Category: Blood

Test Details Use Diagnose hypochromic, microcytic anemias. Decreased in iron deficiency anemia and increased in iron overload. Ferritin levels correlate with and are useful in evaluation of total body storage iron. In hemochromatosis, both ferritin and iron saturation are increased. Ferritin levels

Test Details Synonyms Anti-N-DNA Antinative DNA Test Includes Semiquantitative result of IgG class antibodies Use Specific assay for confirming the diagnosis of systemic lupus erythematosus (SLE).

Synonyms HIV-1/O/2, 4th Generation Test Includes Enzyme immunoassay (EIA) for antigen/antibody screen for HIV with reflex to supplementary differentiation assay for HIV-1 or HIV-2. The antigen/antibody assay detects antibodies to HIV-1 and HIV-2 as well as HIV-1 p24 antigen. Specimens positive

Test Details Synonyms 25-Hydroxycalciferol 25-OH-D Cholecalciferol Metabolite Vitamin D3 Metabolite Use Rule out vitamin D deficiency.

Test Details Synonyms Ascorbic Acid C, Vitamin Use Evaluation of vitamin C deficiency. Additional Information Serum levels of vitamin C are an adequate measurement of clinical status. Vitamin C is a cofactor for protocollagen hydroxylase; it promotes the conversion of tropocollagen to collagen

Test Details Synonyms Chickenpox Titers Herpes Zoster Antibodies VZV IgG Use Diagnose VZV infection; determine adult susceptibility to infection. Additional Information Although most cases of varicella or zoster are clinically unambiguous, serology may be occasionally useful in the differential

Test Details Synonyms UA Urate Use Uric acid measurements are useful in the diagnosis and treatment of gout, renal failure, and a variety of other disorders including leukemia, psoriasis, starvation, and other wasting conditions. Patients receiving cytotoxic drugs may be monitored with uric

Test Details Synonyms Third-generation TSH Thyrotropin Use Thyroid function test. Investigation of low thyroxine (T4) result; the differential diagnosis of primary hypothyroidism from normal, and the differential diagnosis of primary hypothyroidism from pituitary/hypothalamic hypothyroidism

Test Details Synonyms Free T3 T3, Free Use Evaluate thyroid function and assess abnormal binding protein disorders.

Test Details Synonyms T3, Total Use Thyroid function which is particularly useful in the diagnosis of T3 thyrotoxicosis, in which T3 is increased and T4 is within normal limits. T3 toxicosis is occasionally found in Graves’ disease. It occurs with a single toxic nodule, multinodular thyrotoxicosis,

Test Details Synonyms Free T4, Direct, Serum Free Thyroxine T4, Free, Direct, Serum Use Free T4 may be indicated when binding globulin (TBG) problems are perceived, or when conventional test results seem inconsistent with clinical observations. It is normal in subjects with high thyroxine-binding

Test Details Synonyms T4, Total Tetraiodothyronine Use Thyroid function test. Decreased in hypothyroidism and in the third stage of (painful) subacute thyroiditis; increased with hyperthyroidism, with subacute thyroiditis in its first stage and with thyrotoxicosis due to Hashimoto disease.3