30 results
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
proportion of truly diseased ... identified as diseased ... they have high scores ... who have low scores ... Calculation #Table #PPV
Prothrombin Time (PT) and Partial Thromboplastin Time (PTT)

Prothrombin Time (PT) - Often Elevated in:
 • Vitamin
inhibitor • Liver disease ... • Factor XI, IX ... elevated in: • DIC ... • Underfilled test ... Thromboplastin #laboratory
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Hemolysis - Differential ... MAHA: TTP, HUS, DIC ... , Drugs, Liver Disease ... Hypophostphatemia Laboratory ... Tests: - Haptoglobin
Dix-Hallpike Maneuver for BPPV

Procedure:
1. Make the patient sit on examination table, such that the shoulders would
for BPPV Procedure ... 45° towards the test ... throughout the test ... Supports the patient ... affected ear #Dix
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
auditory findings BPPV ... • Short-lived ... or supine roll test ... Méniére's disease ... Vertigo #Algorithm #differential
Dix-Hallpike Maneuver for the Diagnosis of BPPV (Animated)

The Dix–Hallpike test (Nylen Barany test) is a diagnostic
Dix-Hallpike Maneuver ... the Diagnosis of BPPV ... test (Nylen Barany ... test) is a diagnostic ... identify posterior BPPV
Dix-Hallpike Maneuver for the Diagnosis of BPPV
The Dix–Hallpike test (Nylen Barany test) is a diagnostic maneuver
Dix-Hallpike Maneuver ... the Diagnosis of BPPV ... The Dix–Hallpike ... test (Nylen Barany ... test) is a diagnostic
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
pathognomonic laboratory ... tests in Behcet ... syndrome (Clinical Dx ... is a skin prick test ... ) Differential Diagnosis
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... Capitis - Skin Disease ... • Pull test ... texture at bald spots ... Tests: • TSH
Undifferentiated critical congenital heart disease: Patterns of Presentation 
Pink baby:
 • Presents at 1-6 mo
congenital heart disease ... BNP useful for dx ... • Hyperoxia test ... aortic stenosis • Ddx ... #presentation #Differential