The Visual Nurse

*Googles Bazett’s for the 312th time*







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r = 0.999999999999


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A visual overview of ventricular dysrhythmias👆🏻

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VT versus SVT at a glance 💨


Similarities ✅
✔️FAST
✔️No identifiable P waves (few may be buried)
✔️May be stable or unstable
✔️*Stable: medication / unstable: electricity
✔️Potential to impair ventricular filling time (relaxation; diastole)
✔️Increased cardiac workload
✔️May rapidly deteriorate

Differences ❌
✔️Monomorphic or polymorphic (VT) / monomorphic (SVT)
✔️Single or multiple site (VT)
✔️Wide QRS (VT) / narrow QRS (SVT; not including aberrant conduction)
✔️Rate > ~100BPM (VT) / > *150BPM (SVT)

Rapid arrhythmia identification and patient assessment should take priority in order to anticipate the most appropriate treatments.

*Everything here presented from a *single lead basic rhythms perspective*, there are exceptions in the real world.
**SVT in this example not referring to rapid Afib/flutter or atrial tachycardias, etc.


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An introduction to basic ECG waveforms. Bookmark and save for future reference!


Presented from an introductory perspective, exceptions may exist.

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Comparing Second degree type I AV block and complete heart block on ECG:

Whereas we expect a constant PR interval in first degree AV block, as well as second degree type II AV block:

2️⃣nd degree type I (Mobitz I): PR variable
👉🏻Look for a progressive lengthening of the PR interval preceding dropped QRS
👉🏻Expect PR to reset following dropped QRS

3️⃣rd degree: PR variable (not a true PR interval due to loss of A to V communication)
👉🏻Look for a variable and constantly changing PR interval indicating no communication between atria and ventricles
👉🏻Note the QRS may be narrow or wide if the AV junction or ventricles pick up the escape beat, respectively

*From a single lead basic rhythms perspective. Exceptions exist. Bookmark for future reference!


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Unfortunately inspired by true events 🙃



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nursingschool nursingstudent nursepractitioner NCLEX paramedicstudent RN FOAMED residency exercisescience nursingeducation nurseeducator
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💻: www.thevisualnurse.com
📧: [email protected]