Normal values range from 0.4 - 4.0 milli-international units per liter (mIU/L). Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or test different samples. Talk to your doctor about the meaning of your specific test results.
The primary system also allows for absentee or early voting, while caucuses do not. The term covers a few different kinds of elections, though they all have ballots. While caucuses tend to be split between open and closed, there are several different kinds of primaries.
Voters in the presidential contests may not realize they are not directly voting for a candidate. The primaries and caucuses are a process of selecting delegates or representatives of party members in each state to send to their party's national presidential nominating convention held in the summer.