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FACTOR II (089-0005), FACTOR VII (089-0009), FACTOR X (089-0011) CPT 4 Code: Factor II-85210; Factor VII-85230; Factor X-85260 Test Order Mnemonic: FACTORII; FACTORVII; FACTORX Applies To: Measures levels of factor/s that can be useful in diagnosing bleeding disorders and liver disease. Lab: Hematopathology Request Form: Hematology A Collection: Routine venipuncture; discard 1st mL of blood or collect other tubes (EDTA, red-topped) prior to collecting sample in blue-topped (citrate) tube. Storage Instructions: Viable for 4 hours at room temperature. If time from draw to receipt in the laboratory is to be greater than 4 hours, centrifuge the specimen; remove the plasma from red cells and snap freeze (-70°C) plasma. Snap frozen plasma is viable indefinitely. Causes for Rejection: 3.85 sodium citrate tube, QNS, clotted, severely hemolyzed specimen, specimen greater than 4 hours old, identification error, sample processed and/or stored improperly. Availability: Samples are accepted 24 hours per day at Sample Management, 5.136 McCullough Bldg. Turnaround Time: STAT: 1 1/2 hours; ROUTINE: 4 hours Special Instructions: Deliver sample to lab within ½ hour for best results. Accepted up to 4 hours from draw. Specimen: Blood Volume: 4.5 mL blood Minimum Volume: call lab Container: 3.2% sodium citrate tube (light blue-top) [NOTE:3.8% sodium citrate tubes will NOT be accepted.] Reference Ranges: 0.5-1.5 units Test Method: Photo-Optical Detection Interfering Substances: oral contraceptives, anticoagulant therapy Revised 10/10/07 by W. Russo, MT(ASCP) |
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