Exam (elaborations)
Dysrhythmias_ part 1 (1).
Dysrhythmias_ part 1 (1).
[Show more]
Seller
Follow
Content preview
Dysrhythmias: part 1- abnormal cardiac rhythms
- Prompt assessment of dysrhythmias and the patient's response to the rhythm is critical -
ANS-Dysrhythmias
(2)
- holter monitoring
- event recorder monitoring
- exercise treadmill testing
- signal-averaged ECG
- electro-physiologic study - ANS-Evaluation of dysrhythmias
(5)
- Automaticity
- Excitability
- Conductivity
- Contractility - ANS-Properties of cardiac cells
(4)
Controls
- rate of impulse formation
- speed of conduction
- strength of contraction - ANS-Nervous system control of the heart
Autonomic nervous system
(3)
- vagus nerve
- decreases rate
- slows impulse conduction
- decreases force of contraction - ANS-Nervous system control of the heart
Parasympathetic nervous system
(4)
- increases rate
- increases force of contraction - ANS-Nervous system control of the heart
Sympathetic nervous system
(2)
- Graphic tracing of electrical impulses produced by the heart
- waveforms of ecg represent activity of charged ions across membranes of myocardial cells -
ANS-Electrocardiogram monitoring
, (2)
- 12 recording leads
- six leads (leads I, II, III, aVR, aVL, and aVF) measure electrical forces in the FRONTAL plane
- six leads (V1-V6) measure electrical forces in the HORIZONTAL plane (precordial leads) -
ANS-12-lead ECG
(3)
- structural changes (ischemia, MI, Hf)
- Electrolyte imbalances (K)
- Drug toxicity
- Dysrthymias - ANS-ECG Results
(4)
- Definitive ECG changes occur in response to ischemia, injury, or infarction of myocardial cells
- changes seen in the leads, face the area of involvement.
- ischemia is reversible
- injury is questionable, may still be possible to save
- infarction ='s cell death - ANS-ECG changes associated with acute coronary syndrome
(5)
- Rhythm strip provides documentation of patient's rhythm
- allows for measurement of complexes and intervals - ANS-ECG paper
(2)
- Count the number of QRS complexes in 1 minute
- (Easily) use the 3 second markers to count the number of QRS complexes in 6 seconds and
multiply by 10
- Number of small squares between on R-R interval and divide this number into 1500
- Number of large squares between one R-R interval and divide the number into 300 -
ANS-Calculating HR w/ ECG paper
(4)
- clip excessive hair on chest wall
- Rub skin with dry gauze
- May need to use alcohol for oily skin
- Apply electrical conductive gel - ANS-Patient preparation for ECG
(4)
- Observation of HR and rhythm at a distant site
two types
- Centralized monitoring system
- sophisticated alarm system alerts when it detects dysrhythmias, ischemia, or infarction -
ANS-Telemetry monitoring
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 modockochieng06. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$11.47. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81113 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now