Estrogen receptor and progesterone receptor testing helps determine how breast cancer grows, which can help doctors understand patient prognosis and plan treatment.
Catecholamines testing may be used in follow up to plasma free metanephrines and/or urine metanephrines testing to help confirm or rule out rare tumors called pheochromocytomas and paragangliomas.
CD4 cells are white blood cells that are a major target of HIV. If you have HIV, CD4 counts are blood tests used to help determine the strength of your immune system and monitor your HIV treatment.
Bone marrow is the sponge-like tissue inside the body's larger bones that produces blood cells. A bone marrow biopsy can help diagnose conditions affecting the blood cells or marrow.
Beta-2 microglobulin (B2M) is a protein in blood that is filtered by the kidneys, Elevated B2M levels in blood and/or urine could indicate decreased kidney function.
BCR-ABL1 testing detects the presence of the BCR-ABL1 gene sequence in an abnormal chromosome 22 to help diagnose chronic myelogenous leukemia and a form of acute lymphoblastic lymphoma.
PML-RARA (promyelocytic leukemia/retinoic acid receptor alpha) is a specific abnormal rearrangement of genetic material from two separate chromosomes (translocation). A PML-RARA test is used to help diagnose acute promyelocytic leukemia (APL).
Learn how a procalcitonin test helps diagnose sepsis and determine whether an infection is bacterial or non-bacterial. Understand when the test is needed, what to expect, and how to interpret results.
