Which of the following best denotes classical complement pathway activation in immuno inflammatory condition:
Answer is A (C2, C4 and C3 decreased): The final outcome of both the pathways is formation of membrane attack complex , which causes lysis of cells.
C2, C4 and C3 decreased
C2 and C4 normal, C3 is decreased
C3 normal and C2, C4 decreased
C2, C4, C3 all are elevated
C2, C4 and C3 decreased