Nokea
When reviewing a patient's four-week diet history, the cardiac-vascular nurse identifies a pattern of high-calorie intake on Monday, Wednesday, and Friday nights. The patient states that their spouse recently started taking a night class on those evenings at a local university. The patient's diet history indicates:
- A. a disabling family coping behavior.
- B. a lack of dietary instruction.
- C. a need for cooking classes.
- D. an individual coping behavior.
Correct Answer: D
Rationale: The eating pattern appears to be an individual coping behavior related to the spouse's absence.
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Which type of medication helps to reduce blood pressure by relaxing the blood vessels?
- A. Calcium channel blocker
- B. ACE inhibitor
- C. Beta-blocker
- D. Diuretic
Correct Answer: A
Rationale: The correct answer is A: Calcium channel blocker. These medications work by blocking calcium from entering the smooth muscle cells of the blood vessels, causing them to relax and dilate, which leads to a decrease in blood pressure. ACE inhibitors (B) work by blocking the conversion of angiotensin I to angiotensin II, causing blood vessels to dilate. Beta-blockers (C) decrease heart rate and contractility but do not directly relax blood vessels. Diuretics (D) increase urine output to lower blood volume and pressure but do not directly act on blood vessels.
What is the procedure where a device is used to shock the heart back into a normal rhythm during a life-threatening arrhythmia?
- A. Defibrillation
- B. Cardioversion
- C. Echocardiogram
- D. Ablation
Correct Answer: A
Rationale: Defibrillation is the correct answer as it is the procedure where an electrical device delivers a shock to the heart to restore normal rhythm during a life-threatening arrhythmia. This shock helps reset the heart's electrical activity. Cardioversion (B) is similar but used for less severe arrhythmias. Echocardiogram (C) is an imaging test to assess heart function, not a treatment. Ablation (D) is a procedure to destroy abnormal heart tissue causing arrhythmias but not used for immediate life-threatening situations like defibrillation.
What is a surgical procedure to replace a damaged or diseased heart valve with a prosthetic valve?
- A. Valve replacement
- B. Angioplasty
- C. Stent placement
- D. Bypass surgery
Correct Answer: A
Rationale: The correct answer is A: Valve replacement. This surgical procedure involves replacing a damaged or diseased heart valve with a prosthetic valve to restore proper heart function. It is specifically targeted at addressing heart valve issues, making it the most appropriate choice. Angioplasty (B) is a procedure to open blocked arteries, not related to heart valve replacement. Stent placement (C) involves inserting a mesh tube to keep arteries open, not addressing heart valve issues. Bypass surgery (D) is performed to improve blood flow to the heart muscle, not focused on replacing heart valves. Thus, A is the correct choice for the given question.
Which condition is characterized by the sudden onset of shortness of breath, often occurring at night and associated with heart failure?
- A. Paroxysmal nocturnal dyspnea
- B. Sleep apnea
- C. Orthopnea
- D. Dyspnea
Correct Answer: A
Rationale: The correct answer is A: Paroxysmal nocturnal dyspnea. This condition is characterized by sudden onset of shortness of breath at night, often associated with heart failure. It occurs when a person lies down due to fluid redistribution in the body, leading to increased pressure on the lungs and heart. Sleep apnea (B) is a separate condition characterized by pauses in breathing during sleep. Orthopnea (C) is difficulty breathing while lying flat, relieved by sitting up. Dyspnea (D) is a general term for shortness of breath but does not specifically refer to the sudden onset at night associated with heart failure.
This is a chronic condition where the heart is unable to pump enough blood to meet the body's needs.
- A. Heart failure
- B. Cardiomyopathy
- C. Myocarditis
- D. Pericarditis
Correct Answer: A
Rationale: The correct answer is A: Heart failure. In heart failure, the heart is unable to pump enough blood to meet the body's needs, leading to symptoms such as shortness of breath and fatigue. This condition can result from various causes like hypertension or heart attacks. Cardiomyopathy (B) refers to diseases of the heart muscle, which can lead to heart failure but is not the same thing. Myocarditis (C) is inflammation of the heart muscle, and pericarditis (D) is inflammation of the pericardium, both of which can cause heart failure but are not the primary condition described in the question.