant by keeping the immune system in check.
3. A client with pre-dialysis end-stage kidney disease is being taught about diet. Which of the following instructions should the nurse include?
- A. Increase intake of dietary phosphorus.
- B. Eliminate foods high in protein from your diet.
- C. Reduce intake of foods high in potassium.
- D. Increase intake of sodium-containing foods.
Correct answer: C: "Reduce intake of foods high in potassium."
Rationale: In pre-dialysis end-stage kidney disease, reducing intake of foods high in potassium is crucial as impaired kidney function can lead to potassium buildup in the blood, which can be dangerous. High potassium levels can cause irregular heartbeats and even cardiac arrest. Therefore, advising the client to reduce potassium-rich foods is essential to prevent complications. Choices A, B, and D are incorrect. Increasing dietary phosphorus, eliminating foods high in protein, or increasing sodium-containing foods are not appropriate recommendations for a client with pre-dialysis end-stage kidney disease as they can exacerbate the condition.
4. A client practicing Orthodox Judaism informs the nurse they are observing the Passover holiday. Which action should the nurse include in the plan of care?
- A. Provide chicken with cream sauce
- B. Avoid serving fish with fins and scales
- C. Provide unleavened bread
- D. Avoid serving foods containing lamb
Correct answer: C
Rationale: During the Passover holiday, individuals practicing Orthodox Judaism follow dietary restrictions that include consuming unleavened bread. This symbolizes the haste with which the Israelites left Egypt and the lack of time for bread to rise. Providing chicken with cream sauce (Choice A) is not aligned with Passover dietary restrictions. Avoiding serving fish with fins and scales (Choice B) is a general dietary law in Judaism but not specific to Passover. Similarly, avoiding foods containing lamb (Choice D) is not a specific requirement during Passover.
5. A client has been prescribed a calcium channel blocker for angina. The nurse knows this medication should NOT be used with caution in combination with which drug classes?
- A. NSAIDs
- B. Cardiac glycosides
- C. Beta blockers
- D. None of the above
Correct answer: C
Rationale: Calcium channel blockers and beta blockers should be used with caution together because they can both suppress heart function, potentially leading to bradycardia, heart block, or heart failure. NSAIDs and cardiac glycosides do not have significant interactions with calcium channel blockers in the same way, so they are not typically a cause for concern when combined.
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