791 results
Sinus Arrhythmia - ECG Diagnosis
Remember in Sinus arrhythmia, the P to P varies by > 0.16
varies by > 0.16 sec
Richmond Agitation Sedation Scale
+4 - Combative, Violent, Immediate Danger to Staff
+3 - Very Agitated - Pulls
& Contact > 10 sec ... & Contact < 10 sec
Intraosseous (EZ-IO) Access in the Humeral Head of an adult

Rule of 45s:
- 45mm needle
- 45° angle
R atrium in 3 sec
Poor Skin Turgor in Hypovolemia on Physical Exam
Positive when >3 sec after 3 sec of pinching
Positive when >3 sec ... after 3 sec of
Dense Spontaneous Echo Contrast (SEC) on POCUS
Rouleaux flow on POCUS.  RBCs stick together to form
Echo Contrast (SEC ... @LDCritCare #SEC
Progression of EKG changes in Acute Coronary Syndrome (ACS)
Hyperacute T waves:
 • Broad-based and symmetrical, usually
: Qwave ≥ 0.02 sec ... Q wave ≥ 0.03 sec
Wide Complex Tachycardia - ECG Definition and Causes
 • Wide Complex Tachycardia (WCT) is a cardiac
QRS width ≥ 0.12 sec
Constrictive Pericarditis on Echocardiogram
A 55-year-old female marathon runner presents to clinic w/ 6-months of worsening breathlessness
velocity of 9.5 cm/sec
First Degree AV Block
 • The P wave is normal in morphology.
 • PR interval greater
greater than 0.20 sec
Fluid Responsiveness and Fluid Tolerance Testing - OnePager Summary
Fluid resuscitation can be beneficial when required or
quickly (30-90 sec ... CO during a 15 sec