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IBHRE Exam Questions and Answers ATI -Solved
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IBHRE Exam Questions and Answers ATI -Solved
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IBHRE Exam Questions and Answers ATI -Solved1 Shock - ANSWER-1 month of energy/longevity
1amp-hr - ANSWER-1,000,000 amp-hours
80A Polyurethane - ANSWER-Lead failure due to Metal Ion Oxidation
Absolute Risk Reduction (ARR) - ANSWER-Arithmetic difference
Active fixation leads - ANSWER-Isodiametric - easier to pull out
AF is associated with - ANSWER-Dimentia
AFFIRM Study - ANSWER-AF study concluding rate & rhythm control were similar
Afterpotential - ANSWER-Polarization at the electrode tissue interface following delivery
of pacing stimulus
Afterpotential - ANSWER-Want a smaller afterpotential
Altering conductivity - ANSWER-Phase 0
Altering refractoriness - ANSWER-Phase 1-4
Angstrom - ANSWER-Unit of length
Anode surface area - ANSWER-4-20
Bachmans bundle (SA runs to roof of RA) - ANSWER-Reduces pwave width and
benefits ppl with interstitial delays in patients with PAF
Battery capacity - ANSWER-Current
Battery capacity - ANSWER-Quantity of electric current a battery can deliver
BELT (balanced endless loop tachycardia) - ANSWER-Rate(ms) -sensed AV= VA
BPM to Hz - ANSWER-60 bpm = 1 Hz
Brigades syndrome - ANSWER-Twice oversensing
Cardiac Cycle - ANSWER-
Cardiac Output - ANSWER-CO = HR x SV
, Cathode surface area - ANSWER-2-6
Cathode/anode - ANSWER-Smaller SA= higher current density, the lower the threshold
and higher the impedance
Cathode/anode sizes - ANSWER-Small cathodes, big anodes
Cell impedance EOS - ANSWER-10,000 - 25,000 ohms
Cell impedance Eri - ANSWER-5000 - 10,000 ohms
Charge - ANSWER-The amount of electricity delivered to the myocardium during an A
or V output
Chronaxie - ANSWER-The minimum duration an electrical current at twice rheobase
intensity needs to be applied to produce an AP.
Clinical trial terms - ANSWER-As treated- compres subjects with the treatment they
received
Intention to treat- analayzed groups they were randomized to regardless of whether or
not they adhered to intervention
Per protocol or on treatment- restricts comparison to patients who adhered to the
clinical trial instructions
Closed Loop Sensor - ANSWER-Myocardial contractility using intracardiac impedennce
CMOS (complimentary metal oxide semiconductor) - ANSWER-Refers to low-power
chip design in pacemaker that can be damaged by high doses of radiation
Coaxial design - ANSWER-Bipolar lead 100 ohms
Unipolar lead 450 ohms
Usually use coaxial and multifilar
Conductors DBT/DFT - ANSWER-Need low resistance to minimize voltage loss
Confidence interval - ANSWER-If 95%, results will be the same, wider intervals indicate
lower precision
Congenital post-op CHB - ANSWER-1-3% of congenital surgeries, usually covers within
10 days
Higher risk for pacemakers after surgery if preexisring heart conditions or aortic valve
replacement
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