Study Electrocardiogram Flash Cards

 
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Electrocardiogram

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A heart rate of 150 BPM or greater?
MULTIFOCAL VENTRICULAR TACHYCARDIA
Multifocal ventricular tachycardia?
*RATE >150 BPM
*IRREGULAR RHYTHM
*NO P WAVES
*QRS COMPLEX IS WIDE
*REQUIRES IMMEDIATE MEDICAL INTERVENTION
Ventricular fibrillation?
*NO REGULAR RATE OR RHYTHM
*EMERGENCY
*REQUIRED IMMEDIATE MEDICAL INTERVENTION
What are common causes of ventricular tachycardia?
*POST MYOCARDIAL INFARCTION
*RHEUMATIC HEART DISEASE
*CORONARY ARTERY DISEASE
*CARDIOMYOPATHY
Ventricular tachycardia?
*RATE USUALLY >100 BPM
*RHYTHM USUALLY REGULAR
*NO P WAVE OR IT APPEARS AFTER QRS COMPLEX WITH RETROGRADE CONDUCTION
*REQUIRED IMMEDIATE MEDICAL ATTENTION
True/False

Ventricular tachycardia required immediate medical attention?
TRUE
What is the heart rate of someone with ventricular tachycardia?
>100 BPM
PAC?
PREMATURE ATRIAL CONTRACTIONS
What are common causes of supraventricular tachycardia?
*MITRAL VALVE PROLAPSE
*COR PULMONALE
(DIGITALIS TOXICITY
*RHEUMATIC HEART DISEASE
Supraventricular tachycardia?
*RATE VARIES BETWEEN 160 TO 250 BPM
*REGULAR RHYTHM
*ORIGINATE FROM A LOCATION ABOVE THE AV NODE
*WILL START AND STOP WITHOUT CAUSE
Supraventricular tachycardia heart rate?
160-250 BPM
What are common causes of atrial fibrillation?
*HYPERTENSION
*CONGESTIVE HEART FAILURE
*CORONARY ARTERY DISEASE
*RHEUMATIC HEART DISEASE
*COR PULMONALE
*PERICARDITIS
*ILLEGAL DRUG USE
Atrial fibrillation (A. fib)
*IRREGULAR ATRIAL RHYTHM
*NO RATE
*NO P WAVES
*"F" WAVES ABSENT
*QUIVERS NOTED
*VENTRICULAR RHYTHM VARIES
ST segment elevation?
ACUTE MYOCARDIAL INFARCTION
Q wave?
PREVIOUS MYOCARDIAL INFARCTION
Elevated QRS?
HYPERTROPHY OF THE MYOCARDIUM
Depressed QRS?
HEART FAILURE, ISCHEMIA, PERICARDIAL EFFUSION, OBESITY, CHRONIC OBSTRUCTIVE PULMONARY DISEASE
T wave?
VENTRICULAR DEPOLARIZATION
Useful in assessing myocardial ischemia?
ST SEGMENT
ST segment?
DELAY BEFORE REPOLARIZATION OF THE VENTRICLES; USEFUL IN ASSESSING MYOCARDIAL ISCHEMIA
What is the normal time for the QT interval?
.32 TO .40 SECONDS
QT interval?
ELECTRICAL SYSTOLE THAT IS MEASURED BY THE TIME ELAPSED FORM THE START OF THE Q WAVE TO THE END OF THE T WAVE. TIME IS NORMALLY .32 TO .40 SECONDS
QRS complex?
VENTRICULAR DEPOLARIZATION AND ATRIAL REPOLARIZATION
What is the normal time between atrial and ventricular depolarization?
.12 TO .2 SECONDS
PR interval?
TIME REQUIRED FOR CONDUCTION FROM THE SA NODE TO AV NODE. THE TIME BETWEEN ATRIAL AND VENTRICULAR DEPOLARIZATION. THIS IS NORMALLY .12 TO .2 SECONDS
P wave?
ATRIAL DEPOLARIZATION
V4 placement?
MIDAXILLARY LINE IN THE 5TH INTERCOSTAL SPACE
V5 placement?
HALFWAY BETWEEN V4 AND V6
V4 placement?
MIDCLAVICULAR LINE IN THE 5TH INTERCOSTAL SPACE
V3 placement?
HALF WAY BETWEEN V2 AND V4
V2 placement?
LEFT OF STERNUM, 4TH INTERCOSTAL SPACE
V1 placement?
RIGHT OF STERNUM, 4TH INTERCOSTAL SPACE
Which leads are bipolar?
*I
*II
*III
(FORM A TRIANGLE CONNECTING THE RIGHT ARM, LEFT ARM, AND LEFT FOOT; THE HEART SHOULD BE AT THE CENTER OF THE TRIANGLE)
Unipolar augmented leads?
*aVR
*aVL
*aVF
What are the names of the 6 precordial leads
*V1
*V2
*V3
*V4
*V5
*V6
Name the 6 limb leads
*I
*II
*III
*aVR
*aVL
*aVF
How many limb leads are there?
6
Measures the electrical activity of the heart?
ELECTROCARDIOGRAM
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