113 results
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Diagnostic Algorithm ... auditory findings BPPV ... disease • Tinnitus ... #differential #diagnosis ... #neurology
Differentiating Benign Paroxysmal Positional Vertigo (BPPV) From Vestibular Neuritis-Labyrinthitis
BENIGN PAROXYSMAL POSITIONAL VERTIGO
 • Age: More common
Positional Vertigo (BPPV ... : Positive usually ... consistent with BPPV ... Labyrinthitis #diagnosis ... #neurology #comparison
Positive Romberg Test on Physical Exam

The Romberg test is a test of the body's proprioception (sense
Positive Romberg ... Test on Physical ... Sign #Positive # ... PhysicalExam #clinical #video ... #neurology #cerebellar
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
/ disease present ... true negatives / disease ... / all positives ... #calculations #diagnosis ... #specificity #PPV
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
if concern for nodular ... thyroid disease ... Graves disease – ... specific, so if positive ... Check pregnancy test
Whipple Disease (Tropheryma whipplei) - Diagnosis and Management 

Caused by: Tropheryma whipplei

Symptoms and Signs:
1. Migratory poly/oligoarthralgia
Whipple Disease ... Oculomasticatory/oculo-facial-skeletal ... T. whipplei tests ... T. whipplei test ... MatthewHoMD #Whipple #Disease
Romberg's Test for Proprioception
History: First described in the 19th century in patients with tabes dorsalis (later
syphilis) Meaning: Positive ... open and closed Positive ... • Cerebellar disease ... Unilateral vestibular disease ... #neurology #diagnosis
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
tinnitus (Méniére's disease ... nose) • Head Position ... worsen with head position ... Central #Vertigo #diagnosis ... symptoms #comparison #neurology
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
patients with anemia, diagnose ... Test for celiac ... disease with serology ... is positive Bidirectional ... Evaluation #workup #diagnosis
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
who test positive ... PPV: proportion ... of positive tests ... is low, then PPV ... #calculations #diagnosis