1007 results
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
vs Noninfective Causes ... • Autoimmune disease ... HACEK • Culture-negative ... #Noninfective #Causes ... #Differential #Diagnosis
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
true positives / disease ... FP + TN) = true negatives ... / disease absent ... / all negatives ... #calculations #diagnosis
Eosinophils (Eos) and hypereosinophilia (HE)
Caused by eosinophilopoietic cytokines
Common causes:
 - Drug reaction
 - Helminth infection
 -
hypereosinophilia (HE) Caused ... cytokines Common causes ... Rare causes: ... #Differential #Diagnosis ... #Causes
ILD of Known Cause - Differential Diagnosis
Exposure:
 • Occupational: Asbestosis, Silicosis, Hypersensitivity, Pneumonitis
 • Treatment Related:
ILD of Known Cause ... - Differential Diagnosis ... Pneumonitis • Treatment ... BrighamChiefs #ILD #Causes ... #Differential #Diagnosis
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Proves cause-effect ... who test negative ... , -1 = perfect negative ... but not on the causal ... #calculations #diagnosis
General overview of lung diseases. 

#diagnosis #causes #lung #disease #restrictive #obstructive #pulmonary #respiratory #pearls #ddxof
overview of lung diseases ... #diagnosis #causes ... #lung #disease
Approach to Low Back Pain - Differential Algorithm
- Non-MSK
- Axial / Musculoskeletal
- Radicular
- Systemic Disease (Do
Algorithm - Non-MSK ... Radicular - Systemic Disease ... Differential #Algorithm #Causes
Multiple Myeloma and Monoclonal Gammopathies
C - HyperCalcemia- calcium > 11 mg/dL / >1 mg/dL the ULN
R
ULN R - Renal disease ... Causes of false- ... negative SPEP: ... amyloidosis Other causes ... Gammopathies #MGUS #diagnosis
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
Causes of Proteinuria ... - Differential Diagnosis ... Tubular Proteinuria (Negative ... Minimal change disease ... #Differential #Diagnosis
Pathogens in Pneumonia

Here is a quick review of the pathogens causing pneumonia (useful for enumerating differentials
strep - Gram-negatives ... structural lung disease ... structural lung disease ... #Microbiology #Causes ... #Agents #Diagnosis