|Normal value: ||< 5.0 ng/mL (smoker).|
|< 2.5 ng/mL (nonsmoker).|
|Comment: ||Elevation of CEA in colorectal cancer, but also in a variety of
noncolonic cancers (eg, pancreatic, gastric, lung, breast), as well
as in benign conditions (eg, IBD, liver cirrhosis, chronic lung disease, pancreatitis).
CEA > 20 highly suspicious for metastatic disease. After curative cancer resection, normalization
of elevated values expected within 1–2 months.|
Antineutrophilic Cytoplasmic Antibody (pANCA)
Anti-Saccharomyces Cerevisiae Antibody
|Normal value: ||500–1500 cells/μL.|
|Comment: ||HIV infection → assessment of
activity and treatment response with CD4 cell counts and viral load.
Critical: < 200 cells/μL.|
|Normal value: ||No viral load detectable with appropriate HAART.|
|Comment: ||> 100,000 copies/mL → sign
of drug resistance or disease progression.|
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