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The normal shape of the P wave is
upright
3 multiple choice options
What is the definition of a Second-Degree AV Block Type I
Reflected on the ECG by a progressive lengthening of the PR interval, then dropped QRS
Wolf Parkinson White (WPW) is characterized by
A congenital bypass tract known as a bundle of kent
delta waves
Which of the answers below is a cause of T wave inversion?
ischemia
3 multiple choice options
what is the shape of a normal t wave
upright
3 multiple choice options
What are the criteria for a left bundle branch block
wide QRS complex > 0.12 seconds.
Broad (typically notched in lead I, aVL, V5, V6)
R wave with prolonged upstroke in leads V5, V6, I and aVL with ST segment depression and T wave inversion
Second Degree AV Block Type II requires a permanent pacemaker due to its ability to possibly progress suddenly to a BLANK with little or no warning
Third Degree AV block
3 multiple choice options
Which arrhythmia below is described as ectopic beats of ventricular origin with a rate of >50 and <100 bpm? No visible P waves
Accelerated idioventricular rhythm
3 multiple choice options
Atrial Flutter is common after heart surgery
True
1 multiple choice option
Which of the following may trigger atrial fibrillation?
alcoholism
3 multiple choice options
The normal duration for the QT interval is BLANK seconds
0.36-0.44
Which of the following is a complication from atrial fibrillation?
blood clot or thrombi
3 multiple choice options
Which of the following is the first drug of choice for treating symptomatic bradycardia?
atropine
3 multiple choice options
Atropine works to BLANK conduction through the AV node
improve
3 multiple choice options
persistent sinus tachycardia is a concern due to it causing
decreased cardiac output due to decreased ventricular filling time
heart failure
common causes of sinus bradycardia include all of the following except
anxiety
3 multiple choice options
what is the definition of ventricular tachycardia
originates in an ectopic pacemaker site in the ventricles at a rate of 120-200 beats/minute
3 multiple choice options
BLANK originates in an ectopic pacemaker site in the atria producing a rapid, regular atrial rhythm between 140 and 250 beats per minutes.
paroxysmal atrial tachycardia
what are the criteria for a Right Bundle Branch Block
Wide QRS with a duration of > 0.12 seconds in V1.
rSr (Notched) pattern in V1 and V2.
Inverted T wave; strain pattern or inverted T waves may be present in right chest leads.
Wide S wave in lead I and v6
The most common indication for pacemaker implantation is
slow heart rate
3 multiple choice options
what is significant ST elevation and indication of?
myocardial infarction
3 multiple choice options
Hypocalcemia causes which abnormality on the ECG?
Prolonged QT interval
Which rhythm below is characterized by a pacemaker site that shifts back and forth between the sinus node and multiple atrial sites, causing differences in P wave configuration? The distinguishing characteristic of this rhythm is the changing P waves, which vary in size, shape, or direction across the test strip. The PR interval remains the same.
Wandering atrial pacemaker
3 multiple choice options
The primary pacemaker of the heart is the SA node, which has an intrinsic rate of BLANK
60 - 100 bpm
3 multiple choice options
What are the criteria for Wolff Parkinson White Syndrome?
Slurred upstroke on QRS (Delta wave), creating a wide QRS and short PR interval; caused by bundle of Kent.
3 multiple choice options
Cause of premature atrial contraction
hypertension
Therapeutic levels of the drug Digitalis cause which abnormality on the ECG?
ST segment depression with a gradual slope
Which of the criteria below is a criterion for hyperkalemia on the ECG?
Peaked T waves that are greater than 2/3 the height of the R wave
3 multiple choice options
Which of the following statements about ST depression is NOT true?
The more upsloping the depression is the more likely it is due to blockage
3 multiple choice options
A significant Q wave will be a sign of a past MI. What is the criteria for a significant Q wave?
One third to one half the height of the R wave and
greater than one box wide
Common causes of sinus tachycardia include all of the following except
heart failure
Epinephrine works to increase the heart rate by causing
vasoconstriction
3 multiple choice options
The intrinsic rate of the atrioventricular node is:
40 - 60 bpm
3 multiple choice options
What is the definition of a Third Degree AV block?
There is no conduction of impulses from the atria into the ventricles
what is the definition of Atrial Fibrillation?
A rapid and highly irregular heart rhythm originating in an ectopic site in the atria
3 multiple choice options
Which arrythmia has ectopic beats of ventricular origin
with a rate of > 50 and < 100 bpms and no visible P waves?
Acceleration idioventricular rhythm
3 multiple choice options
Hypokalemia has which of the following changes on the
ECG
Appearance of a U wave
3 multiple choice options
What is the definition of a Second Degree AV Type II?
failure of some of the sinus impulses to be conducted to the ventricles (dropped QRS)
What is significant ST depression an indication of?
ischemia
3 multiple choice options
What is the definition of Ventricular Fibrillation
quivering of the ventricles. No QRS complexes. Lethal rhythm
What is the definition of Torsades de Pointes?
Usually seen in patients with prolonged QT intervals; QRS complexes spiral around baseline
3 multiple choice options
What is the definition of a Premature Atrial Contraction?
Premature ectopic beat arising somewhere other than the SA node. Characterized by an abnormal P wave
3 multiple choice options
The best exercise to evaluate the pacemaker is:
Treadmill
3 multiple choice options
Which is the most common sensor method used to detect
the need for increasing the heart rate?
Vibration and acceleration
3 multiple choice options
What is the definition of Atrial Flutter?
originates in an ectopic pacemaker site in the atria, depolarizing at a rate of 250-350 beats/minute
3 multiple choice options
ST elevation or depression is considered abnormal if the
displacement is equal to or greater than ____ mm from
baseline.
1
3 multiple choice options
Tall R waves in V1 and V2 being equal to or greater than
7 mm and a right ventricular strain pattern evident in V1
and V2 are twin of the criteria for:
Right ventricular hypertrophy
3 multiple choice options
What is the definition of a First-degree AV block?
delay in the conduction at the AV node of HIS bundle
3 multiple choice options
The S wave in V1 and V2 plus the R wave in V5 or V6 being greater than or equal to 35mm is a criteria for:
Left Ventricular Hypertrophy
3 multiple choice options
Epinephrine is the first drug of choice for treatment of ventricular tachycardia?
False
amiodarone, beta blockers