22 results
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
- Malignancy (e.g ... CNS pathology (e.g ... hemorrhage) - Pulmonary ... pathology (e.g. ... #Table #Causes
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Blood Cell (RBC) Morphology ... Chemotherapy (e.g ... #differential #diagnosis ... #hematology #microscopy ... #atlas #nomenclature
Urine Microscopy - Casts
Acellular Casts
 • Hyaline Casts - Consists of only precipitated Tamm-Horsfell protein without
Urine Microscopy ... CastsHyaline ... colored compounds (e.g ... #Urine #Microscopy ... interpretation #diagnosis
Lung Nodule - Differential Diagnosis Algorithm
Nodule on > 2 Years Without a Change in Size:
 •
Benign Neoplasm (eg ... cannonball lesions"; Eg ... polyangiitis (GPA) / microscopic ... #Algorithm #Causes ... #Pulmonary
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... listed in the table ... vascular diseases (e.g ... #Diagnosis #Radiology ... #Pulmonary #CTChest
Massive Hemoptysis - Diagnosis and Management
 • Definitions: 
   - Hemoptysis = bleeding from
Massive Hemoptysis - Diagnosis ... respiratory tract (e.g ... has potential to cause ... Interventions - Cold Saline ... treatment #workup #pulmonary
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
- Differential Diagnosis ... spondyloarthritis (e.g ... spondyloarthritis (e.g ... #causes #primarycare ... #table
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
polyangiitis), MPA (microscopic ... recent DAN) • EMG ... Goodpasture's cause ... FINDINGS: • U/A: microscopic ... hematuria, RBC casts
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... - Differential Diagnosis ... QRS complex Pulmonary ... #cardiology #ecg ... #ekg #electrocardiogram
Invasive Aspergillus (IA) - Diagnosis and Management
Aspergillus is ubiquitous in nature. Most invasive infections are caused
infections are caused ... immunosuppression (eg ... presentations: • Pulmonary ... Non-pigmented (hyaline ... sometimes have this morphology