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Showing search results for "algorithm" 31-40 of 312

  1. 17-Hydroxyprogesterone Response to ACTH Stimulation

    17-hydroxyprogesterone is elevated in patients with congenital adrenal hyperplasia (CAH). CAH is a group of autosomal recessive diseases characterized by a deficiency of cortisol and an excess of ACTH concentration. 17-…... More

  2. Homocysteine

    An elevated concentration of homocysteine is an independent risk factor for cardiovascular disease. When used in conjunction with methylmalonic acid (MMA), these tests are useful to diagnose and monitor vitamin B12 (…... More

  3. JAK2 V617F Mutation, Quantitative, Plasma-Based, Leumeta

    The JAK2 tyrosine kinase (V617F) was detected in most patients ( 80%) with polycythemia vera (PV), 30-50% of patients with either essential thrombocythemia (ET) or myelofibrosis. The Quantitative measurement of V617F …... More

  4. JAK2 V617F, Qualitative, Leumeta with Reflex to Exons 12,13 and Reflex to MPL W515, S505

    Diagnose Polycythemia Vera (PV), Essential Thrombocythemia (ET), and Idiopathic Myelofibrosis (MF).... More

  5. JAK2 V617F, Qualitative, Leumeta with Reflex to Exons 12,13

    Diagnose Polycythemia Vera (PV), Essential Thrombocythemia (ET), and Idiopathic Myelofibrosis (MF).... More

  6. JAK2 Exons 12 and 13 Mutations, Qualitative, Leumeta

    Myeloproliferative disorders (MPDs) are clonal hematopoietic stem cell malignancies characterized by excessive production of blood cells by hematopoietic precursors. In addition to thrombotic and hemorrhagic …... More

  7. Factor V (Leiden) Mutation Analysis

    Factor V (Leiden) Mutation is a point mutation that causes resistance of Factor V protein degradation by activated protein C (APC). This mutation is associated with increased risk of venous thrombosis.... More

  8. Factor VIII Activity, Chromogenic

    Preferred test in patients with Lupus anticoagulant, on heparin or direct thrombin inhibitors, or on Factor VIII concentrates.... More

  9. Factor VIII Activity, Clotting

    This test is useful to evaluate a prolonged aPTT. The most common form of hemophilia is caused by a deficiency of Factor VIII. Hemophilia A is an X-linked disorder affecting between 1 in 5000 to 10000 males.... More

  10. Factor V HR2 Allele DNA Mutation Analysis

    Factor V HR2 Allele, DNA Mutation Analysis is useful in patients who are carriers of Factor V Mutation (Leiden). Coinheritance of Factor V Mutation (Leiden) is associated with a 3-4-fold increased risk of venous …... More

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.