16 results
Prothrombin Time (PT) and Partial Thromboplastin Time (PTT)

Prothrombin Time (PT) - Often Elevated in:
 • Vitamin
inhibitor • Liver disease ... • Underfilled test ... Thromboplastin #laboratory ... #hematology #diagnosis
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
- Differential Diagnosis ... Capitis - Skin Disease ... • Pull test ... Tests: • TSH ... #Differential #Diagnosis
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
- Differential Diagnosis ... Hypophostphatemia Laboratory ... Tests: - Haptoglobin ... #Differential #Diagnosis ... #hematology
Liver Chemistry Tests - AST, ALT, Alkaline Phosphatase and Bilirubin Metabolism
AST and ALT:
 • AST: liver
Liver Chemistry Tests ... cytoplasmic (CAST ... Liver #Chemistry #Tests ... #Laboratory #Metabolism ... Pathophysiology #Diagnosis
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... more time for the laboratory ... (to support a diagnosis ... Rheumatoid #Arthritis #laboratory ... #workup #diagnosis
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
artery aneurysms Diagnosis ... pathognomonic laboratory ... ) Differential Diagnosis ... Behcet #Syndrome #diagnosis ... signs #symptoms #rheumatology
Clinical diagnosis of Alcoholic Hepatitis (AH)
 • Onset of jaundice within prior 8 weeks
 • Ongoing
Clinical diagnosis ... Presence of atypical laboratory ... tests (e.g., AST ... #diagnosis #Alcoholic ... Hepatitis #AH #hepatology
Clinical Diagnosis of Autoimmune Hepatitis
 - Onset of jaundice within prior 8 weeks
 - Ongoing consumption
Clinical Diagnosis ... Presence of atypical laboratory ... tests (e.g., AST ... Autoimmune #Hepatitis #Diagnosis ... #Hepatology #AIH
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
IgG4-Related Disease ... PET-CT Imaging (→ Diagnostic ... relapse No specific laboratory ... tests: • IgG4 ... IgG4 #Related #Disease
Commonly Observed Laboratory Findings in Hepatic / Liver Failure
 - Elevated conjugated and unconjugated bilirubin -
Commonly Observed Laboratory ... chronic liver disease ... liver glycogen stores ... LiverFailure #Hepatic #Hepatology ... #Laboratory #Diagnosis