ATI RN
Cardiovascular System Exam Questions
1. Which condition is characterized by the narrowing or blockage of arteries that supply blood to the heart by plaque?
- A. Coronary artery disease (CAD)
- B. Atherosclerosis
- C. Peripheral artery disease
- D. Congestive heart failure
Correct answer: A
Rationale: The correct answer is A, Coronary artery disease (CAD). CAD specifically refers to the condition where the arteries supplying blood to the heart become narrowed or blocked by plaque buildup. Choice B, Atherosclerosis, is a general term for the hardening and narrowing of arteries due to plaque buildup but does not specifically mention the heart. Choice C, Peripheral artery disease, involves narrowing of arteries that supply blood to areas other than the heart. Choice D, Congestive heart failure, is a condition where the heart is unable to pump blood effectively but is not primarily caused by narrowed or blocked arteries.
2. Which of the following is a correct method of safely using a sterile dressing?
- A. Reuse a dressing that appears clean.
- B. Discard a dressing after 24 hours of use.
- C. Change a dressing only if there is visible drainage.
- D. Change a dressing every 4 hours regardless of condition.
Correct answer: B
Rationale: The correct method of safely using a sterile dressing is to discard it after 24 hours of use. This is important to prevent contamination and promote proper wound healing. Choice A is incorrect because reusing a dressing, even if it appears clean, can introduce contaminants. Choice C is incorrect as dressing changes should not be based solely on visible drainage; they should be done within the recommended time frame. Choice D is incorrect because changing a dressing every 4 hours, regardless of its condition, can lead to unnecessary wastage and disturbance to the wound healing process.
3. The charge nurse in the pediatric unit is teaching nursing students about pyloric stenosis. A student asks what causes pyloric stenosis. How should the nurse respond?
- A. One portion of the intestines invaginates or telescopes into another
- B. Hypertrophy of the circular pylorus muscle
- C. Relaxed cardiac sphincter
- D. Absent ganglion cells in the colon
Correct answer: B
Rationale: Pyloric stenosis is caused by the hypertrophy (thickening) of the circular muscle of the pylorus, leading to obstruction. Choice A is incorrect as it describes intussusception, not pyloric stenosis. Choice C is incorrect as a relaxed cardiac sphincter is related to gastroesophageal reflux. Choice D is incorrect as it describes Hirschsprung's disease, not pyloric stenosis.
4. Which of the following blood tests should be performed before a blood transfusion?
- A. Prothrombin and coagulation time
- B. Blood typing and cross-matching
- C. Bleeding and clotting time
- D. Complete blood count (CBC) and electrolyte levels
Correct answer: B
Rationale: Before administering a blood transfusion, it is crucial to perform blood typing and cross-matching to ensure compatibility between the donor's blood and the recipient's blood. This process helps prevent adverse reactions such as transfusion reactions, which can be life-threatening. Prothrombin and coagulation time, bleeding and clotting time, as well as CBC and electrolyte levels are important tests in other clinical contexts, but for blood transfusions, blood typing and cross-matching are essential to ensure patient safety.
5. Listed below are five categories that identify the responsibilities of the practical nurse manager in personnel management. Which of these categories is most appropriate for the task 'Know what your soldiers are doing during duty hours'?
- A. Accountability
- B. Personal/professional development
- C. Individual training
- D. Military appearance/physical condition
Correct answer: A
Rationale: The correct answer is A: Accountability. Accountability involves knowing what individuals are doing during duty hours, ensuring they are responsible and answerable for their actions. Personal/professional development (choice B) refers to enhancing one's skills and knowledge, individual training (choice C) focuses on specific training needs, and military appearance/physical condition (choice D) pertains to the physical presentation and fitness of individuals, not directly related to knowing what they are doing during duty hours.
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