Cardiology Nursing 1 Humber Final EXAM QUESTIONS AND CORRECT DETAILED ANSWERS WITH DIAGRAM ILLUSTRATIONS
45 views 0 purchase
Course
Cardiology Nursing 1 H
Institution
Cardiology Nursing 1 H
Cardiology Nursing 1 Humber Final EXAM
QUESTIONS AND CORRECT DETAILED ANSWERS
WITH DIAGRAM ILLUSTRATIONS
sinus rhythm
regular rhythm
Set by SA node at 60 to 100 bpm
P waves normal
normal qrs
PR 0.12 - 0.2
normal qrs less than 0.10
wide qrs is
greater than 0.12
Sinus Tachycardia
100-160...
Cardiology Nursing 1 Humber Final EXAM QUESTIONS AND CORRECT DETAILED ANSWERS WITH DIAG RAM ILLUSTRATIONS sinus rhythm regular rhythm Set by SA node at 60 to 100 bpm P waves normal normal qrs PR 0.12 - 0.2 normal qrs less than 0.10 wide qrs is greater than 0.12 Sinus Tachycardia 100-160 bpm SA node reduced time for ventricle filling assess for SOB or chest pain a prolonged QT interval more prone to arrhythmia NSR reflects the heart's normal electrical activity, providing synchrony bet ween the atria and the ventricles. Sinus tachycardia occurs when the sinus node discharges impulses too fast (100 - 160 beats/minute). All other parameters are normal Facts about sinus tachycardia Normal response of heart in certain circumstances (for example exercise) •Begins and ends gradually in contrast to other tachycardias •Usually benign arrhythmia that goes away when underlying cause is treated •Common causes: Anxiety, hypoxia, hypovolemi a, hypotension, heart failure, pain, drugs that increase sympathetic tone (epinephrine, norepinephrine, dopamine, dobutamine, isoproterenol, nitroprusside), and drugs that decrease parasympathetic tone (atropine) •Persistent sinus tachycardia may result i n decreased cardiac output due to a decrease in stroke volume. Cardiac output = stroke volume ×heart rate. A decrease in either stroke volume or heart rate may result in a decrease in cardiac output. Sinus bradycardia occurs when the sinus node discharges impulses too slow (40 - 60 beats/minute). All other parameters are normal. Sinus bradycardia features regular rhyth m, rate 40 -60 bpm Normal p waves PR interval normal 0.12 to 0.2 QRS normal less than 0.1 Facts about sinus bradycardia Normal response of heart in certain circumstan ces (for example relaxation, sleep) •Most common arrhythmia associated with acute inferior wall myocardial infarction •Other causes: Reperfusion rhythm following myocardial reperfusion procedures (thrombolytic administration, angioplasty); vagal stimulat ion; sleep apnea; hyperkalemia; increased intracranial pressure; disease of SA node; and administration of drugs, such as digitalis, calcium channel blockers, and beta blockers •Persistent bradycardia may result in decreased cardiac output
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 norajuma13. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
