Compatibility tests by crossmatch - all tests performed on any 1 day in excess of 6 units, including: (a) direct testing of donor red cells from each unit against serum of the patient by one or more accepted crossmatching techniques; and (b) all grouping checks of the patient and donor; and (c) examination for antibodies, and if necessary identification of any antibodies detected; and (d) (if performed) any tests described in item 65060, 65070, 65090, 65096, 65099 or 65105 (Item is subject to rule 5)