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IBHRE PREP Exam 2024 | IBHRE Prep Exam Update 2024 Questions and Correct Answers Rated A+
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IBHRE PREP Exam 2024 | IBHRE PrepExam Update 2024 Questions and
Correct Answers Rated A+
PVARP....after a _____ event, refractory for the ______ -ANSWER-
ventricle, atrium
what is most likely the cause of the under detection of atrial flutter? -
ANSWER-p waves falling into PVAB
Which two studies showed that RV pacing in patients could lead to
more hospitalizations? -ANSWER-DAVID and MOST
when are the wedensky effects the greatest -ANSWER-at narrow
pulse widths
First degree AV block with symptoms of ppm syndrome is what class
of indication for pacing -ANSWER-Class IIa
Calculation of the wenkbach interval -ANSWER-MTR-TARP
What did the ADEPT study show -ANSWER-rate modulation was
ineffective in improving the QoL for patients with a brady indication
Lead perf percentages in ICD placements -ANSWER-0.6-5%
Class IA drugs that increase pacing thresholds (3) -ANSWER-
quinidine, dysopyramid, procainamid
,class IC drugs that increase pacing thresholds -ANSWER-flecanide,
propaferone
class 3 drugs that increase pacing thresholds (3) -ANSWER-
propaferone, amio, sotalol
Osborn or J waves indicate what three things -ANSWER-hypothermia,
hypercalcemia, brugada syndrome
Sign of WPW syndrome within the QRS -ANSWER-delta wave in the
PR interval
lead type with the highest rate of perforation -ANSWER-atrial active fix
leads
MADIT study -ANSWER-icd vs drug therapy. icd reduced mortality by
54%
MADITII study -ANSWER-icd VS. no ICD. no need for prior
arrythmias. No EP study needed. ICD decreased mortality by 31%
SCDHEFT study -ANSWER-ICD decreased mortality in both ICM
(21%) and NICM (27), amio had little to no effect on mortality
PMOP algorithm -ANSWER-helps reduce reoccurring atrial tach
episodes from reoccurring shortly after previous episode has ended
rheobase is measured in _____ while chronaxie is measured in _____
-ANSWER-voltage, ms
charge is measured in _______. the formula is ______ -ANSWER-
microcoloumbs, I(current) x T (pulse duration)
,constant current = ____ load and ____ impedance -ANSWER-small,
low
constant voltage= ____ load and ____ impedence -ANSWER-large,
high
Which is better polyurethane 80A or 55D? -ANSWER-55D
what programming change can you make to help combat PPM
syndrome -ANSWER-lower the rate to decrease the RV pacing
Clinical manifestations of brugada (2) -ANSWER-ST elevation in V1-
V3, RbBB
Drugs that increase DFT (4) -ANSWER-lidocaine, quinidine, flecanide,
dyapherihydation
underlying reasons for Torsades (4) -ANSWER-hypomagnesia,
hypokalemia, hypoxia, acidosis
most common inherited long QT syndrome -ANSWER-Romano ward
upper limit vulnerability -ANSWER-weakest shock strength where VF
not induced
capacitance is measured in ____ and is the _______ -ANSWER-
farads, charge/voltage, measurement of amount of electrical charge
stored for given electrical current
smaller capacitor = _______ voltage required to deliver an equal
charge to the tissue -ANSWER-greater
, primary endpoint of companion study -ANSWER-risk reduction of
CRTD was 36% mortality in ICD group
main type of acute infection -ANSWER-staph aureous
main type of chronic infection -ANSWER-staph epidermis
microvolt t wave alternates -ANSWER-fluctuations in the t wave
morphology liked to arrhythmia, you cannot detect on the surface
because of such small changes
what type of conductor provides the low resistance needed -
ANSWER-DFT
what type of capacitor provides a high energy density and does not
require a reform -ANSWER-wet tantalum hybrid
voltage of lithium iodine battery -ANSWER-2.8V
smaller surface area = ______ current density = ______ threshold and
______ impedence -ANSWER-higher, lower, higher
hyperkalemia. what type of QT, what happens to threshold, which
chamber more sensitive -ANSWER-short QT, peaked T wave,
threshold usually starts to decrease than increase, atrium more
sensitive
Hypokalemia. what type of QT, changes on EKG (3), causes what -
ANSWER-long QT, ST depression, flattening T wave, U wave, can
cause torsades
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