Most commonly, rheumatoid factor is used as a blood test for the diagnosis of rheumatoid arthritis. Rheumatoid factor is present in about 80% of adults (but a much lower proportion of children) with rheumatoid arthritis. In people with rheumatoid arthritis, high levels of rheumatoid factor can indicate a tendency toward more aggressive disease and/or a tendency to develop rheumatoid nodules and/or rheumatoid lung disease.
The City of Opa-locka had a population of 16,683 as of July 1, 2017. Opa-locka ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Florida. See peer rankings below. The primary coordinate point for Opa-locka is located at latitude 25.9 and longitude -80.2552 in Miami-Dade County. The formal boundaries for the City of Opa-locka (see map below) encompass a land area of 4.3 sq. miles and a water area of 0.18 sq. miles.
Zip Code 32703 is located in the state of Florida in the Orlando metro area. Zip code 32703 is primarily located in Orange County. Portions of 32703 are also located in Seminole County. The official US Postal Service name for 32703 is APOPKA, Florida. Portions of zip code 32703 are contained within or border the city limits of Apopka, FL, Forest City, FL, South Apopka, FL, Ocoee, FL, Lockhart, FL, Paradise Heights, FL, Altamonte Springs, FL, Zellwood, FL, and Wekiwa Springs, FL. Zip code 32703 is within area code 407 and area code 321.