LIVER FUNCTION TEST Flashcards
Liver specific enzymes
ALT
ALP
5’-NT
GGT
Test method for bilirubin which uses 50% methanol as an accelerator
Malloy & Evelyn
In ehrlich’s reaction, diazo salt is composed of:
Sulfanilic acid in hydrochloric acid & sodium nitrite
What is the accelerator in Jendrassik & Grof method?
Caffeine benzoate-acetate
Conjugated bilirubin which is covalently bound to albumin
Delta bilirubin
T or F:
Diazo salt + bilirubin = Azobilirubin
True
Final color in Jendrassik-Grof method
Blue color
Reference method for total bilirubin
Modified jendrassik-grof
What is the conversion factor for bilirubin?
17.1
T or F:
Bilirubin is high in adults compared to infants
False; higher in infants
Colorless end product of bilirubin metabolism
Urobilinogen
Urobilinogen is increased in ___
Biliary obstruction
Hepatocellular
Carcinoma (HCC)
Method for urine urobilinogen
Modified ehrlich method
Ehrlich’s reagent is composed of ___
P-dimethyl aminobenzaldehyde
What does a clay-colored fecal sample indicate?
Decreased levels of urobillinogen
Reducing agent in fecal urobilinogen? in urine urobilinogen?
Urine - Ascorbic acid
Fecal - Alkaline ferrous hydroxide
Why is urine urobilinogen high in pre-hepatic?
Due to overproduction of bilirubin; madami nacoconvert to urobilinogen
Other name for AST
Serum glutamic oxaloacetic transaminase
How can you determine if the ALP elevations is due to the liver and not from any other condition?
Order 5’-NT test
If normal, it means bone disease. if both ALP and 5’NT is increased, it is a liver disease.
A sensitive test for liver disease which can also differentiate biliary obstruction and bone disease
y - Glutamyltransferase
Disorders in which liver phosphatases are elevated
A - lcoholism
B - iliary obstruction
C - irrhosis
LDH isoenzyme found in skeletal muscle
5-MMMM
The only LDH isoenzyme that is important in liver diseases
LDH-4
2 purposes of PT
Test for liver synthetic ability
Biliary obstruction
Bile is essential for the absorption of Vitamin K, which is important for what clotting factors?
Clotting factors: II, VII, IX, X
Also called microdiffusion method and the reference method
Conway method
Uses bromophenol blue
Colorimetric method
Only marker that can be detected through liver biopsy
HBcAg (Hepa B Core Antigen)
Marker for non-infectious state of disease
Anti-HBeAg
Marker for recovery
Anti-HBs