Sodium fluoride/potassium oxalate is the type of tube should be used to collect blood specimens during a glucose tolerance test.
Sodium fluoride, an inorganic substance, having the chemical formula NaF. It is used in trace amounts in toothpaste, metallurgy, flux, and the fluoridation of drinking water in addition to being used in insecticides and rat poison.
It is a material that quickly dissolves in water and is either white or colorless. Sodium fluoride is another type of fluoride that is present in several toothpastes and other dental care products.
Thus, Sodium fluoride/potassium oxalate is the type of tube.
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