EXAM PAPER 2026 QUESTIONS SOLUTIONS
GRADED A+
◉ EKG monitored patient should be __________, monitor chassis
should be ___________ (nonconductive). Why. Answer: ungrounded,
grounded. Grounded patient would be able to conduct leakage
currents. we dont want this
◉ lb to kg. Answer: 2.2 lb = 1 kg
◉ F to C. Answer: C=5/9(F-32)
◉ C to F. Answer: F=9/5C+32
◉ 3 things that change automaticity of automatic cells. Answer: 1.
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. Answer: QT
interval
,◉ What is main ion transfer during systole. Answer: K+ seeps out,
Ca2+ enters
◉ At rest, what is intracellular/extracellular environment. Answer:
inside negative, outside positive
◉ What phase of AP is resting membrane potential. Answer: phase 4
◉ Nodal depolarization occurs via what channel. Answer: Ca2+ slow
channel
◉ Cardiac muscle cell depol occurs via what channel. Answer: Na+
fast channel
◉ During which phases is cell refractory. Answer: 1,2,3
◉ TDP caused by what mechanism usually. Answer: EAD's (triggered
activity)
◉ Variance. Answer: Take each number in sample, subtract each
number from mean, square each difference, add all, divide sum by
number in sample -1
, ◉ Standard deviation. Answer: square root of variance
◉ P value. Answer: Probability 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. Answer: Kaplan - Meier curves
◉ when measuring EGM's, earliest atrial activation usually from _____
and earliest ventricular usually from ______. Answer: P wave / QRS
◉ Morady maneuver is used to differentiate. Answer: differentiate
AT from AVNRT/AVRT
◉ Most common arrhythmia. Answer: AF
◉ Most common SVT. Answer: AVNRT
◉ What type of single use devices can be resterilized and why?.
Answer: Diagnostic EP electrodes because lumen and technically not
a catheter because no lumen
◉ Fr to mm. Answer: 1 Fr = .33 mm