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What is the condition where the arteries in the brain become blocked or narrowed, leading to reduced blood flow and a potential stroke?
- A. Cerebral atherosclerosis
- B. Coronary artery disease
- C. Pulmonary embolism
- D. Peripheral artery disease
Correct Answer: A
Rationale: The correct answer is A: Cerebral atherosclerosis. This condition specifically refers to the buildup of plaque in the arteries supplying the brain, leading to blockages or narrowing. Reduced blood flow in the brain can result in a stroke. Coronary artery disease (B) affects the heart's blood vessels, not the brain. Pulmonary embolism (C) involves a blockage in the arteries of the lungs. Peripheral artery disease (D) affects arteries outside of the heart and brain, usually in the limbs. Therefore, the correct answer is A as it directly relates to the blockages in the brain arteries leading to a potential stroke.
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As the charge nurse in a long-term-care (LTC) facility that has RN, LPN/LVN, and nursing assistant staff members, you have developed a plan for ongoing assessment of all residents with a diagnosis of heart failure. Which of these activities included in the plan is most appropriate to delegate to an LPN/LVN team leader?
- A. Weigh all residents with heart failure each morning.
- B. Listen to lung sounds and check for edema weekly.
- C. Review all heart failure medications with residents every month.
- D. Update activity plans for residents with heart failure every quarter.
Correct Answer: A
Rationale: Weighing residents is a routine task suitable for delegation to an LPN/LVN.
Which condition involves the body's immune system attacking the lungs and kidneys, causing severe respiratory and renal damage?
- A. Goodpasture syndrome
- B. Sarcoidosis
- C. Wegener's granulomatosis
- D. Interstitial lung disease
Correct Answer: A
Rationale: Step-by-step rationale for A being correct:
1. Goodpasture syndrome is an autoimmune disease where the body produces antibodies against collagen in the lungs and kidneys.
2. Antibodies attack the basement membrane of the lungs and kidneys, leading to severe respiratory and renal damage.
3. Symptoms include coughing up blood, difficulty breathing, and kidney failure.
4. Treatment involves immunosuppressive therapy and plasma exchange to remove harmful antibodies.
Summary:
- B: Sarcoidosis involves granulomas in multiple organs but typically not lung-kidney damage.
- C: Wegener's granulomatosis affects the respiratory tract and kidneys but involves inflammation, not antibodies against collagen.
- D: Interstitial lung disease is a broad term for various lung conditions but doesn't specifically involve the immune system attacking lungs and kidneys.
In penetrating heart injuries such as a stab wound, which of the following tears in the heart continues to bleed and does not seal with a clot?
- A. Pericardial tear
- B. Endocardial tear
- C. Epicardial tear
- D. Myocardial tear
Correct Answer: D
Rationale: Myocardial tears do not seal easily, leading to continued bleeding and potential complications.
The healthcare provider is preparing to administer heparin to a client. What lab value should be monitored?
- A. PT/INR
- B. aPTT
- C. Platelet count
- D. Hemoglobin
Correct Answer: B
Rationale: The correct lab value to monitor when administering heparin is aPTT (Activated Partial Thromboplastin Time). This is because heparin affects the intrinsic pathway of the clotting cascade, which is reflected in the aPTT value. Monitoring aPTT helps ensure the therapeutic range of heparin to prevent clotting complications. PT/INR and platelet count are not specific to heparin monitoring, and hemoglobin does not directly reflect heparin's anticoagulant effects.
This is a branch of the left coronary arteries which supplies the LEFT ATRIUM, posterior lateral surface of the left ventricle.
- A. Right coronary artery
- B. Left circumflex artery
- C. Left anterior descending artery
- D. Posterior descending artery
Correct Answer: B
Rationale: The correct answer is B, the Left circumflex artery. This artery branches off the left coronary artery and supplies the left atrium and the posterior lateral surface of the left ventricle. The Left anterior descending artery (C) supplies the anterior surface of the left ventricle. The Right coronary artery (A) supplies the right atrium and right ventricle. The Posterior descending artery (D) is a branch of the right coronary artery and supplies the posterior wall of the left ventricle. Therefore, B is the correct answer based on the specific areas supplied by each artery.