Complement, C3 (serum)
| Units |
Nonpregnant Adult |
First Trimester |
Second Trimester |
Third Trimester |
|
mg/dL |
83 - 177 |
44 - 116 |
58 - 118 |
60 - 126 |
|
g/L |
0.83 - 1.77 |
0.44 - 1.16 |
0.58 - 1.18 |
0.6 - 1.26 |
Some causes of decreased C3
include systemic lupus erythematosus, lupus nephritis, acute poststreptococcal GN, hereditary
deficiency, infancy, massive tissue injury sepsis, and viremia.
Some causes of increased C3
include biliary obstruction, nephrotic syndrome, corticosteroid therapy , and
inflammation.
References:
1. Lockitch G. Handbook of Diagnostic Biochemistry and
Hematology in Normal Pregnancy. Boca Raton:CRC, 1993.
2.
Abbassi-Ghanavati M, Greer LG, Cunningham FG. Pregnancy and laboratory
studies: a reference table for clinicians. Obstet Gynecol. 2009
Dec;114(6):1326-31. PMID:19935037
3.
Wallach, J. Interpretation
of Diagnostic Tests, Eighth ed. Lippincott Williams & Wilkins, 2007
|
