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Gaucher Disease, DNA Mutation Analysis
Test Code2832
Quest Code
90907
Alias/See Also
Quest 90907; Sunquest: GAUC
CPT Codes
81251
Physician Attestation of Informed Consent
This germline genetic test requires physician attestation that patient consent has been received if ordering medical facility is located in AK, DE, FL, GA, IA, MA, MN, NV, NJ, NY, OR, SD or VT or test is performed in MA.
Includes
If amniotic fluid or chorionic villi sampling (CVS) is received, then an additional charge will be added for cell culture work (CPT code(s): 88235) if not already ordered
Preferred Specimen
4 mL whole blood collected in an EDTA (lavender-top) tube
Minimum Volume
3 mL whole blood • 3 mL bone marrow • 10 mL amniotic fluid • 10 mg dissected chorionic villus biopsy
Other Acceptable Specimens
Whole blood collected in: EDTA (royal blue-top) tube, ACD (yellow-top) tube sodium, heparin (green-top) tube, or lithium heparin (green-top) tube • Bone marrow collected in: EDTA (lavender-top) tube
Fetal specimens: 10 mL amniotic fluid collected in a sterile plastic leak-proof container • Amniocyte or chorionic villus (CVS) culture cells collected in each of two sterile T25 flasks • 10 mg dissected chorionic villus (CVS) biopsy collected in a sterile tube filled with sterile culture media
Fetal specimens: 10 mL amniotic fluid collected in a sterile plastic leak-proof container • Amniocyte or chorionic villus (CVS) culture cells collected in each of two sterile T25 flasks • 10 mg dissected chorionic villus (CVS) biopsy collected in a sterile tube filled with sterile culture media
Instructions
Do not hold specimen; forward to laboratory when specimen arrives.
Whole blood: Specimen stability is crucial. Store and ship at room temperature immediately. Do not freeze.
For fetal testing:
1) Please call 1-866-GENE-INFO (1-866-436-3463) prior to submission
2) Documentation of parental carrier status must be provided
3) It is required that Maternal Cell Contamination Study, STR Analysis be ordered in conjunction with fetal testing. A separate tube of maternal blood (EDTA) is required for this test.
Amniotic fluid: Normal collection procedure. Specimen stability is crucial. Store and ship at room temperature immediately. Do not refrigerate or freeze; forward to laboratory when sample arrives.
Amniocyte or chorionic villus (CVS) culture: Two sterile T25 flasks, 75% confluent, filled with culture medium. Specimen stability is crucial. Store and ship at room temperature immediately. Do not refrigerate or freeze; forward to laboratory when sample arrives.
Dissected chorionic villus (CVS) biopsy: 10-20 mg dissected chorionic villi collected in a sterile tube, filled with sterile culture media. Specimen stability is crucial. Store and ship at room temperature immediately. Do not refrigerate or freeze; forward to laboratory when sample arrives.
Note: Do not reject. Forward to performing laboratory for evaluation of sample.
Whole blood: Specimen stability is crucial. Store and ship at room temperature immediately. Do not freeze.
For fetal testing:
1) Please call 1-866-GENE-INFO (1-866-436-3463) prior to submission
2) Documentation of parental carrier status must be provided
3) It is required that Maternal Cell Contamination Study, STR Analysis be ordered in conjunction with fetal testing. A separate tube of maternal blood (EDTA) is required for this test.
Amniotic fluid: Normal collection procedure. Specimen stability is crucial. Store and ship at room temperature immediately. Do not refrigerate or freeze; forward to laboratory when sample arrives.
Amniocyte or chorionic villus (CVS) culture: Two sterile T25 flasks, 75% confluent, filled with culture medium. Specimen stability is crucial. Store and ship at room temperature immediately. Do not refrigerate or freeze; forward to laboratory when sample arrives.
Dissected chorionic villus (CVS) biopsy: 10-20 mg dissected chorionic villi collected in a sterile tube, filled with sterile culture media. Specimen stability is crucial. Store and ship at room temperature immediately. Do not refrigerate or freeze; forward to laboratory when sample arrives.
Note: Do not reject. Forward to performing laboratory for evaluation of sample.
Transport Container
EDTA (lavender-top) tube
Transport Temperature
Room temperature
Specimen Stability
Whole blood and bone marrow
Room temperature: 8 days
Refrigerated: 8 days
Frozen: Unacceptable
Fetal specimens
Room temperature: 48 hours
Refrigerated: Unacceptable
Frozen: Unacceptable
Room temperature: 8 days
Refrigerated: 8 days
Frozen: Unacceptable
Fetal specimens
Room temperature: 48 hours
Refrigerated: Unacceptable
Frozen: Unacceptable
Methodology
Polymerase Chain Reaction (PCR) • Next Generation Sequencing
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Mon, Sat
Report Available
10-16 days
Reference Range
See Laboratory Report
Clinical Significance
Gaucher Disease is an autosomal recessive lysosomal storage disease that leads to the accumulation of glucocerebroside in tissues. Approximately 1 in 10 individuals of Ashkenazi Jewish heritage is a carrier. Treatment is available that averts severe morbidity and mortality.
Performing Laboratory
| Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
| 33608 Ortega Highway |
| San Juan Capistrano, CA 92675-2042 |
