13 results
Classic Findings During Hallpike Test in Posterior Canal Benign Paroxysmal Positional Vertigo (BPPV)
 • Latency (delay
During Hallpike Test ... in Posterior Canal ... toward the downward ear ... with repeated testing ... #physicalexam #testing
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Varies • No neurologic ... Positive Hallpike test ... (posterior canal ... or supine roll test ... #Algorithm #differential
Helicobacter Pylori Testing  Methods - Sensitivity and Specificity

Serology - 85% - 79% - Does not
Helicobacter Pylori Testing ... Methods - Sensitivity ... Urea breath test ... first line test ... #Laboratory #Diagnosis
Causes of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
usually lasting ... Occlusion of posterior ... with significant neurologic ... #Causes #differential ... #diagnosis #neurology
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
but lower sensitivity ... more time for the laboratory ... • Hepatitis B serology ... testing • Serum ... Rheumatoid #Arthritis #laboratory
1,3-Beta-D-Glucan and Galactomannan Testing Sensitivity Specificity and False Positives
1,3-Beta-D-Glucan
 • Cell wall component of many fungi
Galactomannan Testing ... the use of this test ... in BAL does not differentiate ... Galactomannan #Fungal #Testing ... FalsePositives #Laboratory
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
may precede the neurologic ... sequences improve sensitivity ... Reversible course Differential ... thrombosis Testing ... diagnosis #management #neurology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
perineum, and posterior ... • Provocative Tests ... absent anal wink test ... around the anus Laboratory ... diagnosis #causes #neurology
Diagnostic algorithm for differentiating vestibular neuritis from stroke in patients with AVS. This sequence of testing
components: targeted neurologic ... hearing yielded 100% sensitivity ... , Head Impulse Test ... Nystagmus, and Test ... Diagnosis #AVS #Posterior
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
skin injury) • Neurologic ... pathognomonic laboratory ... tests in Behcet ... Behcet disease) Differential ... Giant retinal tears