Exam (elaborations)
cardiac dysrhythmias Questions and Answers
- Course
- Institution
cardiac dysrhythmias
[Show more]
Content preview
Types of dysrhythmiasSinus bradycardia - answer-ECG: HR <60 bpm, rhythm regular
-S/sx: pale, cool skin; hypotension, weakness, angina, dizziness or syncope; confusion
or disorientation; and shortness of breath
Treat: atropine. if that's ineffective, transcutaneous pacing, or a dopamine or epi
infusion
Sinus tachycardia - answer-ECG: HR 101-200 bpm, rhythm regular
-Treat: depends on underlying cause (treat pain if caused by pain)
-S/sx: dizziness, dyspnea, hypotension
-Associations: exercise, fever, pain, hypotension, hypovolemia, anemia, hypoxia,
hypoglycemia, myocardia ischemia, heart failure, hyperthyrodism, anxiety, and fear
Premature atrial contraction (PAC) - answer-Contraction starting from an ectopic focus
in the atrium and coming sooner than the next expected sinus beat
-ECG: HR varies, rhythm irregular. P wave has a different shape, or it may be hidden in
the T wave
-S/sx: may report palpations or that heart "skipped a beat"
-Treat: b-blockers
-Associations: emotional stress, physical fatigue, tobacco, caffeine, or alcohol. Hypoxia,
electrolyte imbalances, hyperthyroidism, COPD, heart disease
Paroxysmal supraventricular tachycardia (PSVT) - answera dysrhythmia starting in an
ectopic focus anywhere above the split of the bundle of His
-S/sx: prolonged episode and HR >180 bpm will cause decreased CO b/c of reduced
stroke volume. Hypotension, palpations, dyspnea, and angina
Treat: vagal stimulation and drugs
-Associations: overexertion, emotional stress, deep inspiration, caffeine, and tobacco.
Rheumatic heart disease, CAD, cor pulmonale
Atrial flutter - answer-Atrial tachydysrhythmia identified by recurring, regular, sawtooth-
shaped flutter waves that originate from a single ectopic focus in teh right atrium
-ECG: atrial rate 200-300 bpm, regular. Ventricular rate ~150, regular
-Treat: b blockers and Ca channel blockers. radiofrequency catheter ablation.
-Associations: CAD, HTN, mitral valve disorders, pulmonary embolus, chronic lung
disease, cor pulmonale, cardiomyopathy, hyperthyroidism, and the use of drugs like
digoxin, quinidine, and epi
** these pts have increased risk for stroke
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 jw638729. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $16.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
76658 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now