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Tests
The determination of the ratio of a sub-population of gut-homing helper terminal memory T-lymphocytes to total helper T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the ratio of a sub-population of gut-homing mucosal-associated invariant T-lymphocytes to total gut-homing mucosal-associated invariant T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the ratio of gut-homing mucosal-associated invariant T-lymphocytes to total mucosal-associated invariant T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the ratio of the gut-homing natural killer cells to total natural killer cells present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the ratio of gut-homing natural killer T-lymphocytes to natural killer T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the ratio of a sub-population of gut-homing helper peripheral T-lymphocytes to total helper peripheral T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the gut-homing helper memory T-lymphocytes present in a sample.
Indicators
The term "vitamin K" refers to a group of chemically similar fat-soluble compounds called naphthoquinones: vitamin K1 (phytonadione) is found in plants and is the primary source of vitamin K for humans through dietary consumption, vitamin K2 compounds (menaquinones) are made by bacteria in the human gut, and vitamin K3 (menadione) is a water-soluble preparation available for adults only. Vitamin K is necessary for the liver to produce the coagulation factors II, VII, IX, and X, as well as the clotting factors protein C, protein S, and protein Z; vitamin K deficiency can result in deficiencies of these coagulation factors and excess bleeding. An injection of vitamin K is routinely given to newborn infants to prevent vitamin K deficiency bleeding, also known as hemorrhagic disease of the newborn. Vitamin K deficiency is rare in adults but may result from chronic malnutrition or an inability to absorb dietary vitamins.
