ARUP's Laboratory Test Directory

MLL-AFF1 (MLL-AF4) Translocation, t(4;11) by RT-PCR : 0050446
[ image for: Time Sensitive]
Time Sensitive
  


Mnemonic: MLL-AF4

Methodology: Reverse Transcription Polymerase Chain Reaction
Performed: RNA isolation: Sun-Sat; Assay: Varies
Reported: 3-10 days
Specimen Required: Collect: Lavender (EDTA) or bone marrow (EDTA).

Specimen Preparation: Transport 5 mL whole blood (Min: 1 mL). OR 3 mL bone marrow (Min: 1 mL). Specimens must be received within 48 hours of collection due to lability of RNA.

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: Serum or plasma. Frozen or clotted specimens. Specimens collected in anticoagulants other than EDTA. Severely hemolyzed specimens.

Stability (collection to initiation of testing): Ambient: 1 hour; Refrigerated: 2 days; Frozen: Unacceptable
Interpretive Data: Refer to report.

See Compliance Statement B: www.aruplab.com/CS
CPT Code(s): 81401, G0452