EKG Flashcards
(22 cards)
sinus tachy
rate 100+
regular
PR 0.12-0.20, QRS 0.06-0.10
PQRST
sinus tachy cause and care
hyperthyroidism, hypovolemia, heart fail, anemia, exercise, stimulants, fever, pain/anxiety
T: underlying cause
sinus brady
rate 60-
regular
PRQRST normal
sinus brady cause and care
C: vasovagal, meds (dig, beta, Ca), MI, hypoxemia, hypothermia
T: symptomatic- atropine, then t-pace, dop/epi
premature atrial contractions
ectopic beat from atrial tissue, not SA
-P wave different shape
atrial flutter
atrial rate 240+
flutter wave regular but others may not be-sawtooth
asymptomatic
T: antithrombotics, anticoagulants, cardiovert, ablation
afib
ventricular response irregular
T: anticoags, antithrombo, cardiovert, amiodorone, ablation
SVT
rate 150+ regular short PR (may not have P) C: stimulants, hrt disease, electrolyte imbalance, anatomic abnormal T: a S/S- vagal S/S- cardiovert, adenosine
PVC
QRS 0.12+
wide and bizarre shape
C: hypoxemia, hrt dx, hypoK, hypoMg
T: underlying cause
Vtach
3 PVCs in row
100-250 rate, QRS w similar shape—wide, regular
-tousades de pointes—magnesium!!!!
C: hypox, HF, HDx, cardiomyopathy, hypoK, hypoMg, valvular, QT prolongation
T: no pulse-defib/CPR
has pulse- amiodorone, lidocaine, cardiovert
Vfib
wavy baseline
- assess pt
- CPR
asystole
CPR
first degree block
wide PR 0.20+
C: age, valvular
second degree type 1
progressive length pr until QRS drop
C: age, acute inferior MI, rt vent MI, HDx, digitalis toxic, excess vagal response
T: S/S permanent pace
second degree type 2
P regular w occasional dropped QRS
C: HDx, increased vagal tone, ablation, inferior and rt vent MI
T: pace, atropine, tpace
third degree block
P and QRS regular but seperate w atrial rate higher, wide QRS
C: HDx, acute MI
T: tpace, ppace
hypo K
-2.5, U wave
hyper K
+5.5, tall T, vfib
hypo Ca
-7.0, prolong ST and QT
hyper Ca
+12.0, short ST and QT
hypo Mg
-0.5, prolong PR and QT, broad flat T, PVCs, Vtach or Vfib
hyper Mg
+4.0, prolong PR and QT, wide QRS
