ATI RN
Physical Exam Cardiovascular System
1. What is a severe and often sudden allergic reaction that can lead to breathing difficulties and anaphylactic shock?
- A. Anaphylaxis
- B. Allergic rhinitis
- C. Bronchospasm
- D. Asthma attack
Correct answer: A
Rationale: Anaphylaxis is the correct answer. It is a severe allergic reaction that can result in difficulty breathing, a drop in blood pressure, and even anaphylactic shock if not treated promptly. Choice B, allergic rhinitis, is characterized by symptoms such as a runny or stuffy nose, sneezing, and itching. Choice C, bronchospasm, refers to the sudden constriction of the muscles in the walls of the bronchioles, leading to breathing difficulties. Choice D, asthma attack, involves the inflammation and narrowing of the airways, resulting in symptoms like wheezing, coughing, and chest tightness.
2. The nurse is caring for a client on heparin. What is the most important lab value to monitor?
- A. aPTT
- B. INR
- C. Platelet count
- D. Hemoglobin
Correct answer: A
Rationale: The correct answer is A: aPTT. When a client is on heparin therapy, monitoring the aPTT is crucial. The aPTT helps assess the effectiveness of heparin in preventing blood clots and guides dose adjustments as needed. INR (Choice B) is more commonly used to monitor warfarin therapy. Platelet count (Choice C) is important to assess for potential bleeding disorders or thrombocytopenia but is not the primary lab value to monitor for heparin therapy. Hemoglobin (Choice D) is essential for assessing oxygen-carrying capacity but is not the most important lab value to monitor when a client is on heparin.
3. The client on nitroglycerin patches reports dizziness when standing up. What is the nurse’s best response?
- A. Advise the client to rise slowly to prevent dizziness.
- B. Instruct the client to discontinue the nitroglycerin patches.
- C. Encourage the client to rest and avoid physical activity.
- D. Suggest the client take an over-the-counter antiemetic.
Correct answer: A
Rationale: The correct answer is to advise the client to rise slowly to prevent dizziness. Dizziness when standing up can be a sign of orthostatic hypotension, a common side effect of nitroglycerin. Rising slowly can help minimize this symptom. Instructing the client to discontinue the nitroglycerin patches (Choice B) is not appropriate without consulting a healthcare provider as sudden discontinuation can lead to adverse effects. Encouraging the client to rest and avoid physical activity (Choice C) does not address the specific issue of orthostatic hypotension. Suggesting the client take an over-the-counter antiemetic (Choice D) is not indicated for dizziness related to orthostatic hypotension.
4. Which condition is an infection that inflames the air sacs in one or both lungs, which may fill with fluid?
- A. Pneumonia
- B. Bronchitis
- C. Tuberculosis
- D. Cystic fibrosis
Correct answer: A
Rationale: The correct answer is A, Pneumonia. Pneumonia is an infection that inflames the air sacs in the lungs, which may fill with fluid or pus, causing symptoms like cough, fever, and difficulty breathing. Bronchitis (choice B) is an inflammation of the bronchial tubes, not the air sacs in the lungs. Tuberculosis (choice C) is a bacterial infection that primarily affects the lungs but does not always cause fluid accumulation in the air sacs. Cystic fibrosis (choice D) is a genetic disorder that affects the lungs but does not directly cause inflammation of the air sacs with fluid.
5. Which artery supplies the right atrium, right ventricle, a portion of the septum, SA node, AV node, and inferior portion of the left ventricle?
- A. Right coronary artery
- B. Left circumflex artery
- C. Posterior descending artery
- D. Aortic artery
Correct answer: A
Rationale: The correct answer is the right coronary artery. It supplies essential areas of the heart, including the right atrium, right ventricle, a portion of the septum, SA node, AV node, and the inferior portion of the left ventricle. The left circumflex artery primarily supplies the left atrium and lateral wall of the left ventricle, not the mentioned areas. The posterior descending artery supplies the inferior wall of the left ventricle, not the right side. The aortic artery is a general term and does not specifically refer to an artery that supplies the mentioned areas.
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