protein-bound iodine test (PBI). Blood test to measure the concentration of thyroxine (T4) circulating in the bloodstream. The iodine becomes bound to theprotein in the blood and can be measured. Useful in extablishing thyroid function.
Gray ranks in the upper quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Louisiana. See peer rankings below. The primary coordinate point for Gray is located at latitude 29.6776 and longitude -90.7833 in Terrebonne Parish. The formal boundaries for the Gray Census Designated Place (see map below) encompass a land area of 11.64 sq. miles and a water area of 0 sq. miles.
Hammond, the commercial hub for Tangipahoa Parish is located near the intersection of interstate highways 55 and 12. Over 20,000 residents of this area enjoy fine restaurants, several modern shopping centers and many beautiful parks for the entire family. Hammond is the home of Southeastern Louisiana University, which is the fastest growing University in the Nation.