#1
What is the normal range for ejection fraction in a healthy individual?
#2
Which of the following imaging modalities is commonly used to measure ejection fraction?
X-ray
Ultrasound (Echocardiography)
MRI
CT scan
#3
Which chamber of the heart primarily contributes to stroke volume?
Left atrium
Right atrium
Left ventricle
Right ventricle
#4
What does a low ejection fraction indicate?
Heart failure
Hypertension
Arrhythmia
Atherosclerosis
#5
What is the term for the percentage of blood pumped out of the heart with each contraction?
Stroke volume
Cardiac output
Ejection fraction
Heart rate
#6
What is the term for the volume of blood remaining in the ventricle at the end of diastole?
End-diastolic volume
End-systolic volume
Stroke volume
Ejection fraction
#7
What does ejection fraction measure?
The volume of blood pumped by the heart with each beat
The rate of heart contractions
The electrical activity of the heart
The blood pressure in the arteries
#8
A patient with an ejection fraction of 25% would be classified as having which condition?
Hypertension
Coronary artery disease
Heart failure with reduced ejection fraction (HFrEF)
Atrial fibrillation
#9
What is the formula to calculate ejection fraction?
End-diastolic volume / Stroke volume
Stroke volume / End-diastolic volume
End-systolic volume / Stroke volume
Stroke volume / End-systolic volume
#10
What effect does an increase in afterload have on ejection fraction?
Increases ejection fraction
Decreases ejection fraction
No effect on ejection fraction
Causes arrhythmia
#11
Which of the following factors can influence ejection fraction?
Age
Gender
Heart rate
All of the above
#12
What does an ejection fraction of 50% mean?
Half of the blood is pumped out of the heart with each contraction
Fifty percent of the blood is left in the heart after contraction
The heart pumps half as much blood as it should
The heart pumps more blood than it should
#13
Which of the following medications is commonly prescribed to improve ejection fraction in heart failure patients?
Antibiotics
NSAIDs (Nonsteroidal anti-inflammatory drugs)
Diuretics
Beta-blockers
#14
Which condition is characterized by a normal ejection fraction but impaired relaxation of the heart muscles?
Hypertrophic cardiomyopathy
Dilated cardiomyopathy
Restrictive cardiomyopathy
Hypertension
#15
What does an ejection fraction of less than 40% typically indicate?
Normal heart function
Heart failure with preserved ejection fraction (HFpEF)
Heart failure with reduced ejection fraction (HFrEF)
Cardiac tamponade
#16
Which of the following is a symptom commonly associated with reduced ejection fraction?
Hypotension
Edema (swelling)
Hyperthermia
Hypoglycemia
#17
What is the primary mechanism by which beta-blockers improve ejection fraction in heart failure patients?
Increasing heart rate
Decreasing preload
Increasing afterload
Inhibiting sympathetic activity
#18
Which of the following is a common cause of reduced ejection fraction?
Atrial fibrillation
Pulmonary embolism
Hypothyroidism
Acute pancreatitis