18 results
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
with vascular causes ... auditory findings BPPV ... • Short-lived ... positional episodes caused ... Vertigo #Algorithm #differential
Algorithm for the diagnosis of chronic diarrhea.
It is usually impractical to test and treat the many
impractical to test ... many possible causes ... pick specific tests ... to sort out the ... much smaller differential
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
they have high scores ... correctly diagnose a case ... that any given case ... disease who have low scores ... Calculation #Table #PPV
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... disease • Pull test ... texture at bald spots ... fungi Initial Laboratory ... Tests: • TSH
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic inflammation causes ... Most Common Causes ... Bronchoscopy Laboratory ... Sweat chloride test ... Bronchiectasis #pulmonary #differential
Major neurocognitive disorders (MNCD): Diagnosis and workup 

1) Clinical diagnosis Cognitive impairment + loss of autonomy
2)
deficiency, ... laboratory ... tests + imaging ... Alzheimer - 1st cause ... Dementia - 2nd cause ... MNCD #Dementia #Differential
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
- Emergency Causes ... • Provocative Tests ... absent anal wink test ... around the anus Laboratory ... #diagnosis #causes
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
TTP - Laboratory ... value is low, tests ... decrease in most cases ... indirect antiglobulin tests ... WBC count and differential
Causes of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
Causes of Peripheral ... positional vertigo (BPPV ... ) - Short-lived ... without an obvious cause ... #differential #
RPR - False Positives
Causes of a false positive RPR that are not syphilis. (False-negative treponemal tests
False Positives Causes ... False-negative treponemal tests ... reports have described ... False #Positives #differential ... diagnosis #syphilis #laboratory