Which of the following is a genetic disorder that causes thick, sticky mucus to build up in the lungs and digestive system, leading to severe respiratory and digestive problems?
- A. Cystic fibrosis
- B. Pulmonary fibrosis
- C. Pulmonary edema
- D. Bronchiectasis
Correct Answer: A
Rationale: The correct answer is A: Cystic fibrosis. This genetic disorder is characterized by the buildup of thick, sticky mucus in the lungs and digestive system. Step 1: Cystic fibrosis specifically mentions the thick, sticky mucus, which is a key characteristic of the disorder. Step 2: Pulmonary fibrosis is a different condition where lung tissue becomes scarred and stiff. Step 3: Pulmonary edema is the accumulation of fluid in the lungs, not mucus. Step 4: Bronchiectasis is a condition where the airways in the lungs become damaged and widened, not specifically related to thick mucus buildup.
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Which serum lipid elevation, along with elevated LDL, is strongly associated with CAD?
- A. Apolipoproteins
- B. Fasting triglycerides
- C. Total serum cholesterol
- D. High-density lipoprotein (HDL)
Correct Answer: B
Rationale: Elevated triglycerides increase CAD risk.
What is a severe allergic reaction that can cause difficulty breathing and shock?
- A. Anaphylaxis
- B. Asthma attack
- C. Bronchospasm
- D. Hypersensitivity
Correct Answer: A
Rationale: The correct answer is A: Anaphylaxis. Anaphylaxis is a severe allergic reaction that can cause difficulty breathing and shock due to the body's extreme immune response to an allergen. It involves a systemic release of histamine and other chemicals leading to symptoms like swelling, hives, and a drop in blood pressure. Asthma attack (B) is a respiratory condition characterized by airway inflammation and narrowing, but it is not necessarily related to an allergic reaction. Bronchospasm (C) refers to the sudden constriction of the muscles lining the airways, which can occur in asthma or other respiratory conditions, but it is not specific to an allergic reaction. Hypersensitivity (D) is a general term for exaggerated immune responses, including allergies, but it does not specifically describe the severe and potentially life-threatening nature of anaphylaxis.
What is the condition where the pericardium, the sac surrounding the heart, becomes inflamed, leading to chest pain and other symptoms?
- A. Pericarditis
- B. Myocarditis
- C. Endocarditis
- D. Pulmonary hypertension
Correct Answer: A
Rationale: Rationale:
1. Pericarditis is the inflammation of the pericardium, causing chest pain.
2. Myocarditis is inflammation of the heart muscle, not the pericardium.
3. Endocarditis is inflammation of the inner lining of the heart chambers.
4. Pulmonary hypertension is high blood pressure in the lungs, unrelated to pericardial inflammation.
In conclusion, pericarditis is the correct answer as it specifically refers to the inflammation of the pericardium, leading to chest pain.
The nurse is teaching a client about side effects of ACE inhibitors. What is the most important side effect to monitor?
- A. Cough
- B. Hyperkalemia
- C. Hypotension
- D. Dizziness
Correct Answer: A
Rationale: The correct answer is A: Cough. ACE inhibitors can cause a persistent, dry cough due to bradykinin accumulation. It is important to monitor for this as it can indicate potential angioedema, a serious adverse effect. Hyperkalemia (B) is a potential side effect but may not be as immediate or common as cough. Hypotension (C) is a common side effect but not as crucial to monitor as cough. Dizziness (D) is a common side effect but not as significant as cough in terms of potential complications.
What is a surgical procedure where a blood vessel is grafted to bypass a blocked coronary artery, improving blood flow to the heart muscle?
- A. Coronary artery bypass graft (CABG)
- B. Valve replacement
- C. Angioplasty
- D. Endarterectomy
Correct Answer: A
Rationale: The correct answer is A: Coronary artery bypass graft (CABG). This surgical procedure involves grafting a blood vessel to bypass a blocked coronary artery, improving blood flow to the heart muscle. It is used to treat severe coronary artery disease. Valve replacement (B) is a surgery to replace heart valves, not to bypass blocked arteries. Angioplasty (C) involves inserting a balloon to widen a narrowed artery, not bypassing it. Endarterectomy (D) is a procedure to remove plaque from an artery, not bypassing a blocked coronary artery.