NPM1 MRD analysis by NGS

Synonyms

Nucleophosmin 1 gene, NPM1_insertions, NPM1 mutation, Minimal Residual Disease, MRD

  • Tech Only CPT
  • Tech Pro CPT 81310
  • PowerPath Code NPM1MRD
  • Schedule Monday and Thursday
  • Turn Around Time 14-21 days
  • Disease State Acute Myeloid Leukemia (AML) / Myeloid Sarcoma
  • Methodology Next Generation Sequencing

Organs

Blood/Bone Marrow

Specimen Requirements

Minimum of 1 mL whole blood in a purple (EDTA) or pink top tube (EDTA); minimum of 1 mL of bone marrow aspirate in a purple, pink, or green (heparin) top tube.

Clinical Significance

The Nucleophosmin (NPM1) gene is one of the commonly mutated genes in acute myeloid leukemia (AML), occurring in about 35% of AML patients at diagnosis and 60% of adult cytogenetically normal AML (CN-AML). The vast majority of NPM1 mutations are insertions in the last exon which is often detected by PCR-fragmentation analysis for a faster turn-around-time (TAT). When the NPM1 insertion becomes negative post-treatment in the follow up specimens, the enhanced NGS analysis designed for NPM1 MRD evaluation could be used to evaluate the minimum residual diseases.

Required Patient Info

Copy of the referring client's requisition form to accompany specimen.

Storage and Transportation

Refrigerated: 5 days; ambient (room temperature): 3 days; specimen must be received by laboratory within 7-days of collection.

Cause for Rejection

Frozen specimen; clotted or grossly hemolyzed specimens; serum; specimens without 2 patient identifiers; serum or plasma, aliquots (previously open containers); specimen that were received >7-days after collection.

Retention

Whole blood and bone marrow - 1 week.

LOINC Code(s)

107241-2

Vendor

LDT