4. According to function of liver
According to function of liver
Classification of LFT
Tests based on synthetic function
Tests based on synthetic function
Tests based on excretory function
Tests based on excretory function
Tests based on detoxification function
Tests based on detoxification function
Tests based on metabolic function
Tests based on metabolic function
Determination of serum enzymes
Determination of serum enzymes
I
II
III
IV
V
15. • Serum bilirubin estimation is based on van den Berg’s diazo
reaction.
• Diazo reagent consists of diazotized sulfanic acid
Determination of Serum Bilirubin
19. Laboratory results
S Bilirubin
U
Urobilinogen
U
Bilirubin
F
Urobilinoge
Conjugated Unconjugated
Normal
0.1-0.4mg/
dl
0.2-0.7mg/dl 0.4mg/day Absent 40-280mg/
day
Prehepatic
Normal Increased Increased Absent Increased
Hepatic
Increased Increased N/Decreased Present Decreased
Posthepatic
Increased Normal Absent Present Trace to
absent
22. Liver is the main source of synthesis of
Plasma proteins
- Albumin
- Globulin(except γ)
Blood clotting factors
- Prothrombin and
factors V, VII and X.
Tests b/o synthetic function
25. Tests related to
CARBOHYDRATE
metabolism
Tests related to LIPID
metabolism
Tests related to
PROTEIN metabolism
Tests b/o metabolic function
Galactose tolerance
test Serum cholesterol
Serum proteins
Aminoaciduria
26. • In liver cell injury, damage to the membrane of cells and
organelles allows intracellular enzymes to leak into the blood.
• Where their elevated concentrations can be measured
Enzymes in diagnosis of liver disease
28. Serum transaminases
AST or SGOT=<35U/L
ALT or SGPT=<40U/L
S. alkaline phosphatase
ALP= 3-13KA units/dl
ALP is normally
excreted through bile
↑↑↑In obstructive
jaundice
Enzymes in liver disease