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.
You can order your travel money over the telephone, 0845 300 1279 or in your local branch. The exchange rate board contains indication rates only. These rates exclude any commission or other associated charges which may apply. Please ask your branch for details of exchange rates at the time of making the transaction.