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2nd degree type 1 (aka Wenckebach, aka Mobitz 1) occurs blockage at the ___ node? -
correct answerAV node
2nd degree type 1 EKG characteristics
Rate:
Rhythm:
P-wave:
PRI:
QRS: - correct answerRate: Atrial rate exceeds ventricular rate
Rhythm: Reg atrial; irreg ventricle
P-wave: Normal in size and shape, some not followed by QRS
PRI: Lengthens w/ each cycle
QRS: Constant 0.04-0.10
2nd degree type 1 may also look like?
Which is? - correct answer2 to 1 AV conduction pattern
2 p waves occur for every QRS complex
2nd degree type II (aka Mobits II) EKG characteristics?
Rate:
Rhythm:
P waves:
PRI:
QRS: - correct answerRate: Atrial rate exceeds ventricular rate
Rhythm: Reg atrial/irregular ventricular
P waves: P waves are normalized
PRI: Constant
QRS: Wide 0.10 sec or greater/some dropped
3 or more pvc's is called? - correct answerVentricular tachycardia
3 types of SVT? A, A, A - correct answerAtrial tachycardia
Atrial fibrillation
Atrial flutter
3rd degree av block ekg charcteristics
Rate: Atrial > Ventricular
Ventricular: 40-60 bpm @ AV node; 20-40 beats/min @ BB
Rhythm: Reg
,P waves: Normal, can be hidden
PRI: N/A
QRS: 0.04-0.10 (AV level) >0.10sec (BB level) - correct answerRate: Atrial > Ventricular
Ventricular: 40-60 bpm @ AV node; 20-40 beats/min @ BB
Rhythm: Reg
P waves: Normal, can be hidden
PRI: N/A
QRS: 0.04-0.10 (AV level) >0.10sec (BB level)
A waveform is movement away from the baseline in either positive or negative direction.
True
False - correct answerTrue
A-fib EKG characteristics:
Rate
Rhythm
P wave
PRI
QRS - correct answerRate >300
Rhythm usually ventricular, irreg
P wave Non discernable
PRI None measurable
QRS 0.04-0.10
Accelerated junctional rhythm causes?
(C, C, D, H, M) - correct answerCardiac sx
COPD
Digitalis toxicity
Hypokalemia
MI
Accelerated junctional rhythm:
Rate: ?
Rhythm: ?
P-waves:?
PRI:
QRS: - correct answerRate: 60-100
Rhythm: Regular
P-waves: Inverted
PRI: less than 0.12 if before QRS, immeasurable if no P waves
QRS: 0.04-0.10
Adenosine does not convert _______ or _________ or ________? - correct answerA-
flutter or A-fib or V-tach
, Adenosine is given ____mg rapid IV push/over 1 sec followed by saline flush and
immediate elevation of the arm
If there is no response to the first dose then _________________ - correct answer6mg
rapid IV push/over 1 sec followed by saline flush and immediate elevation of the arm
If there is no response to the first dose then repeat dose 12mg IV push/over 1 sec
Adenosine side effects;
Transient _________ ________
L_______________
P_________________
N_________________
C___________ P____________
H_______________
H_______________
B__________________
Possibly A_______________ - correct answerTransient heart block
Lightheadedness
Palpitations
Nausea
Chest pain
Headache
Hypotension
Bradycardia
Possibly asystole
Adenosine works by slowing______________?
Converts _______
_______rate in ________ SVT/determines underlying rhythm - correct answerSlowing
conduction through AV node, interrupts reentry pathyway
Converts SVT
Slows rate in paroxysmal SVT/determine underlying rhythm
Afib, if ventricular response is controlled what is the tx?
If ventricular rate is uncontrolled and pt is stable than tx? If unstable? - correct
answerControlled-Anticoagulants and antiarrhythmics
Uncontrolled stable-beta blockers, ca+ channel blockers or digoxin
Uncontrolled unstable-cardioversion
Again, first degree block is characterized by a prolonged ____
BBB will have the wide QRS greater than ____ - correct answerAgain, first degree block
is characterized by a prolonged PRI (PR interval)
BBB will have the wide QRS greater than 0.10
Along with Lead II, what is Lead III most helpful for monitoring?
Anterior wall
Changes associated with inferior wall myocardial infarction