427 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
/0.8)] - PaO2 Simplified ... Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... ARDS, Pneumonia and ... Interstitial Disease and
Platypnea-Orthodeoxia Syndrome on Physical Exam
The case of a patient with a diagnosis of cirrhosis and platypnea-orthodeoxia
Platypnea-Orthodeoxia Syndrome ... platypnea-orthodeoxia syndrome ... in paO2 from 78 ... #Orthodeoxia #Syndrome ... PhysicalExam #clinical #video
Non-Invasive Ventilation (BiPAP) Algorithm - Indications and Contraindications
Indications for NIV:
 • COPD - pH <7.35, pCO2
Ventilation (BiPAP) Algorithm ... COPD - pH <7.35, pCO2 ... - pH <7.35, pCO2 ... daytime pCO2 > 6.0 ... Ventilation #BiPAP #Algorithm
Nephritic vs Nephrotic Syndrome

Step 1: If the patient has hematuria and/or proteinuria, think about nephrotic/nephritic syndromes.
Step
Nephritic vs Nephrotic Syndrome ... has hematuria and ... nephrotic/nephritic syndromes ... Nephritic #Nephrotic #Syndrome ... #Comparison #Algorithm
External Snapping Hip Syndrome - Coxa Saltans

External snapping hip or coxa saltans: sliding of the iliotibial
External Snapping Hip Syndrome ... the iliotibial band ... Snapping #Hip #Syndrome ... Iliotibial #clinical #video ... #physicalexam #msk
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Differential Diagnosis Algorithm ... of Lumbar Spine and ... arthritis - (Reiter’s syndrome ... Joint #Disorders #msk ... Differential #Diagnosis #Algorithm
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Differential Diagnosis Algorithm ... acidosis: Proximal and ... HTN Absent: Loop and ... , Gitelman syndrom ... Differential #Diagnosis #Algorithm
Cushing Syndrome Testing Algorithm
INDICATIONS FOR TESTING:
 • Suspected Cushing syndrome (central obesity, muscle weakness, refractory hypertension)
Testing:
Cushing Syndrome ... Testing Algorithm ... Suspected Cushing syndrome ... between 11 pm and ... #diagnosis #algorithm
Rotator Cuff Syndrome - SITS
Supraspinatus, Infraspinatus, Teres minor, and Subscapularis.
Causes: Calcific supraspinatus tendinitis 
Signs: painful abduction
Rotator Cuff Syndrome ... , Teres minor, and ... Rotator #Cuff #Syndrome ... diagnosis #sports #MSK
Freiberg's Test for Piriformis Syndrome

Flex the hip to 90 degrees, internally rotate the hip.
Pain in the
for Piriformis Syndrome ... #Piriformis #syndrome ... lumbar #clinical #video ... #physicalexam #msk