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What is a condition where the blood supply to the brain is interrupted or reduced, preventing brain tissue from getting oxygen and nutrients?
- A. Stroke
- B. Transient ischemic attack (TIA)
- C. Myocardial infarction
- D. Angina
Correct Answer: A
Rationale: The correct answer is A: Stroke. A stroke occurs when the blood supply to the brain is interrupted or reduced, leading to a lack of oxygen and nutrients to brain tissue. This can result in brain cell damage or death. A transient ischemic attack (TIA) is a temporary interruption of blood flow to the brain with similar symptoms but resolves quickly without causing permanent damage. Myocardial infarction is a heart attack caused by blockage of blood flow to the heart muscle, not the brain. Angina is chest pain due to reduced blood flow to the heart, not the brain. Thus, only a stroke directly involves the interruption of blood supply to the brain, making it the correct answer.
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What is a condition where the walls of the arteries become thickened and stiff, often due to the buildup of plaque, leading to reduced blood flow?
- A. Atherosclerosis
- B. Angina
- C. Hypertension
- D. Arrhythmia
Correct Answer: A
Rationale: Atherosclerosis is the correct answer because it specifically refers to the condition where artery walls become thickened and stiff due to plaque buildup. Plaque accumulation narrows the arteries, reducing blood flow and potentially leading to serious complications. Angina (B) is chest pain caused by reduced blood flow to the heart but is not a direct result of arterial thickening. Hypertension (C) is high blood pressure and does not involve artery wall thickening. Arrhythmia (D) is an irregular heart rhythm and is not related to arterial stiffness. Thus, Atherosclerosis (A) best fits the description provided in the question.
The nurse is caring for a client on digoxin. What is the most important assessment before administering this medication?
- A. Check the client's heart rate.
- B. Check the client's blood pressure.
- C. Check the client's respiratory rate.
- D. Check the client's oxygen saturation.
Correct Answer: A
Rationale: The correct answer is A: Check the client's heart rate. Before administering digoxin, it is crucial to assess the client's heart rate as digoxin can cause bradycardia or arrhythmias. Monitoring the heart rate helps to determine if the client is at risk of experiencing these adverse effects. Checking blood pressure, respiratory rate, or oxygen saturation is important but not as crucial as assessing the heart rate when administering digoxin. Bradycardia is a common adverse effect of digoxin, so assessing the heart rate is the priority.
What is a blood clot that forms in a vein, often in the legs, and can cause serious complications if it travels to the lungs?
- A. Deep vein thrombosis (DVT)
- B. Pulmonary embolism
- C. Varicose veins
- D. Atherosclerosis
Correct Answer: A
Rationale: The correct answer is A: Deep vein thrombosis (DVT). DVT is a blood clot that forms in a deep vein, commonly in the legs. It can lead to serious complications if the clot dislodges and travels to the lungs, causing a pulmonary embolism. Varicose veins (C) are enlarged, twisted veins near the surface of the skin, not involving deep veins. Atherosclerosis (D) is the build-up of plaque in arteries, not related to vein clot formation. Pulmonary embolism (B) is a complication of DVT, not the initial clot formation in a vein.
What is a chronic condition where the heart is unable to pump blood efficiently, leading to fluid buildup in the lungs and other parts of the body?
- A. Heart failure
- B. Cardiomyopathy
- C. Pericarditis
- D. Aortic stenosis
Correct Answer: A
Rationale: Step 1: Heart failure is a chronic condition where the heart is unable to pump blood efficiently.
Step 2: This inefficiency leads to fluid buildup in the lungs (pulmonary congestion) and other parts of the body.
Step 3: Cardiomyopathy is a broad term for diseases that affect the heart muscle but may not necessarily result in heart failure.
Step 4: Pericarditis is inflammation of the pericardium, the sac surrounding the heart, not directly related to heart pumping efficiency.
Step 5: Aortic stenosis is a condition where the aortic valve narrows, affecting blood flow from the heart but not necessarily leading to heart failure.
Nurse's role in management of client with permanent pacemaker implant.
- A. Monitoring
- B. Education
- C. Both A and B
- D. None of the above
Correct Answer: C
Rationale: Nurses monitor device function and educate patients about care.