Exam (elaborations)
AACN test 5 With Questions And Answers
- Course
- Institution
AACN test 5 With Questions And Answers
[Show more]
Seller
Follow
Content preview
AACN test 5 With Questions AndAnswers
Endocardium - Answer - inner layer of the heart
Myocardium - Answer - thick, middle layer of the heart
Epicardium - Answer - outer surface of the heart muscle
RCA - Answer - extends to the back of the heart and perfuses the posterior of the heart
ECG prep - Answer - alcohol before skin prep
Time it takes the paper to come out of the EKG machine? - Answer - 25 mm/s
Vertical axis - Answer - voltage--small box = 0.1 mv
Horizontal axis - Answer - time--small box = 0.4 sec
How often are tick marks? - Answer - every 3 seconds
Isoelectric line - Answer - electrical charges in the heart are equal
5 lead - Answer - smoke over fire, clouds over grass, brown in the middle
QT prolongation - Answer - - can cause torsades
- can be affected by drugs (antibiotics, Antidysrhythmic , antipsychotic drugs)
Atrial pacemaker fires... - Answer - before the P wave
, AACN test 5 With Questions And
Answers
Ventricular pacemaker fires... - Answer - before the QRS complex
Threshold - Answer - the lowest amount of energy needed to produce a "capture"
Failure to pace - Answer - no pacemaker activity, it is not firing. This could be a sensitivity problem or a
mechanical issue
Failure to capture - Answer - the pacemaker is firing but no P wave or QRS complex follows the pacer
spike. The impulse is not strong enough to depolarize the heart (increasing the mA will troubleshoot this
problem)
Failure to sense - Answer - If the pacer spike is in the T wave, it is failure to sense
Over-sensing - Answer - - the pacemaker is too sensitive
- ex. pt is coughing and the pace maker thinks it's the pt's HR
- to decrease the sensitivity you must INCREASE the mV
too sensistive - Answer - INCREASE the mV
Under-sensing - Answer - - the pacemaker is not sensitive enough
- ex. fixed pace at 75 but pt is running up the stairs, their HR is climbing, and the pacemaker is not
picking it up
- to increase the sensitivity you must DECREASE the mV
Not sensitive enough - Answer - DECREASE the mV
Pulse generator - Answer - initiates the impulse, also contains the battery
Single Chamber Atrial pacing - Answer - - spike followed by p wave
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 or Stuvia-credit 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 Silvah. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now