354 results
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Diagnostic Algorithm ... with vascular causes ... positional episodes caused ... disease • Tinnitus ... Dizziness #Vertigo #Algorithm
Whipple Disease (Tropheryma whipplei) - Diagnosis and Management 

Caused by: Tropheryma whipplei

Symptoms and Signs:
1. Migratory poly/oligoarthralgia
Whipple Disease ... Management Caused ... T. whipplei tests ... T. whipplei test ... #diagnosis #algorithm
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Proves cause-effect ... who test positive ... 100%, then all positive ... true positives: ... but not on the causal
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
) - Diagnostic Algorithm ... Graves disease – ... specific, so if positive ... Check pregnancy test ... Hyperthyroid #Diagnosis #Algorithm
Romberg's Test for Proprioception
History: First described in the 19th century in patients with tabes dorsalis (later
syphilis) Meaning: Positive ... Observe when patient closes ... open and closed Positive ... • Cerebellar disease ... Unilateral vestibular disease
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Renal parenchymal disease ... Renal ultrasound, Tests ... of renal disease ... • Renovascular disease ... conditions (supine position
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
Medications that Can Cause ... on Drug Tests ... medications can cause ... on drug tests? ... Protonix), may cause
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
proportion of truly diseased ... identified as diseased ... correctly diagnose a case ... that any given case ... it has a narrow focus
Causes of Pediatric Wheezing - Differential Diagnosis Algorithm
CXR Abnormal:
 • Pulmonary Sequestration
 • Congenital Adenoid Cystic
Causes of Pediatric ... Differential Diagnosis Algorithm ... : • Asthma* Positive ... Endobronchial Disease ... #Causes #Peds #
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Causes of Polycythemia ... Differential Diagnosis Algorithm ... Idiopathic JAK-2 Positive ... determination, Smoking, positive ... #Causes #Hematology