831 results
Complement 1 esterase inhibitor (C1-INH) Deficiency Testing Algorithm
INDICATIONS FOR TESTING:
 • Recurrent angioedema (without urticaria)
 •
Complement 1 esterase ... ARUPConsult @ARUPLabs #C1INH ... #Complement #esterase
Leukocyte Esterase and Nitrites on Urinalysis
Leukocyte Esterase: Urinary tract infection, Indwelling urinary catheter, Recent instrumentation of
Leukocyte Esterase ... Urinalysis Leukocyte Esterase ... / #Leukocyte #Esterase
Liver Chemistries - Interpretation of LFTs

R-value: Serum (ALT/ULN ALT) / (Alk phos/ULN ALP)
 • R >
phos/ULN ALP) ... Cholestasis • ALP ... disease • If ALP ... both are normal - ALP ... • Elevation of ALP
Abnormal Liver Function Tests - Differential Diagnosis Algorithm for Transaminitis
Hepatocellular Pattern (ALT or AST > ALP):
or AST > ALP): ... • Severe - ALT ... • Moderate - ALT ... Cholestatic Pattern (ALP ... > ALT or AST):
Urinalysis Testing - UTI Sensitivity and Specificity
 - Leukocyte esterase 
 - Nitrite 
 - WBCs
- Leukocyte esterase
Liver Function Test (LFTs) Elevation
AST - Cardiac and skeletal muscle, kidney, brain
ALT - More specific for
kidney, brain ALT ... for the liver ALP ... Transaminase, ALP ... / ULN ALT) / (ALP ... / ULN ALP)
Urinalysis Interpretation (UA)

Bacteria, Leukocyte esterase, WBC, Nitrite, RBC, Epithelial 
cells, pH

#Diagnosis #Urinalysis #Interpretation #Analysis
Bacteria, Leukocyte esterase
Alkaline Phosphatase (ALP) Elevation - Differential Diagnosis Algorithm

ALP:
 - Enzymes that catalyze hydrolysis of organic phosphate
Alkaline Phosphatase (ALP ... Diagnosis Algorithm ALP ... organic phosphate esters ... - Increased ALP ... #Phosphatase #ALP
Acute Liver Injury - Differential Diagnosis Algorithm

Vascular Causes of Acute Liver Injury: 
 • Hepatic vein:
specificity to elevated ALP ... • AST/ALT > ALP ... GGT/5-NT: ↑ - ALP ... disease - If ALP ... hemolysis) • ALP
Liver Enzymes (LFTs) - Causes of Hepatocellular and Cholestatic Liver Injury
Hepatocellular Liver Injury
 • AST/ALT elevation
Injury • AST/ALT ... elevation > Alk ... phos • ALT more ... • R value = (ALT ... + ULN ALT) / (alkaline