ECGS ARRT CI EXAM QUESTIONS WITH 100% CORRECT
ANSWERS!!Buy Quality Materials!
ATRIAL SYSTOLE- CARDIAC CYCLE
ATRIA CONTRACT- ATRIA PUSH BLOOD INTO THE VENTRICLES
VENTRICULAR SYSTOLE
VENTRICLES CONTRACT AND PRESSURES WITHIN THEM RISE. TRICUSPID AND
MITRAL VALVES CLOSE. (FIRST HEART SOUND)
RISING PRESSURE- CARDIAC CYCLE
SEMILUNAR VALVES OPEN WHEN PRESSURE IN THE VENTRICLES EXCEEDS
THAT IN THE ARTERIES
VENTRICULAR DIASTOLE
PRESSURE IN THE RELAXING VENTRICLES DROPS BELOW THAT INT HE
ARTERIES. SEMILUNAR VALVES SNAP SHUT (2ND HEART SOUND)
PERIOD OF FALLING PRESSURE-CARDIAC CYCLE
BLOOD FLOWS FORM THE VEINS IN TO THE RELAXED ATRIA. TRICUSPID AND
MITRAL VALVES CLOSE WHEN PRESSURE IN VENTRICLES FALLS BELOW THE
ATRIA.
SINOATRIAL NODE- CONDUCTION SYSTEM
PRIMARY PACEMAKER- 60-100 BPM
ATRIOVENTRICULAR NODE
AFTER SA NODE- DELAYS IMPULSE TO BUNDLE OF HIS TO ALLOW ATRIA TO
CONTRACT
BUNDLE OF HIS
AFTER AV NODE- RELAYS IMPULSE TO R AND L BUNDLE BRANCHES
R AND L BUNDLE BRANCHES
AFTER BUNDLE OF HIS, RELAYS IMPULSE TO PURKINJE FIBERS
PURKINJE FIBERS
AFTER BUNDLE BRANCHES, RELAYS IMPULSE TO VENTRICULAR MYOCARDIUM
P WAVE REPRESENT
ATRIAL DEPOLARIZATION (IMPULSE THROUGH ATRIA)
QRS COMPLEX MEANING
SPREAD OF ELECTRICAL IMPULSE THROUGH VENTRICLES- VENTRICLE
DEPOLARIZATION
Q WAVE IS ALWAYS
NEGATIVE
SINUS HEARTRATE
60-100
SINUS PR INTERVAL
.12 TO .20 SECONDS
SINUS QRS DURATION
SECONDS
SINUS BRADYCARDIA RATE
LESS THAN 60 BPM
, PR INTERVAL IN SINUS BRADYCARDIA
TO SECONDS
QRS DURATION SINUS BRADYCARDIA
0.11 SECONDS NORMAL
DRUG OF CHOICE FOR SYMPTOMATIC BRADYCARDIA
ATROPINE
HR FOR SINUS TACH
101 TO 180 BPM
PR INTERVAL AND QRS DURATION NORMAL IN SINUS TACH?
YES
SINUS TACH IN PT ALSO EXPERIENCING MI MAY BE TREATED WITH WHAT
MEDS TO SLOW CONDUCTION AND THE HEARTS OXYGEN DEMAND
BETA BLOCKERS
WHEN THE SA NODE FIRES IRREGULARLY
SINUS ARRHYTHMIA
SINOATRIAL BLOCK
IMPULSE IS BLOCKED, RESULTING IN AN ABSENT PQRST COMPLEX
OTHER NAME FOR SA BLOCK
SINUS EXIT BLOCK
SINUS ARREST
PACEMAKER CELLS FAIL TO INITIATE AN ELECTRICAL IMPULSE FOR 1 OR
MORE BEATS
PAC
PREMATURE ATRIAL COMPLEX
WHAT HAPPENS WHEN A PAC OCCURS
A SITE IN THE ATRIA FIRES BEFORE THE SA NODE IS EXPECTED TO FIRE
WILL THE PAC P WAVE LOOK SIMILAR TO NORMAL P WAVE?
ONLY IF THE SPOT FIRING IN THE ATRIA IS NEAR THE SA NODE
HOW DOES THE QRS LOOK IN A PAC
CAN LOOK NORMAL UNLESS THEY ABNORMALLY CONDUCTED
ABERRANTLY CONDUCTED PACS HAVE A _______ QRS
WIDE
WIDE QRS IN ABERRANTLY CONFUCTED PACS INDICATES WHAT
CONDUCTION THROUGH THE VENTRICLES IS ABNORMAL
NONCONDUCTED PREMATURE ATRIAL COMPLE
PAC OCCURS EARLY- CLOSE TO THE T WAVE, NO QRS AFTER
MULTIFORM ATRIAL RHYTHM
SIZE, SHAPE, DIRECTION OF PWAVES DIFFER DUE TO SHIFTING OF DOMINANT
PACEMAKER
MULTIFOCAL ATRIAL TACHYCARDIA
WHEN THE WANDERING ATRIAL PACEMAKER HAS A VENTRICULAR RATE MORE
THAN 100 BPM
SUPRAVENTRICLAR TACHYCARDIA BEGINS WHERE
ABOVE THE BUNDLE OF HIS
ATRIAL TACHYCARDIA
REGULAR RHYTHM WITH A RAPID ATRIAL RATE
ANSWERS!!Buy Quality Materials!
