Chronic Lymphocytic Leukemia Focused NGS Panel
| Abbrev Code: | CLLBLD | ||
| Order Code: | LAB8067 | Order Name: | Chronic Lymphocytic Leukemia Focused NGS Panel |
| Synonyms: | CLL; NOTCH1; SF3B1; TP53; BTK; ATM; MYD88 | ||
| Methodology: | Next generation sequencing | ||
| CPT Codes: | 81450 x1, G0452 x1 | ||
| Turnaround Time: | Performed Mon-Fri; results are reported within 10-14 days. | ||
Collection Instructions
| Specimen: | Blood, bone marrow |
| Optimal Volume: | 10 mL blood, 3 mL bone marrow |
| Minimum\Peds Volume: | 3 mL blood; 1 mL bone marrow |
| Container: | Yellow (ACD, Solution A) tube available from laboratory Alternate Containers: Purple (EDTA) |
| Collection Instructions: | Bone marrow clot acceptable for testing. |
| Causes for Rejection: | Whole blood: frozen or clotted specimen, incorrect anticoagulant, specimen more than 5 days old. All testing will be cancelled if engraftment testing is 100% donor engrafted in consultation with clinician.
Shared blood or bone marrow samples will not be accepted unless sent to Molecular first. Contamination will occur on automated hematology analyzers. The diagnostic sample requires at least 20% blasts to perform testing. Follow-up samples for the hematology panels will be tested for all positive gene(s) in the diagnostic sample. |
Processing and Shipping
| Specimen Processing: | Do not process. Store at room temperature. |
| Shipping Instructions: | Ship at room temperature. Do not refrigerate or freeze. |
| Stability: | Whole blood samples are stable for 5 days at room temperature. Do not refrigerate or freeze. |
| Test Performed at or Referral Lab | Molecular Diagnostics (UMMC East Bank) |
Interpretive
| Reference Range: | See interpretive report. |
| Use: | Testing is used to diagnose and classify risk of Chronic Lymphocytic Leukemia. Genest tested: ATM, BTK, MYD88, NOTCH1, SF3B1, TP53. Mutations in ATM, NOTCH1, SF3B1 and TP53 are associated with a poor outcome. Different treatment regimens may be considered in patients with TP53 mutations or del(17p). Specific mutations in BTK predict resistance to certain therapies. |
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