In some anemias, such as pernicious anemia, the amount of variation (anisocytosis) in RBC size (along with variation in shape - poikilocytosis) causes an increase in the RDW.   The CBC is used as a broad screening test to check for such disorders as anemia, infection, and many other diseases.
Obtaining a Travel Authorization Number A Travel Authorization Number (T-Number) is required for those employees where a local rule applies and for all non-employee travel. It is needed for all travel involving an overnight stay or the purchase of an air, rail, or bus ticket.
Toll Free Number 1-866-827-5672. Fax: (901) 874-2766 DSN: 882-2766. Benefits and Eligibility Section, determines sponsor and family member eligibility for ID Card authorized military benefits. This includes determining authorization for ID Cards for the Incapacitated Dependent Program (INCAP) for dependents over the age of 21.