28 results
Blurry Vision - Differential Diagnosis Framework

Anatomical Approach to Eye Disease:
1. Lids/Lashes
2. Extraocular Muscles/Motility
3. Conjunctiva/Sclera
4. Cornea
5. Anterior
Iris 7. ... Trauma Cornea/Iris ... : • Cataracts ... Concussion Other Causes ... ophthalmology #causes
Hepatitis B Virus Serology and Interpretation
HBsAg - Anti-HBs - Anti-HBc - HBeAg - Anti-HBe
 - Acute
(about 10% of cases ... immunity) - False-positive ... ; less commonly, ... Interpretation #diagnosis #laboratory
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
10% of all lupus cases ... calcium-b) • Laboratory ... - Cytopenia - Less ... Discontinuation of causal ... versus DIL • Laboratory
Vision Loss - Differential Diagnosis
Chronic: 
  - Cornea: Scarring, Edema
  - Lens: Cataracts
Scarring, Edema - Lens ... : Cataracts - ... Macula: Macular ... Unilateral, Painless: Lens ... Differential #Diagnosis #causes
Red Eye - Differential Diagnosis Framework

What?
Redness in the eye can be caused by many conditions and
Common Causes: ... Episcleritis Ocular ... Anterior Chamber/Uvea/Iris ... UVEA: comprised Iris ... Conjunctivitis #ocular
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
drugs that may cause ... false positive ... DrugScreens #UDS #Laboratory
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
versus DIL • Laboratory ... - Anti-ENA - Positive ... - Anti-dsDNA - Positive ... in 60-80% of cases ... Anti-histone - Positive
Chronic Vision Loss by Anatomic Location - Differential Diagnosis Algorithm
Cornea:
 • Keratoconus
 • Stromal Scaring
 •
• Pterygium Lens ... Visibility: • Cataract ... • Age Related Macular ... Hemorrhage and Macular ... Diagnosis #Algorithm #Causes
Traumatic Red Eye - Differential Diagnosis Algorithm
Surface Injury:
 • Corneal Abrasion
 • Ultraviolet Keratitis
 • Chemical
: Abrasion • Iris ... mydriasis • Lens ... : Cataract, dislocation ... Diagnosis #Algorithm #Causes
1,3 Beta-D-Glucan and Galactomannan - Pathogens, and Testing Characteristics
1,3 ß-D-glucan:
 • Most fungi excluding mucor and
pneumocystis False positives ... Glucan-containing gauzes ... fungi • False positives ... #Specificity #Laboratory