14 results
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... Cheat Sheet 1) ... Interval: • 1° ... (1 mm) wide > ... @AmyChung #EKG
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
segment at (or 40-60 ms ... , often with 1-2 ... with R/S ratio > 1 ... #EKG #diagnosis ... #differential #
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
Pathologic Q - 1/ ... in 2 leads or 1 ... downgoing ST or 1 ... #EKG #diagnosis ... Interpretation #differential
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
withlK Brugada 1 ... Coved STE >2mm in >1 ... strain (neg TV 1- ... #EKG #Checklist ... electrocardiogram #differential
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
100 Wide (1) ... 3 different P waves ... bradyarrhythmia #ECG ... #EKG #diagnosis ... electrocardiogram #cardiology #differential
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Inflammatory Joint Pain - Differential ... • Reactive (e.g ... Oligoarticular (1- ... Inflammatory #JointPain #MSK ... #Differential #
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
1. ... ST elevation: Differential ... aVR • Classic EKG ... prominent terminal R wave ... #differential #
Ascites - Diagnostic Approach and Differential Diagnosis
The most common causes: cirrhosis, malignancy and heart failure. Approx
Diagnostic Approach and Differential ... than one cause (e.g ... Physical Exam: 1) ... dullness detect > 1 ... Fluid Analysis: 1)
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
classified as: • Low: <1 ... Intermediate burden: >1 ... 300 = NSVT EKG ... may not occur Differential ... PVC #diagnosis #differential
#ICUCard
RENAL
GFR
90-131
mL/min
((140-age)*Wt)/(72*Cr)
Glomerular Filtration Rate (Cockcroft)
CI Cr
90-131
mL/min
(CrU * volume)/CrS
Creatinine Clearance
FENa
0.0-1.0
%
((U/P Na)/(U/P Cr))*100
Fractional Excretion of Na+
Na req
mEq
(125-Na)*0.6*Wt
Required Sodium
FE Urea
/L for each 10 1 ... 70 mmHg on 100% mask ... 0.6, Patient awake ... in 1 min (total ... 0.5-1.0mg over 1-