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Test Code NBLOH Neuroblastoma Loss of Heterozygosity

Important Note

Tumor tissue AND a normal sample is required.


Tumor sample collected during or after treatment (e.g. post-chemotherapy) CANNOT be accepted. Pre-treatment relapse tumor samples can be submitted.

Clinical System Name

Neuroblastoma Loss of Heterozygosity


Neuroblastoma LOH

Sample Requirements

Specimen: Whole Blood

Container(s): Lavender/EDTA

Preferred Vol: 4 mL

Minimum Vol:



Specimen: Tumor

Container(s): Sterile Screw-Capped Container

Preferred Vol:

Minimum Vol:



Note: at least 40% tumor must be present in the submitted tumor sample

Processing Instructions

Reject due to:

Spin: N

Aliquot: N

Temp: Refrigerate whole blood and immediately freeze tumor

Storage location: Deliver blood to CPA refrigerator Send Outs rack and deliver Tumor to CPA -70 freezer Send Outs rack.


Off-site collection:


Specimen Type Temperature Time
Whole Blood Room temp 24 h
  Refrigerated 72 h
  Frozen N
Tumor Room Temp N
  Refrigerated N
  Frozen 24 h



STAT Performed TAT
N Monday to Friday 3 wks


Performing Laboratory

Nationwide Children's Hospital


700 Children's Drive

Columbus, OH 43205


Phone Number: (614) 722-5321


Department: Send Outs

Phone Number: (206) 987-2563

Reference Range

Interpretive report is provided



Analytical Volume:


CPT Codes


Send Out Instructions

Reference Test Name: Neuroblastoma Loss of Heterozygosity (LOH)
Reference Test Number: NBLLOH
Instructions: Ship whole blood overnight, ambient temperature. Ship tumor on dry ice.