ATRIAL SYSTOLE- CARDIAC CYCLE
ATRIA CONTRACT- ATRIA PUSH BLOOD INTO THE VENTRICLES
VENTRICULAR SYSTOLE
VENTRICLES CONTRACT AND PRESSURES WITHIN THEM RISE. TRICUSPID AND
MITRAL VALVES CLOSE. (FIRST HEART SOUND)
RISING PRESSURE- CARDIAC CYCLE
SEMILUNAR VALVES OPEN WHEN PRESSURE IN THE VENTRICLES EXCEEDS
THAT IN THE ARTERIES
VENTRICULAR DIASTOLE
PRESSURE IN THE RELAXING VENTRICLES DROPS BELOW THAT INT HE
ARTERIES. SEMILUNAR VALVES SNAP SHUT (2ND HEART SOUND)
PERIOD OF FALLING PRESSURE-CARDIAC CYCLE
BLOOD FLOWS FORM THE VEINS IN TO THE RELAXED ATRIA. TRICUSPID AND
MITRAL VALVES CLOSE WHEN PRESSURE IN VENTRICLES FALLS BELOW THE
ATRIA.
SINOATRIAL NODE- CONDUCTION SYSTEM
PRIMARY PACEMAKER- 60-100 BPM
ATRIOVENTRICULAR NODE
AFTER SA NODE- DELAYS IMPULSE TO BUNDLE OF HIS TO ALLOW ATRIA TO
CONTRACT
BUNDLE OF HIS
AFTER AV NODE- RELAYS IMPULSE TO R AND L BUNDLE BRANCHES
R AND L BUNDLE BRANCHES
AFTER BUNDLE OF HIS, RELAYS IMPULSE TO PURKINJE FIBERS
PURKINJE FIBERS
AFTER BUNDLE BRANCHES, RELAYS IMPULSE TO VENTRICULAR MYOCARDIUM
P WAVE REPRESENT
ATRIAL DEPOLARIZATION (IMPULSE THROUGH ATRIA)
QRS COMPLEX MEANING
SPREAD OF ELECTRICAL IMPULSE THROUGH VENTRICLES- VENTRICLE
DEPOLARIZATION
Q WAVE IS ALWAYS
NEGATIVE
SINUS HEARTRATE
60-100
SINUS PR INTERVAL
.12 TO .20 SECONDS
SINUS QRS DURATION
SECONDS
SINUS BRADYCARDIA RATE
LESS THAN 60 BPM
, PR INTERVAL IN SINUS BRADYCARDIA
TO SECONDS
QRS DURATION SINUS BRADYCARDIA
0.11 SECONDS NORMAL
DRUG OF CHOICE FOR SYMPTOMATIC BRADYCARDIA
ATROPINE
HR FOR SINUS TACH
101 TO 180 BPM
PR INTERVAL AND QRS DURATION NORMAL IN SINUS TACH?
YES
SINUS TACH IN PT ALSO EXPERIENCING MI MAY BE TREATED WITH WHAT
MEDS TO SLOW CONDUCTION AND THE HEARTS OXYGEN DEMAND
BETA BLOCKERS
WHEN THE SA NODE FIRES IRREGULARLY
SINUS ARRHYTHMIA
SINOATRIAL BLOCK
IMPULSE IS BLOCKED, RESULTING IN AN ABSENT PQRST COMPLEX
OTHER NAME FOR SA BLOCK
SINUS EXIT BLOCK
SINUS ARREST
PACEMAKER CELLS FAIL TO INITIATE AN ELECTRICAL IMPULSE FOR 1 OR
MORE BEATS
PAC
PREMATURE ATRIAL COMPLEX
WHAT HAPPENS WHEN A PAC OCCURS
A SITE IN THE ATRIA FIRES BEFORE THE SA NODE IS EXPECTED TO FIRE
WILL THE PAC P WAVE LOOK SIMILAR TO NORMAL P WAVE?
ONLY IF THE SPOT FIRING IN THE ATRIA IS NEAR THE SA NODE
HOW DOES THE QRS LOOK IN A PAC
CAN LOOK NORMAL UNLESS THEY ABNORMALLY CONDUCTED
ABERRANTLY CONDUCTED PACS HAVE A _______ QRS
WIDE
WIDE QRS IN ABERRANTLY CONFUCTED PACS INDICATES WHAT
CONDUCTION THROUGH THE VENTRICLES IS ABNORMAL
NONCONDUCTED PREMATURE ATRIAL COMPLE
PAC OCCURS EARLY- CLOSE TO THE T WAVE, NO QRS AFTER
MULTIFORM ATRIAL RHYTHM
SIZE, SHAPE, DIRECTION OF PWAVES DIFFER DUE TO SHIFTING OF DOMINANT
PACEMAKER
MULTIFOCAL ATRIAL TACHYCARDIA
WHEN THE WANDERING ATRIAL PACEMAKER HAS A VENTRICULAR RATE MORE
THAN 100 BPM
SUPRAVENTRICLAR TACHYCARDIA BEGINS WHERE
ABOVE THE BUNDLE OF HIS
ATRIAL TACHYCARDIA
REGULAR RHYTHM WITH A RAPID ATRIAL RATE
