598 results
Feedback Loop: Prolactin (PRL)
 • PRL levels exhibit diurnal, menstrual, and age-related variation
 • TRH has
Loop: Prolactin (PRL ... ) • PRL levels ... stimulatory effect on PRL ... secretion Prolactin (PRL ... #Prolactin #PRL
Second Degree AV Block Type I aka Mobitz I / Wenckebach 
 • Normal P waves.
• As the PRI ... • The PRI (may ... last conducted PRI ... increment in the PRI ... cardiology #ecg #ekg #electrocardiogram
Atrial Fibrillation and WPW - Pre-Excitation AFib
In pre-excitation + a-fib with RVR:
 • All AV nodal
Fibrillation and WPW - Pre-Excitation ... AFib In pre-excitation ... clinical #ecg #ekg #electrocardiogram
Knuckle Sign on ECG - Acute Pericarditis

Electrocardiogram of a 68-year-old woman two days after coronary artery
Pericarditis Electrocardiogram ... is evidence for PR ... II and aVL, and PR ... Pericarditis #ECG #EKG #Electrocardiogram
Wolff-Parkinson-White Syndrome

WPW is a congenital abnormality characterized by an abnormal accessory conduction pathway between the atria
delta wave, short PR ... msec) 3 Short PR ... interval (PR < ... Cardiology #ECG #EKG #Electrocardiogram
Second Degree Heart Block, Mobitz Type I (Wenckebach)

P waves and QRS complexes are normal but... 
•
PR interval ... Cardiology #EKG #ECG #Electrocardiogram
ECG Cheat Sheet

ECG rapid view: It is organized roughly how one would typically read an ECG.
ventricle), Intervals (PR ... Cheatsheet #Cribsheet #Electrocardiogram
Second Degree Heart Block, Mobitz Type II

• p waves are normal 
• QRS complexes are usually
branch block • PR ... Cardiology #EKG #ECG #Electrocardiogram
Multifocal Atrial Tachycardia (MAT) on EKG
 • Heart rate > 100 bpm (usually 100-150 bpm)
 •
with varying PP, PR ... cardiology #EKG #ECG #Electrocardiogram
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
• Prolonged PR ... • Prolonged PR ... PR longest before ... PR shorted after ... Diagnosis #EKG #electrocardiogram