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Exam 1 - Cardiac Arrhythmias
Exam 1 - Cardiac Arrhythmias
64
Health Care
Graduate
02/17/2013

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Cards

Term
Respiratory arrhythmia
Definition
phasic breathing cycles >> heart rhythm ∆s (usually not problematic)
Term
PAC: appearance of P waves
Definition
P waves look "different"
Term
PAC: 1 alone
Definition
isolated
Term
PAC: 2 together
Definition
couplet
Term
PAC: 3 together
Definition
run
Term
PAC: every other
Definition
bigeminy
Term
PAC: every 3rd
Definition
trigeminy
Term
PAC: causes (5)
Definition
rheumatic heart disease,
MI,
HTN,
meds,
hypoxia
Term
PAC: symptoms
Definition
usually none; if some, will be fatigue, ↓ BP
Term
PAC: Rx
Definition
usually none; meds/ablation if symptomatic
Term
Wandering pacemaker: appearance of P waves
Definition
P waves all look different
Term
Atrial flutter =
Definition
AV node doesn't capture all of SA signals
Term
Atrial flutter: appearance
Definition
sawtooth
Term
Atrial flutter: causes
Definition
caffeine, nicotine, COPD, ht failure, MI, digitalis, rheumatic heart disease, valvular disease
Term
Atrial flutter: symptoms
Definition
pt feels nothing unusual, or feels aflutter
Term
Atrial flutter: Rx
Definition
meds, cardioversion
Term
A-fib: appearance
Definition
no discernible P wave; "bag of worms"
Term
a-fib c MVR =
Definition
60-100bpm
Term
a-fib c RVR =
Definition
>100 bpm
Term
a-fib c SVR =
Definition
<60 bpm
Term
a-fib: classifications (3)
Definition
paroxysmal,
persistent,
permanent
Term
a-fib: causes
Definition
rheumatic heart disease, MI, HF, diabetes, post-sx, old age
Term
a-fib: symptoms
Definition
syncope, fatigue, palpitations
Term
a-fib: Rx
Definition
meds, ablation
Term
Jxn'l rhythm: appearance
Definition
QRS is normal, but no P wave
Term
Jxnl rhythm: rate
Definition
40-60 bpm
Term
1º heart block =
Definition
signal from SA to AV is delayed
Term
1º heart block QRS
Definition
prolonged PR interval
Term
2º heart block =
Definition
characterized by dropped QRSs; Mobitz Types I & II
Term
Mobitz Type I heart block =
Definition
Wenckebach Phenomenon (2º heart block);
GRADUAL prolongation of PR interval until missed QRS
Term
Mobitz Type II heart block =
Definition
FIXED prolonged PR intervals c dropped QRSs
Term
3º heart block =
Definition
dissociation btwn atria/ventricles
Term
3º heart block requires… (Rx)
Definition
pacemaker; usually maintained c escape beats
Term
Heart block: causes
Definition
MI, severe CAD, cardiomyopathy, electrical problems, digitalis
Term
Heart block: symptoms
Definition
syncope, dizziness, chest pain (dependent on ventricular rate)
Term
Heart block: Rx
Definition
meds, pacemaker
Term
Block at AV: ECG morphology
Definition
narrow QRS, jxnl rhythm
Term
Block at bundles: ECG morphology
Definition
wider QRS, ventricular rhythm (20-40 bpm)
Term
IVCD =
Definition
interventricular conduction delays
Term
R BBB: appearance, leads
Definition
"rabbit ears"; leads V1,V2
Term
L BBB: appearance, leads
Definition
wide, bizarre looking QRS - steep, curved R and slow, wide S;
leads V5,V6
Term
BBB: causes
Definition
ischemic heart disease, MI, valvular disease, COPD
Term
BBB: symptoms
Definition
N/A (if HR is fast enough)
Term
Ventricular arrhythmia: morphology, rate
Definition
QRS is wide, bizarre; pace 20-40 bpm
Term
Ideoventricular rhythm: ECG
Definition
QRS wide/slow; P not associated c QRS
Term
Ideoventricular rhythm: causes
Definition
MI, sustained ischemia, toxicity, hypoxia
Term
Ideoventricular rhythm: med causes
Definition
thrombolytics, anticoagulants
Term
Ideoventricular rhythm: symptoms
Definition
syncope, dizziness
Term
Ideoventricular rhythm: Rx
Definition
meds, pacemaker, O2, CPR
Term
PVCs: p waves, QRS morphology
Definition
normal P waves; premature/excessively wide QRSs
Term
PVC: causes
Definition
alcohol, anxiety, caffeine, ischemia, cardiomyopathies, electrolyte imbalance
Term
PVC: symptoms
Definition
feel "skipped beats" or palpitations
Term
PVC: Rx
Definition
meds, treatment of cause (de-stress)
Term
R-on-T phenomenon =
Definition
PVC appears on T of previous QRS (RELATIVE REFRACTORY PERIOD)
Term
Salvo =
Definition
intermittent v-tach
Term
v-tach =
Definition
rapid sequence of PVCs
Term
v-tach: causes
Definition
meds, alcohol, diarrhea, hypomagnesmia, hypokalemia;
interactions c grapefruit
Term
v-tach: symptoms
Definition
syncope, dizziness, anxiety
Term
v-tach: Rx
Definition
meds, cardioversion
Term
Torsades de Pointes =
Definition
v-tach characterized by rotation of electrical axis by ≥180º
Term
v-fib =
Definition
LETHAL
Term
v-fib: causes
Definition
drug overdose, MI, electrical shock
Term
v-fib: symptoms
Definition
colapse
Term
v-fib: Rx
Definition
defibrillation, meds
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