ATI RN
Physical Exam Cardiovascular System
1. What is a condition where the lung's alveoli are permanently enlarged and damaged, leading to shortness of breath?
- A. Emphysema
- B. Bronchitis
- C. Atelectasis
- D. Pulmonary fibrosis
Correct answer: A
Rationale: Emphysema is the correct answer. It is a chronic lung condition characterized by the permanent enlargement and damage of the alveoli, leading to shortness of breath and impaired oxygen exchange. Bronchitis is the inflammation of the bronchial tubes, not specifically related to alveolar damage. Atelectasis is the collapse of lung tissue, not enlargement. Pulmonary fibrosis involves scarring and thickening of lung tissue, different from the alveolar damage seen in emphysema.
2. Which heart chamber ejects blood into the systemic arterial circulation via the aorta?
- A. Right atrium
- B. Left atrium
- C. Right ventricle
- D. Left ventricle
Correct answer: D
Rationale: The correct answer is D, Left ventricle. The left ventricle pumps oxygenated blood into the systemic circulation via the aorta. This chamber receives oxygen-rich blood from the left atrium and contracts forcefully to propel blood into the aorta, distributing it to the body. The other options, right atrium, left atrium, and right ventricle, do not directly eject blood into the systemic arterial circulation via the aorta. The right atrium receives deoxygenated blood from the body, the left atrium receives oxygenated blood from the lungs, and the right ventricle pumps blood to the lungs for oxygenation.
3. Which test measures how much and how quickly you can move air out of your lungs?
- A. Spirometry
- B. Peak flow meter
- C. Lung volume test
- D. Arterial blood gas
Correct answer: A
Rationale: The correct answer is A, Spirometry. Spirometry is a common pulmonary function test that measures lung function by assessing the amount (volume) and speed (flow) of air that can be inhaled and exhaled. This test helps in diagnosing conditions like asthma, chronic obstructive pulmonary disease (COPD), and other lung diseases. Peak flow meter (choice B) measures the maximum speed at which a person can exhale air, mainly used in asthma management. Lung volume test (choice C) evaluates the total amount of air the lungs can hold. Arterial blood gas (choice D) measures the levels of oxygen and carbon dioxide in the blood, providing information on how well the lungs are functioning in gas exchange, but it does not specifically measure the amount and speed of air movement in and out of the lungs like spirometry does.
4. The nurse is caring for a client with atrial fibrillation on dabigatran (Pradaxa). What is the most important instruction to give to the client?
- A. Take the medication with food to prevent stomach upset.
- B. Do not miss a dose and take it at the same time each day.
- C. Avoid consuming alcohol while on this medication.
- D. Monitor for signs of bleeding.
Correct answer: B
Rationale: The most important instruction to give to a client on dabigatran (Pradaxa) is not to miss a dose and take it at the same time each day. This is crucial for maintaining the anticoagulant effect of the medication. Choice A is not necessary as dabigatran does not need to be taken with food. Choice C is important but not as crucial as ensuring proper dosing. Choice D is also important but falls behind in priority compared to maintaining consistent dosing.
5. Which chronic respiratory condition is characterized by the narrowing and inflammation of the airways, leading to difficulty breathing?
- A. Asthma
- B. COPD
- C. Bronchitis
- D. Pneumonia
Correct answer: A
Rationale: Asthma is the correct answer. It is a chronic respiratory condition where the airways become inflamed and narrowed, leading to episodes of wheezing, breathlessness, chest tightness, and coughing. Asthma is characterized by reversible airflow obstruction, differentiating it from COPD, which involves irreversible airflow limitation. Bronchitis is an inflammation of the bronchial tubes without the same reversible airflow obstruction seen in asthma. Pneumonia is an infection of the lung tissue and does not involve chronic inflammation and narrowing of the airways like asthma.
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