EKG monitored patient should be __________, monitor
chassis should be ___________ (nonconductive). Why -
answerungrounded, grounded. Grounded patient would be
able to conduct leakage currents. we dont want this
lb to kg - answer2.2 lb = 1 kg
F to C - answerC=5/9(F-32)
C to F - answerF=9/5C+32
3 things that change automaticity of automatic cells -
answer1. slope of phase 4
2. Change of threshold potential
3. Change of resting membrane potential
a systole is represented by what portion of the ECG -
answerQT interval
, What is main ion transfer during systole - answerK+ seeps
out, Ca2+ enters
At rest, what is intracellular/extracellular environment -
answerinside negative, outside positive
What phase of AP is resting membrane potential -
answerphase 4
Nodal depolarization occurs via what channel -
answerCa2+ slow channel
Cardiac muscle cell depol occurs via what channel -
answerNa+ fast channel
During which phases is cell refractory - answer1,2,3
TDP caused by what mechanism usually - answerEAD's
(triggered activity)
Variance - answerTake each number in sample, subtract
each number from mean, square each difference, add all,
divide sum by number in sample -1
Standard deviation - answersquare root of variance
P value - answerProbability of certainty / smaller p value
means the more likely the result could not occur by
chance
survival curve showing % of patients surviving treatment
over time - answerKaplan - Meier curves
when measuring EGM's, earliest atrial activation usually
from _____ and earliest ventricular usually from ______ -
answerP wave / QRS
Morady maneuver is used to differentiate -
answerdifferentiate AT from AVNRT/AVRT
Most common arrhythmia - answerAF
Most common SVT - answerAVNRT