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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: The correct answer is A: Emphysema. Emphysema is a condition where the lung's alveoli are permanently enlarged and damaged, causing shortness of breath. This occurs due to the destruction of the alveoli walls, leading to decreased surface area for oxygen exchange. This results in difficulty breathing and reduced oxygen supply to the body. Bronchitis (B) is inflammation of the bronchial tubes, not alveoli damage. Atelectasis (C) is the collapse of lung tissue, not enlargement. Pulmonary fibrosis (D) is scarring of lung tissue, not alveoli enlargement.
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How might the blood pressure be affected in a client whose body mass index (BMI) is 31 (obese)?
- A. increased
- B. decreased
- C. no change
- D. a change either way
Correct Answer: A
Rationale: Obesity is strongly associated with increased blood pressure due to factors like insulin resistance and increased vascular resistance.
Two weeks ago, a 63-year-old patient with heart failure received a new prescription for carvedilol (Coreg) 3.125 mg orally. Upon evaluation in the outpatient clinic you find these symptoms. Which is of most concern?
- A. Complaints of increased fatigue and dyspnea.
- B. Weight increase of 0.5 kg in 2 weeks.
- C. Bibasilar crackles audible in the posterior chest.
- D. Sinus bradycardia, rate 50, as evidenced by ECG.
Correct Answer: D
Rationale: Bradycardia can impair cardiac output, especially in heart failure patients.
Which type of lung cancer begins in the cells lining the bronchi and bronchioles?
- A. Adenocarcinoma
- B. Small cell lung cancer
- C. Squamous cell carcinoma
- D. Mesothelioma
Correct Answer: A
Rationale: The correct answer is A: Adenocarcinoma. This type of lung cancer begins in the cells lining the bronchi and bronchioles. Adenocarcinoma is the most common type of lung cancer and often affects non-smokers. It is characterized by the growth of glandular cells in the lining of the lungs.
B: Small cell lung cancer typically originates in the bronchi, but it is characterized by small, round cells and tends to grow and spread quickly.
C: Squamous cell carcinoma starts in the squamous cells lining the airways and is associated with a history of smoking.
D: Mesothelioma is a cancer of the mesothelial cells that line the lungs, not specifically the bronchi or bronchioles. It is commonly linked to asbestos exposure.
A client on a beta blocker has a heart rate of 52 bpm. What is the nurse's priority action?
- A. Hold the beta blocker and notify the healthcare provider.
- B. Administer the beta blocker as ordered.
- C. Increase the dose of the beta blocker.
- D. Continue to monitor the client and reassess in 30 minutes.
Correct Answer: A
Rationale: The correct answer is A: Hold the beta blocker and notify the healthcare provider. With a heart rate of 52 bpm, the client may be experiencing bradycardia, a potential side effect of beta blockers. Holding the medication and informing the healthcare provider is crucial to prevent further complications. Administering the beta blocker (B) can exacerbate bradycardia. Increasing the dose (C) can further decrease the heart rate. Continuing to monitor (D) without intervention can lead to worsening of the bradycardia.
Which term refers to high blood pressure, a condition where the force of the blood against the artery walls is too high?
- A. Hypertension
- B. Hypotension
- C. Hyperlipidemia
- D. Diabetes
Correct Answer: A
Rationale: The correct answer is A: Hypertension. Hypertension refers to high blood pressure, where the force of blood against artery walls is too high. This condition can lead to serious health issues. Hypotension (B) is low blood pressure. Hyperlipidemia (C) is high levels of fats/lipids in the blood. Diabetes (D) is a condition related to blood sugar regulation, not blood pressure. Therefore, A is the correct answer as it specifically relates to the condition described in the question.