Exam (elaborations)
Cardiac Dysrhythmias Questions and Answers 2024
- Course
- Institution
Cardiac Dysrhythmias
[Show more]
Content preview
Cardiac Dysrhythmias6 questions for EKG analysis - answer-Is it regular?
-Does every P have a QRS and does every QRS have a P?
-What is the Rate?
-Is the PR interval WNL?
-Is the QRS WNL?
-Is the ST segment prolonged, short or elevated?
Normal heart rate - answer60-100 bpm
Normal PR interval length - answer0.12-0.20 sec
1 small box on the EKG is - answer0.04 sec
1 big box is on the EKG is - answer0.20 sec
30 big boxes on the EKG are - answer6 sec
To determine HR on the EKG - answercount the R waves in 6 sec and multiply by 10
Normal QRS length - answer< 0.12 or equal to 0.12
Normal ST segment - answer0.08 to 0.12, not elevated
Normal sinus rhythm - answer-regular
-every P has a QRS
-rate 70 bpm
-PR interval is 0.20, WNL
-QRS length is 0.04 WNL
-ST segment is 0.08, WNL
Sinus Tachycardia - answer-regular
-every P has a QRS
-rate 140 bpm (high)
-PR interval is 0.12, WNL
-QRS length is 0.04 WNL
-ST segment is 0.08, WNL
TX: only if symptomatic, treat underlying cause
Sinus Bradycardia - answer-regular
, -every P has a QRS
-rate <60 bpm
-PR WNL
-QRS length WNL
-ST segment is WNL
TX: only if symptomatic, IV atropine or isoproterenol, and/or pacemaker
Premature Atrial Beat - answerResult of an irritable ectopic electrical impulse from with
in the atria is initiated early.
-Rhythm: irregular
-every P has a QRS - no there will be extra p waves, some may be hidden
-rate - can be WNL, <60, or >100
-PR WNL
-QRS length WNL
-ST segment is WNL
TX: Usually requires no treatment, teach reduce alcohol, caffeine intake, stress, and
smoking. MD may RX beta blocker.
Paroxysmal Supraventricular Tachycardia (PSVT) - answer-Rhythm: regular
-every P has a QRS - no, P waves often not identifiable
-rate - can be 100-280bpm (most often 150-200bpm)
-PR interval - not measurable
-QRS length - 0.6-0.10 WNL
-ST segment may be difficult to distinguish
TX: treat if symptomatic, vagal maneuvers, O2, adenosine, beta blocker, temp. pacing,
synchronized cardioversion.
Atrial Flutter - answer-Rhythm: regular (may vary depending on AV conduction)
-every P has a QRS - no, 2:1, 4:1, 6:1
-rate - Atrial: 240-360, Ventricular varies, usually <150bmp
-PR interval - not measurable
-QRS length - WNL
-ST segment and T waves are not identifiable
TX: Synchronized cardioversion, medication to slow ventricular response such as beta
blockers, Ca channel blockers, followed by a class I antidysrhythmic agent or
amiodarone.
Atrial Fibrillation - answer-Rhythm: irregularly irregular
-every P has a QRS - variable
-rate - atrial 300-600 (to rapid to count), ventricular 100-180bpm in untreated clients
-PR interval - not measurable
-QRS length - WNL
-ST segment - slight depression
TX: Synchronized cardioversion, medication to slow ventricular rate: metaprolol,
diltiazem, or digoxin, and anticoagulants to reduce risk of clots.
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 $14.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73243 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now