1.
The following is true of systolic heart failure.
Correct Answer
A. The primary cause of systolic heart failure is coronary artery disease causing impaired heart muscle contraction
Explanation
The correct answer is "All of the above." This is because systolic heart failure can be caused by coronary artery disease, which impairs the heart muscle's ability to contract. It can also be a ventricle filling problem, where the ventricles do not fill with enough blood. Additionally, an ejection fraction of 55% or lower is considered indicative of systolic heart failure. Therefore, all of these statements are true regarding systolic heart failure.
2.
The following is true of diastolic heart failure.
Correct Answer
A. It is more common in women with hypertension
Explanation
Diastolic heart failure refers to a condition where the ventricles of the heart have difficulty relaxing and filling with blood during the diastole phase of the cardiac cycle. This condition is more commonly seen in women who have hypertension, or high blood pressure. Hypertension can lead to structural changes in the heart, such as thickening of the ventricular walls, which can impair diastolic function. Therefore, the correct answer is that diastolic heart failure is more common in women with hypertension.
3.
Patients with anemia and renal failure are more likely to experience rapid exacerbations.
Correct Answer
A. True
Explanation
Anemia is a condition characterized by a decrease in the number of red blood cells or hemoglobin in the blood, leading to reduced oxygen-carrying capacity. Renal failure is a condition where the kidneys are unable to adequately filter waste products from the blood. Both anemia and renal failure can cause a decrease in oxygen supply to various organs and tissues in the body. This lack of oxygen can further worsen the renal function and lead to rapid exacerbations of symptoms in patients with both conditions. Therefore, it is true that patients with anemia and renal failure are more likely to experience rapid exacerbations.
4.
Heart failure is known to worsen in the following conditions
Correct Answer
E. All of the above
Explanation
Heart failure is a condition where the heart is unable to pump blood effectively. Infections like a UTI or pneumonia can put additional strain on the heart, causing it to worsen. Medication non-adherence can also lead to worsening of heart failure as the prescribed medications help to manage the condition. Anemia, a condition characterized by a decrease in red blood cells, can further compromise the heart's ability to function properly. Atrial fibrillation, an irregular heart rhythm, can also contribute to the worsening of heart failure. Therefore, all of the mentioned conditions can exacerbate heart failure.
5.
Which of the following patient statements would alert you to an exacerbation of heart failure.
Correct Answer
F. All of the above
Explanation
All of the above patient statements would alert you to an exacerbation of heart failure. Coughing can be a symptom of fluid accumulation in the lungs, which is a common sign of heart failure worsening. A change in usual shortness of breath (SOB) can indicate that the heart is not pumping effectively, causing fluid to build up in the lungs. Palpitations may be a result of an irregular heartbeat, which can be a sign of heart failure exacerbation. Increased fatigue can occur when the heart is unable to pump enough blood to meet the body's demands. Therefore, all of these symptoms can indicate a worsening of heart failure.
6.
The American Heart Association guidelines for treating stage C and D systolic heart failure include:
Correct Answer
A. ACE inhibitors
Explanation
The American Heart Association guidelines for treating stage C and D systolic heart failure include ACE inhibitors. ACE inhibitors are a class of medications that help relax blood vessels and reduce the workload on the heart. They are commonly prescribed to patients with heart failure to improve symptoms, reduce hospitalizations, and prolong survival. Other treatments mentioned in the options, such as calcium channel blockers and fluid restriction, may have their own roles in managing heart failure, but they are not specifically mentioned in the guidelines for stage C and D systolic heart failure. Therefore, the correct answer is ACE inhibitors.
7.
B-Type Natriuretic Peptide (BNP) decreases when heart failure worsens
Correct Answer
B. False
Explanation
B-Type Natriuretic Peptide (BNP) is a hormone that is released by the heart in response to increased pressure and stretching of the heart muscle. It is used as a diagnostic marker for heart failure. When heart failure worsens, the heart is under more stress and strain, leading to an increase in BNP levels. Therefore, the statement that BNP decreases when heart failure worsens is false.
8.
What is true of both systolic and diastolic heart failure:
Correct Answer
F. A, B, and C.
Explanation
Both systolic and diastolic heart failure have components that are seen in most heart failure patients. Symptoms such as shortness of breath, fluid retention, and fatigue are common in both types. Additionally, both types involve neuro-hormonal and circulatory abnormalities. The treatment for both types may differ, but the statement "All of the above" correctly indicates that all of the options A, B, and C are true for both systolic and diastolic heart failure.
9.
Three classes of medication that can exacerbate heart failure are:
Correct Answer
B. NSAIDS, antiarrthythmics, calcium channel blockers
Explanation
The correct answer is NSAIDS, antiarrhythmics, calcium channel blockers. These three classes of medication can exacerbate heart failure. NSAIDs (nonsteroidal anti-inflammatory drugs) can cause fluid retention and increase blood pressure, putting additional strain on the heart. Antiarrhythmics can have negative effects on heart function and can worsen heart failure symptoms. Calcium channel blockers can also cause fluid retention and decrease the heart's ability to pump effectively. Therefore, patients with heart failure should be cautious when taking medications from these classes.
10.
A 2010 recommendation by the HFSA is for patients to assess and record their shortness of breath at rest or at a consistent level of activity using the modified Borg scale.
Correct Answer
A. True
Explanation
The explanation for the given correct answer is that in 2010, the HFSA (Heart Failure Society of America) recommended that patients should assess and record their level of shortness of breath at rest or during a consistent level of activity using the modified Borg scale. This scale is a tool used to measure perceived exertion or breathlessness. Therefore, it is true that the HFSA made this recommendation in 2010.