EKG Flashcards
NSR is ____ bpm
60-100
Sinus brady is HR < ____bpm
60
Sinus Tachy is HR > ____ bpm
100
Rx for Sinus Brady
Atropine
Rx for Sinus Tachy
Adenosine
Narrow QRS + Regular Rhythm
Sinus Tach
AVNRT
Atrial Tach
Atrial Flutter
Junctional Tachy
Narrow QRS + Irregular Rhythm
Atrial fib
Atrial Flutter w/variable AV block
Multifocal Atrial Tach
Wide QRS + Regular Rhythm
Ventricular Tach
SVT with bundle branch block
Antidromic AVRT
Pre-excited SVT
Wide WRS + Irregular Rhythm
Polymorphic Ventricular Tach
Afib w/bundle branch block
Atrial Flutter with variable AV block and bundle branch block
Irregularly irregular R-R intervals with loss of P waves
Atrial Fibrillation
Tx: Rate>Rhythm control
Rx for Afib rate control
BB
CCBs Non-DHP (Diltiazem, Verapamil)
Afib puts you at risk for a
Stagnant blood -> Clot -> stoke
(starts out in LT atrium)
Short PR interval, wide QRS, delta wave (initial slurring of QRS), no flat PR segment, no pause at the AV node
Wolff Parkinson White (WPW) Syndrome
Tx for unstable vs stable pt with WPW
Unstable -> Cardiovert
Stable -> Procainamide (Na+ Channel blocker)
Tx: NO AV NODAL BLOCKING DRUGS -> RATE WILL SKYROCKET -> VFIB -> DEAD
Multifocal Atrial Tachy (MAT) vs Wandering Atrial Pacemaker (WAP)
MAT = HR >100
WAP = HR <100
Both: Irregular; >3 distinct P waves in same lead
Never give adenosine if (narrow/wide) QRS
wide (issue with ventricles too slow)
(Will make it worse)
Rx for Paroxysmal Supraventricular Tachy
Adenosine, Verapamil (Non DHP CBB)
BOLUS
Every P is followed by a QRS but there are consistently long P-R intervals
1st degree heart block
P-R interval gets longer, longer, longer and then drops (not every P is followed by a QRS)
2nd degree heart block - Mobitz type I (Wenkebach)
P-R intervals are normal, normal, drop
QRS is intermittently dropped
2nd degree heart block - Mobitz type II
There are P waves and QRS but they dont correlate with one another
3rd degree (complete) heart block
Wide S in 1
Triphasic QRS in V1 (extra R in QRS)
RT bundle branch block
Wide R in 1
Notched S in V1
LT bundle branch block
Rx for Premature Atrial Contractions (PACs) and Premature Ventriculare Contractions ( PVCs)?
Rate control BB, CCBs
3+ consecutive ventricular beats @ 120bpm+
“regular broad complex tachy (wide QRS) with uniform QRS in each lead”
Ventricular tachy
Pulseless vs stable sustained trmnt for V tach
Pulseless -> CPR -> defib -> Epi -> Amiodarone
Stable sustained -> Amiodarone -> Cardiovert
1st line antiarrhythmic = AMIODARONE
Polymorphic VT + long QT
Tosades de pointes (TdP)
Tx: Magnesium sulfate
Wide, irregular QRS
Ultrarapid baseline undulations that are irregular in timing and morphology
Vfib
Tx: CPR -> Defib -> Epi -> Amiodarone
_____ syndrome = mutated loss of Na+ channel function -> die in your sleep
Brugada Syndrome
ST Elev in V1-V2 (slope down)
Tx: ICD, Quinidine (Na+ Channel Blocker)
exercise-induced syncope
Catecholaminergic polymorphic ventricular tachy
Tx: ICD, BB, Flecainide, genetic testing
____ syndrome = Delysm cough syrup & Quinine can put you into cardiac arrest and mimic epilepsy ss
Long QT syndrome
What things can cause Long QT syndrome
Delsym, Sotalol, Quinine (tonic water), SSRIs, Antipsychotics,
