Testosterone is a hormone that is produced by both males and females which acts as a chemical messenger throughout the body. Testosterone is produced in the adrenal glands while also being produced at a higher level in the testes of males and in the ovaries of females. Testosterone is an important chemical messenger for a …
Glycated or glycosylated hemoglobin is an assay performed in order to diagnose and monitor treatment for type one and type two diabetes. Most commonly referred to as hemoglobin A1c, this assay was initially isolated from other types of hemoglobin in 1958 via the use of a chromatographic column. However, the correlation between diabetes mellitus and …
Hepatitis C is a liver disease caused by the hepatitis C virus (HCV). It is spread through exposure to blood, often as a result of injection use. Per CDC, the cases of hepatitis C are increasing dramatically in the United States, particularly among younger adults. In fact, younger adults 20-39 years old have the …
The TSH assay is an in vitro test used for the quantitative determination of TSH in human serum and plasma. The anterior pituitary gland produces Thyroid Stimulating Hormone (TSH). Thyrotropin releasing hormone, which is produced by the hypothalamus, controls the production of TSH. TSH is also regulated by the Free T4, thyroxine, and T3, triiodothyronine, …
The Vitamin B12 assay is an in vitro test used for the quantitative determination of Vitamin B12 in human serum and plasma. Vitamin B12 is necessary for DNA synthesis, cellular energy production, and red blood cell production. Vitamin B12 deficiency was introduced in 1849 and was originally thought to be fatal. This changed in 1926 …
The prothrombin time (PT) is the most commonly used anticoagulant test and was first introduced into use by Dr. Armand Quick and colleagues in 1935.1 The PT is used to evaluate the tissue factor (TF) and common coagulation pathway thus affecting the activity of the coagulation factors II (FII, V (FV), VII (FVII), X (FX), …
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