ATI RN
Cardiovascular System Exam
1. Which of the following is a chronic lung disease that includes conditions such as chronic bronchitis and emphysema, characterized by obstructed airflow from the lungs?
- A. Chronic obstructive pulmonary disease (COPD)
- B. Pulmonary fibrosis
- C. Asthma
- D. Pneumonia
Correct answer: A
Rationale: The correct answer is A, Chronic obstructive pulmonary disease (COPD). COPD is a chronic lung disease that encompasses conditions like chronic bronchitis and emphysema. These conditions lead to obstructed airflow from the lungs, causing symptoms such as cough, shortness of breath, and wheezing. Choice B, Pulmonary fibrosis, involves scarring of the lung tissue, leading to breathing difficulties but is not specifically characterized by obstructed airflow like COPD. Asthma (Choice C) is a chronic condition characterized by airway inflammation and bronchoconstriction, not always resulting in obstructed airflow. Pneumonia (Choice D) is an acute infection of the lung tissue, causing symptoms like fever, cough, and difficulty breathing, but is not a chronic condition like COPD.
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. What is a condition where a blood clot forms in a vein, often in the legs, which can cause pain and swelling and may lead to serious complications if it travels to the lungs?
- A. Deep vein thrombosis (DVT)
- B. Pulmonary embolism
- C. Varicose veins
- D. Aneurysm
Correct answer: A
Rationale: Deep vein thrombosis (DVT) is the correct answer. It is a condition where a blood clot forms in a deep vein, usually in the legs. If the clot breaks loose and travels to the lungs, it can cause a pulmonary embolism. Varicose veins are enlarged, twisted veins that are not typically associated with blood clots. Aneurysm is the abnormal swelling or bulging of a blood vessel.
4. What is the condition where the heart's mitral valve does not close properly, allowing blood to leak backward into the left atrium?
- A. Mitral regurgitation
- B. Aortic stenosis
- C. Tricuspid regurgitation
- D. Pulmonary hypertension
Correct answer: A
Rationale: Mitral regurgitation is the condition where the heart's mitral valve does not close properly, allowing blood to leak backward into the left atrium. This can result in symptoms like shortness of breath and fatigue. Choices B, C, and D are incorrect because aortic stenosis, tricuspid regurgitation, and pulmonary hypertension involve different heart valves or conditions, not the mitral valve specifically.
5. Which of the following is a rare genetic disorder that affects the lungs, liver, and skin, causing the buildup of a specific protein that damages organs?
- A. Alpha-1 antitrypsin deficiency
- B. Cystic fibrosis
- C. Wegener's granulomatosis
- D. Marfan syndrome
Correct answer: A
Rationale: The correct answer is Alpha-1 antitrypsin deficiency. This disorder leads to the accumulation of a specific protein that can harm the lungs, liver, and skin. Choice B, Cystic fibrosis, is incorrect because it primarily affects the lungs and digestive system due to a defective gene. Choice C, Wegener's granulomatosis, is an autoimmune disease that involves inflammation of blood vessels, not protein buildup. Choice D, Marfan syndrome, is a connective tissue disorder impacting the heart, blood vessels, bones, and eyes, but not involving protein accumulation that damages organs.
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