Specimens should not be collected on the day before, the day of, or the observed day of a US national holiday. Contact Mayo Clinic Central Laboratory for specific instructions if specimens must be collected on the day before, or the observed day of, a US national holiday.

Transportation services are frequently not available and results may be compromised by delayed arrival. Call your designated courier to determine service availability.

Please note the following national holidays:

2008 Holidays:

January 1 January 21 February 18 May 26 July 4 September 1 October 13 November 11 November 27 December 25

New Year's Day Martin Luther King Day President's Day Memorial Day Independence Day Labor Day Columbus Day Veteran's Day Thanksgiving Christmas