enzymes Flashcards
enzyme in Bilirubin enzymatic reaction
Bilirubin oxidase
highest elevation of CK >5xULN
Duchenne’s muscular dystrophy
CK tissue sources
BHS
Brain, heart (cardiac ), Skeletal muscle
CK Isoenzyme in severe tissue damage
CK-Mi
major CK isoenzyme in healthy individuals
CK-MM
CK Forward determination
Tanzer-Gilvarg
CK Reverse determination
Oliver-Rosalki
CK: Ref value:
Male: 15-160U/L (37°C)
Female : 15-130 U/L (37°C)
Tissue sources Of LDH
Heart, RBCS, Renal cortex, Lungs, Liver, Skeletal muscle
Normal pattern LDH
LD2>LD1
LDH pattern assoc. w/ AMI, Renal Infarction Hemolysis
LD1>LD2
highest elevation of LDH >5xULN
megaloblastic/pernicious anemia
Cold Labile LDH isoenzyme
LD5 (most) and LD4
ck enzyme labile when stored
ck 1
Forward method LDH determination
Wacker
Reverse LDH determination
Wroblewski-Ladue
Reference value LD
100-225 U/L @ 37°C
ck starts to increase AMI
a 4-6 hrs
b. 6-8 hrs
C. 12-24hrs
4-6 hrs
AMI,ck peaks at
a.48-72hrs
b. 12-24 hrs
c.18-24hrs
12-24 hrs
AMI,ck normalize in
a. 10 days
b. 4-5 days
C. 2-3 days
2-3 days
AMI, AST starts to elevate
a. 4-6 hrs
b.6-8hrs
C. 12-24hrs
6-8 hrs
AMI, AST peaks at
a.48-72hrs
b. 18-24hrs
C. 12-24 hrs
18-24 hrs
AMI, AST normalize in
a. 10 days
b.2-3 days
C. 4-5 days
4-5 days
AMI, LD starts to increase
a. 6-8 hrs
b. 4-6 hrs
C.12-24 hrs
12-24 hrs
AMI, LDH peaks at
a . 18-24 hrs
b. 12-24hrs
C.48-74 hrs
48-74 hrs
AMI, LDH Normalize
a 4-5 days
b. 10 days
C.2-3 days
10 days