FINALS Flashcards
What represents ventricular repolarization in an ECG?
T-wave
Where is the V1 electrode placed in a standard ECG?
Fourth intercostal space just to the right of the sternum
Which lead does not record the electrical activity of the heart in the lateral area?
Lead III
What percentage of cross-sectional diameter reduction can cause angina?
70%
What condition has no regularity shape of the QRS complex because all electrical
activity is disorganized and there are no P waves or PR intervals present?
Ventricular Fibrillation
Where is the V4 electrode placed in a standard ECG?
Fifth intercostal space in the mid-clavicular line
Which finding is associated with a PR interval > 0.22 seconds?
First-degree AV block
What represents atrial depolarization in an ECG?
P-wave
Where is the RA electrode placed in a standard ECG?
On the right arm, avoiding thick muscle
Which condition has a ventricular rate usually between 150 and 250 beats per
minute, with variable ventricular complex?
Irregular Wide Complex Tachycardia
What is the most common cause of injury to the intimal walls of the artery?
Hypertension
What is the most common cause of injury to the intimal walls of the artery?
Hypertension
What condition has a ventricular rate less than 60bpm, but usually more than
40bpm, with a consistent PR interval between 0.12 and 0.20 seconds in duration?
SInus Bradycardia
Which enzyme peaks at 24-36 hours following a major myocardial injury?
Creatine kinase-myocradial band
Which lead uses the positive electrode on the left leg and a combination of the
right arm and left arm electrodes as the negative pole?
Lead II
Is high blood pressure, with a systolic blood pressure of 130
mmHg or higher, and/or a diastolic blood pressure of 80 mmHg or higher?
Hypertension
is the pressure in the arteries when the heart contracts
Systolic Blood Pressure
is the pressure in the arteries when the heart is relaxed between beats
Diastolic Blood Pressure
is swelling in the legs, ankles, and feet due to the accumulation of
fluid in the tissues
Peripheral Edema
is the accumulation of fluid in the lungs, which can cause difficulty breathing,coughing and other respiratorty symptoms.
Pulmonary Edema
is a complication of untreated streptococcal pharyngitis (strep
throat) that can cause damage to the heart valves and lead to rheumatic heart disease.
Rheumatic Heart Fever
is a congenital heart defect that consists of four abnormalities: a
ventricular septal defect (a hole between the right and left ventricles), pulmonary
stenosis (narrowing of the pulmonary valve and artery), right ventricular hypertrophy
(enlargement of the right ventricle), and an overriding aorta (the aorta is shifted to the
right and receives blood from both the right and left ventricles).
Tertalogy of Fallot
can lead to cardiac muscle disease through a process called hypertensive
heart disease. When blood pressure is consistently elevated, it causes the heart to work
harder to pump blood against the increased resistance in the blood vessels. Over time,
this increased workload can cause the heart muscle to thicken and become stiff, a
condition called left ventricular hypertrophy (LVH). LVH can lead to a variety of
complications, including diastolic dysfunction, systolic dysfunction, and other
conditions that can lead to heart failure, arrhythmias, and other complications.
Hypertension
What are the two hallmark symptoms of right-sided heart failure?
Peripheral Edema, Jugular Venous Distension