Blood Markers Flashcards
ESR
Measures viscosity of serum
Plasma thicker in inflam
Takes a while to resolve
CRP
Made by liver in crisis
Detects cytokines
Useful acutely
Ferritin
Goes up in inflam
Fibrinogen
Goes up in inflam
Albumin
Down in inflam
Low in cirrhosis
C3+C4
Low in inflam as used up
ANA Abs
+ve in SLE, infection and elderly
dsDNA
Raised in SLE (sometimes)
Rheumatoid Factor
Ab against FC portion of IgG
Found in RA and chronic infections
Anti-CCP
Also raised in RA
ANCA
Ab for Wegener’s granulomatosis
Cytoplasmic or perinucleur
MHC
Same as HLA
Class I on nucleated cells
Class II on B cells
Alkaline Phosphotase
Raised in biliary tract damage
Made in liver, bone, intestine and placenta
Elevated in jaundice
ALT+AST
Alanine and aspartate aminotransferase
Released in cellular damage
ALT more liver specific
Elevated in Hep
Bilirubin
Total, unconjugated or conjugated
Made from Hb
Binds to albumin in blood