824 results
Low Alkaline Phosphatase - Hypophosphatasia 

Is Low Alkaline Phosphatase Of Clinical Importance?

ALP enzyme- Discovered in 1923
Low
ALP enzyme- Discovered ... in 1923 Low ALP ... 1948 by Rathbun ALP ... synthesized in: ... Neuropathy ALP
Liver Chemistries - Interpretation of LFTs

R-value: Serum (ALT/ULN ALT) / (Alk phos/ULN ALP)
 • R >
/ULN ALT) / (Alk ... specificity to elevated ALP ... • AST/ALT > ALP ... GGT/5-NT: ↑ • ALP ... hemolysis) • 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):
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)
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
Pathways Involved in Protein and Amino Acid Metabolism in Chronic Kidney Disease. The tricarboxylic acid (TCA)
Urea is synthesized
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
Lipoprotein Metabolism

Enterocytes release absorbed lipids the form of triglyceride-rich chylomicrons. These are acted upon by endothelial
cholesterol to synthesize
Liver Chemistry Tests - AST, ALT, Alkaline Phosphatase and Bilirubin Metabolism
AST and ALT:
 • AST: liver
Chemistry Tests - AST, ALT ... Metabolism AST and ALT ... cytoplasmic (CAST) • ALT ... clearance - AP ... bile canaliculi (ATP-dependent
Elevated Liver Enzymes - Differential Diagnosis Algorithm
Severe ALT > 15x ULN
 • Viral
 • Drugs/Toxins
 •
Algorithm Severe ALT ... • Pregnancy - AFLP ... HELLP Moderate ALT ... • Others Mild ALT