Ravi Singh K @rav7ks
1.2M 744 368
Academic Hospitalist and Associate Program Director @SinaiBmoreIMRes, Medicine clerkship director GW School of Medicine and Health Sciences RMC at Sinai, Hopkins Medicine Clerkship Site Director, Clinical reasoning,Simulation and POCUS enthusiast - https://twitter.com/rav7ks
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Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
and Focal) Differential ... Diagnosis Algorithm ... planopilaris Pattern ... #Diagnosis #Algorithm ... #causes
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
ANA Patterns and ... • Nucleolar: Diffuse ... Antinuclear #Antibodies #ANA ... #patterns #rheumatology ... #diagnosis #differential
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
significant • Pattern ... : The ANA patterns ... Patterns and Associated ... • Nucleolar: Diffuse ... #diagnosis #differential
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - Differential ... Diagnosis Algorithm ... Elevated PTH (High ... #Diagnosis #Algorithm ... #causes #endocrinology
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Hypokalemia - Differential ... Diagnosis Algorithm ... Syndrome • HTN, High ... #Diagnosis #Algorithm ... #causes #potassium
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Bronchopneumonia High ... HighRes #Chest #CT #Patterns ... #Differential #
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isn’t a diagnosis. Like many things, it is a condition
Polycythemia - Differential ... Diagnosis Algorithm ... levels: normal/high ... about secondary causes ... #Diagnosis #Algorithm
Lactic Acidosis - Overview and Pathophysiology
Lactic acid is an endogenous substrate for gluconeogenesis, that is constantly
Lactic acid is an ... other tissues and ... why LR does not cause ... Acidosis #types #differential ... pathophysiology #classification
Aortic Dissection Pearls
Aortic dissection is caused by a tear in the tunica intima, the innermost layer
dissection is caused ... dissection in any ... • Abrupt onset and ... Assess for high ... Pulse deficit/differential