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Tests
A blood test done near the end of the first trimester of pregnancy to screen for common chromosomal defects. This test screens for blood levels of both free beta-human chorionic gonadotrophin (beta-hCG) and pregnancy-associated plasma protein A (PAPP-A) and can detect trisomies of chromosomes 21 (Down's syndrome), chromosome 18 (Edward's syndrome), and chromosome 13 (Patau's syndrome).
Tests
The determination of the amount of anti-double stranded DNA IgG antibodies present in a sample.
Tests
The determination of the amount of anti-double stranded DNA present in a sample.
Tests
The determination of the amount of double negative B-lymphocytes present in a sample.
Tests
The determination of a sub-population of double negative B-lymphocytes to B-lymphocytes in a biological specimen
Tests
The determination of the ratio of double negative B-lymphocytes to B-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the amount of double-negative myeloid dendritic cells (any myeloid dendritic cell that is both CD1c-CD141-) present in a sample.
Tests
The determination of the number of double-negative myeloid-derived suppressor cells (any MDSC that is both CD14- and CD15-) present in a sample.
Tests
The determination of the ratio of a sub-population of double-negative myeloid-derived suppressor cells to all double-negative myeloid-derived suppressor cells present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the ratio of the double negative myeloid-derived suppressor cells to all myeloid-derived suppressor cells present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the number of a sub-population of double-negative myeloid-derived suppressor cells present in a sample.
Tests
The determination of the number of sub-population of double-negative T-lymphocytes (negative for both CD4 and CD8) in a sample.
