ATI RN
Cardiovascular System Exam Questions And Answers
1. Which heart chamber receives oxygenated blood from the lungs and pumps it to the rest of the body?
- A. Left atrium
- B. Right atrium
- C. Left ventricle
- D. Right ventricle
Correct answer: C
Rationale: The correct answer is the left ventricle. It receives oxygenated blood from the left atrium and pumps it to the rest of the body through the aorta. The left atrium receives oxygenated blood from the lungs, the right atrium receives deoxygenated blood from the body, and the right ventricle pumps deoxygenated blood to the lungs.
2. Which of the following best defines the role of a nurse educator?
- A. Provide direct patient care
- B. Conduct research on nursing practices
- C. Develop and implement educational programs for nursing staff
- D. Supervise nursing staff
Correct answer: C
Rationale: The role of a nurse educator primarily involves developing and implementing educational programs for nursing staff. While providing direct patient care and supervising nursing staff are essential functions in healthcare, these tasks are not the primary responsibilities of a nurse educator. Conducting research on nursing practices is typically associated with the role of a nurse researcher, not a nurse educator.
3. Which of the following stores electrolytes and acts as an electrolyte pool?
- A. Brain - Kidneys
- B. Bone - Nails
- C. Bone - Liver
- D. Liver - Pancreas
Correct answer: B
Rationale: Bones store electrolytes and act as a reservoir, maintaining a balance of essential minerals like calcium and phosphate. The correct pair in this context is 'Bone - Nails.' Choices A, C, and D are incorrect because the brain, kidneys, liver, and pancreas perform other functions in the body and are not primarily responsible for storing electrolytes.
4. Which nursing measure would be most effective in helping the client cough and deep breathe after a cholecystectomy?
- A. Having the client take rapid, shallow breaths to decrease pain.
- B. Having the client lay on the left side while coughing and deep breathing.
- C. Teaching the client to use a folded blanket or pillow to splint the incision.
- D. Withholding pain medication so the client can be alert enough to follow the nurse's instructions.
Correct answer: C
Rationale: After a cholecystectomy, teaching the client to use a folded blanket or pillow to splint the incision will be most effective in helping the client cough and deep breathe. This technique provides support and reduces pain during coughing and deep breathing, promoting better lung expansion. Having the client take rapid, shallow breaths would not be effective in decreasing pain; instead, deep breathing is encouraged to prevent complications like atelectasis. Lying on the left side would limit lung expansion; therefore, the client should be positioned in semi-Fowler's or Fowler's position to maximize lung expansion. Withholding pain medication can lead to discomfort and reluctance to cough and deep breathe, hindering recovery.
5. What is the earliest age at which a satisfactory radial pulse can be taken in children?
- A. 1 year
- B. 2 years
- C. 3 years
- D. 6 years
Correct answer: C
Rationale: A satisfactory radial pulse can typically be taken starting at around 3 years of age, as younger children often have pulses that are too fast and irregular for accurate measurement.
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