Exam (elaborations)
IBHRE Prep Exam Questions with Answers A+ Graded
- Institution
- IBHRE Prep Exam Questions With Answers A+ Graded
IBHRE Prep Exam Questions with Answers A+ Graded
[Show more]
Content preview
IBHRE Prep Exam Questions withAnswers A+ Graded
Voltage is? - -The electromotive force pushing on electrons
-If the PM output voltage is 5v and the measured lead resistance is 330
ohms, then the current that flows out of the pacemaker into the heart is? - -
15.15
I=V/R=5V/.33 k ohm
-If a unipolar lead wire has an insulation break one would expect the
resistance to? - -decrease
-for a wire fracture the resistance? - -increases
-if the output vlotage of the pacemaker is programmed from 5 volts to 2.5
volts, the energy delivered to the heart is? - -quartered
-Which of the following affect the longevity of the PM? - -output voltage,
resistance of lead and amount % pacing
-Which Pt's PM will last longer? - -#1: AMP=5V, L.R.=90, resistance
500ohms, PW=.5ms, 100%pacing
#2: AMP=5V, L.R.=60, resistance 500ohms, PW=.5ms, 100%pacing
#3: AMP=2.5V, L.R.=60, resistance 330ohms, PW=.5ms, 100% pacing
(#4: AMP=2.5v, L.R.=60, resistance 500ohms, PW=.5ms, 50%pacing)
-The strength duration curve is dependent on the? - -Cell's membrane
capacitance, intracellular and extracellular resistance and threshold voltage.
-A patient on flecainide should? - -Have their threshold checked
-The acute threshold peaking is due to? - -Trauma and inflammation
-An advantage of bipolar leads is? - -They are less susceptible to EMI
-The two parameters that are important for ventricular sensing and should
be measured are? - -R-wave amplitude and slew rate
-If an external PM is set to a sensitivity setting of 5mV and some R-waves go
unsensed, then you should do the following - -Increase sensing by lowering
sensitivity to 2.5mV.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Victorious23. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.74. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83684 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now