Test Directory

Test Code
5290
Test Name
Diamond-Blackfan Anemia NGS Panel
CPT Codes
81479
Expected Turnaround Time
Typically 2 to 4 weeks from receipt of a sample in the laboratory. All cases involving ongoing pregnancies will be expedited.
Clinical Utility
Genetic analysis to provide a molecular diagnosis of this disorder. Recommended for individuals with a personal and/or family history of this disorder to ensure appropriate treatment and establish recurrence risk for family members.
Specimen and Container Info

Non-Prenatal Specimens

Preferred/Alternate

Specimen Type

Containers

Volume

Preferred Specimen Type

Whole Blood

Lavender Top (EDTA)

3 mL

Alternate Specimen Type

Genomic DNA

1.5 mL Tube

3 µg (at a concentration of at least 30 ng/µl), preferably in TE solution.

Alternate Specimen Type

Fibroblasts

T-25 Flasks

2 confluent T-25 flasks, filled to capacity

Alternate Specimen Type

Saliva (Whole blood is recommended for CNV)

DNA Self-Collection Kit or Oragene Saliva Collection Kit for Young Children

Follow kit instructions (www.dnagenotek.com)

Prenatal Specimens

Either specimen type below is acceptable.

Specimen Type

Containers

Volume

Cultured cells

T-25 Flasks

2 confluent T-25 flasks derived from amnio or CVS samples.

Genomic DNA

1.5 mL Tube

3 µg (at a concentration of at least 30 ng/µl), preferably in TE solution.

NOTE: For specimens from outside of North America, the preferred specimen type is Genomic DNA. HNL Genomics does not recommend shipping whole blood or cultured cells from any location other than the United States, Canada, or Mexico.

Transport Instructions
  • Transport at room temperature within 24 hours.
  • If the specimen cannot be transported to the lab within 24 hours, refrigerate for up to 72 hours.
  • Do not freeze or expose to extreme temperatures, refrigerate for up to 72 hours if cannot be transported to lab within 24 hours. 
Stability Requirements

Room Temperature

24 hours

Refrigerated

72 hours

Causes for Rejection
  • Improperly labeled specimen (minimum of two patient identifiers)
  • Inappropriate specimen type
  • Incomplete or incorrect test request form
  • Insufficient volume
  • Specimen has leaked in transit
  • Specimen without a test order
Methodology
Next Generation Sequencing and Copy Number Variation Analysis
Performing Location
Genomics - Snowdrift
Alternate Names
DBA
Description

Diamond-Blackfan anemia (DBA) is an inherited bone marrow failure syndrome characterized by a normochromic macrocytic anemia, reticulocytopenia, and a normal marrow cellularity with a lack or absent of erythroid precursors. Most DBA patients develop hematologic complications during the first year of life. Approximately half of the patients have other findings including growth retardation, craniofacial, upper-limb, heart, and urogenital malformations. DBA is also associated with an increased risk for malignancies such as acute myelogenous leukemia, myelodysplastic syndrome, and osteogenic sarcoma.

The Diamond-Blackfan anemia NGS panel consists of eighteen genes: GATA1, RPL11, RPL15, RPL26, RPL27, RPL31, RPL35A, RPL5, RPS10, RPS17, RPS19, RPS24, RPS26, RPS27, RPS28, RPS29, RPS7 and TSR2.

Gene

Disorder

MIM

Inheritance

GATA1

Diamond-Blackfan anemia, GATA1 related

-

XL

RPL11

Diamond-Blackfan anemia 7 (DBA7)

612562

AD

RPL15

Diamond-Blackfan anemia 12 (DBA12)

615550

AD

RPL26

Diamond-Blackfan anemia 11 (DBA11)

614900

AD

RPL27

Diamond-Blackfan anemia, RPL27 related

-

AD

RPL31

Diamond-Blackfan anemia, RPL31 related

-

AD

RPL35A

Diamond-Blackfan anemia 5 (DBA5)

612528

AD

RPL5

Diamond-Blackfan anemia 6 (DBA6)

612561

AD

RPS10

Diamond-Blackfan anemia 9 (DBA9)

613308

AD

RPS17

Diamond-Blackfan anemia 4 (DBA4)

612527

AD

RPS19

Diamond-Blackfan anemia 1 (DBA1)

105650

AD

RPS24

Diamond-Blackfan anemia 3 (DBA3)

610629

AD

RPS26

Diamond-Blackfan anemia 10 (DBA10)

613309

AD

RPS27

Diamond-Blackfan anemia, RPS27 related

-

AD

RPS28

Diamond-Blackfan anemia, RPS28 related

-

AD

RPS29

Diamond-Blackfan anemia 13 (DBA13)

615909

AD

RPS7

Diamond-Blackfan anemia 8 (DBA8)

612563

AD

TSR2

Diamond-Blackfan anemia 14 with mandibulofacial dysostosis (DBA14)

300946

XLR

Testing Schedule
Monday-Friday
Genes
GATA1, RPL11, RPL15, RPL26, RPL27, RPL31, RPL35A, RPL5, RPS10, RPS17, RPS19, RPS24, RPS26, RPS27, RPS28, RPS29, RPS7, TSR2
Disease Group
Hematological