11 results
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Algorithm Relative - Normal ... Positive - Low/Normal ... Abdominal Ultrasound ... carboxyhemoglobin, Abnormal ... Algorithm #Causes #Hematology
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Ultrasound Findings ... bilateral B-lines - Normal ... unilateral B-lines - Normal ... #pulmonary #differential ... #Lung #POCUS #ultrasound
Abnormal liver function tests algorithm.
 This figure details the initial response to abnormal liver blood tests.
Abnormal liver function ... initial response to abnormal ... clinical symptoms/signs ... *Abnormal USS may ... #LFTs #Abnormal
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Petechial Rash - Differential ... Thrombocytopenia - Abnormal ... deficiency - Abnormal ... Skin biopsy • Abdominal ... ultrasound #
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... • CT: Halo sign ... Exam: Can be normal ... lymphadenopathy, • Abdominal ... AIDS #pulmonary #differential
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isn’t a diagnosis. Like many things, it is a condition
Polycythemia - Differential ... Better call hematology ... , this list is long ... exogenous, EPO levels: normal ... #Polycythemia #Differential
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... purpura: Strong sign ... strength & enzymes normal ... fluid (CSF) is abnormal ... gut involvement, abdominal
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- GI tract: abdominal ... - Recurrent oral ... purpura: strong sign ... Supply gut -> abdominal ... Tests: • CBC • LFT
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
systemic sx + signs ... very remarkable w/differential ... 50 in GCA, but normal ... day, followed by long ... GCA #Temporal #Signs
Sarcoidosis - Diagnosis and Management Summary
Epidemiology
1) High incidence in Scandinavian countries (11-24 cases per 100,000 individuals
granulomas within the lungs ... anterior/posterior MSK ... ), liver (pain/abnormal ... LFT): 12-20%, spleen ... Diagnosis #Management #Signs