- No FAQs found
- ABL Kinase Domain Mutation in CML, Cell-based
- ABO Group and Rh Type
- Acid-Fast Bacillus (AFB) Identification, Sequencing and Stain, Paraffin Block
- ADAMTS13 Activity with Reflex to ADAMTS13 Inhibitor
- Alcohol Metabolites, Quantitative, Urine
- Alpha-Globin Common Mutation Analysis
- Alpha-Globin Gene Deletion or Duplication
- Alpha-Globin Gene Sequencing
- Anti-Müllerian Hormone AssessR™
- Anti-PF4 and Serotonin Release Assay (SRA) for Diagnosing Heparin-induced Thrombocytopenia/Thrombosis (HIT/HITT)
- Antiphospholipid Antibodies
- ASCVD Risk Panel with Score
- Autoimmune Epilepsy Evaluation
- Autoimmune Diseases, Tests for
- Bordetella pertussis toxin (PT) antibody
- B-cell and T-cell Clonality Assays by PCR
- B-Type Natriuretic Peptide (BNP)
- BCR-ABL1 Gene Rearrangement, Quantitative PCR
- Beta-Globin Complete
- Biotin: Interference with Laboratory Assays
- BRCA Panel Plus
- BRCAvantage®, Ashkenazi Jewish Screen
- BRCAvantage®, Rearrangements
- BRCAvantage™, Comprehensive
- BRCAvantage™, Single Site
- CDH1 Sequencing and Deletion/Duplication
- Clostridium difficile Diagnostic Testing
- C1 Inhibitor, Protein and Functional Tests
- Calreticulin (CALR) Mutation Analysis
- Carbapenem Resistant Enterobacteriaceae Culture Screen
- Cardio IQ Lipoprotein Fractionation, Ion Mobility
- CardioIQ® Insulin Resistance Panel with Score
- Cervical Cancer, TERC, FISH
- CFvantage® Cystic Fibrosis Expanded Screen
- Chlamydia trachomatis, TMA
- Chlamydia trachomatis/Neisseria gonorrhoeae RNA, TMA
- Chromosomal Microarray, POC, ClariSure®, Oligo-SNP
- Chromosomal Microarray, Postnatal, ClariSure® Oligo-SNP
- Chromosomal Microarray, Prenatal, ClariSure® Oligo-SNP
- Chromosome Analysis and AFP with Reflex to AChE, Fetal Hgb, Amniotic Fluid
- Chromosome Analysis, Amniotic Fluid
- Chromosome Analysis, Blood
- Chromosome Analysis, Blood with Reflex to Postnatal, ClariSure® Oligo-SNP Array
- Chromosome Analysis, Chorionic Villus Sample
- Chromosome Analysis, High Resolution
- Chromosome Analysis, High Resolution with Reflex to Postnatal, ClariSure® Oligo-SNP Array
- Chromosome Analysis, Mosaicism
- Chromosome Analysis, Neonatal Blood
- Chromosome Analysis, Sister Chromatid Exchange
- Chromosome Analysis, Tissue
- Chromosome DEB Assay for Fanconi anemia
- Chronic Lymphocytic Leukemia (CLL) - Diagnostic and Prognostic Testing
- Comprehensive Hereditary Cancer Panel
- Culture, Fungus
- Culture, Urine, Routine
- Cystic Fibrosis Screen
- Cytomegalovirus (CMV) and Epstein Barr Virus (EBV) PCR
- Cytomegalovirus (CMV) IgG avidity
- D-Dimer, Quantitative
- Dementia, Secondary Causes
- Dengue Virus Testing
- Diagnosis of Intestinal Parasites
- Donor Testing
- Drug Monitoring, Antidepressants, With Confirmation, Urine and Serum
- Drug Testing, General Toxicology (Blood, Urine, or Serum)
- Drug Toxicology Alcohol Metabolite, with Confirmation, Oral Fluid
- Drug Toxicology Monitoring, Oral Fluid Testing
- FLT3 Mutation Analysis
- Factor V (Leiden) Mutation Analysis
- Factor VIII Activity, Clotting
- Familial Hypercholesterolemia (FH) Panel
- Familial Hypercholesterolemia (FH) Single Site
- Familial Mediterranean Fever Mutation Analysis
- First Trimester Screen, hCG
- First Trimester Screen, Hyperglycosylated hCG (h-hCG)
- FISH, Angelman
- FISH, MET Amplification
- FISH, Myeloma, 17p-, rea 14q32 with Reflexes
- FISH, Prader-Willi
- FISH, Prenatal Screen
- Helicobacter pylori (H pylori) Antibody Discontinuation
- Heparin, Anti-Xa
- Hepatitis B Surface Antibody, Quantitative
- Hepatitis B Surface Antigen, Quantitative, Monitoring
- Hepatitis C Antibody with Reflex to HCV RNA, PCR with Reflex to Genotype
- Hepatitis C Viral RNA Genotype 1 NS5A Drug-resistance
- Hepatitis C Viral RNA Genotype 3 NS5A Drug Resistance
- Hepatitis C Viral RNA NS3 Drug Resistance
- Hepatitis C Viral RNA, Genotype, LiPA
- Hepatitis C Virus Antibody and RNA Testing
- Hereditary Breast Cancer Panel
- Hereditary Cancer Panels: MYvantageTM Hereditary Comprehensive Cancer Panel and GIvantageTM Hereditary Colorectal Cancer Panel
- Hereditary Colorectal Cancer Panel
- Hereditary Endocrine Cancer Panel
- Hereditary Hemochromatosis DNA Mutation Analysis
- Herpes Simplex Virus (HSV) Type-Specific IgG Antibodies
- Herpes Simplex Virus Type 2 (HSV-2) IgG Inhibition, ELISA
- HIV Pre-exposure Prophylaxis (PrEP) Testing
- HIV-1 Coreceptor Tropism, Proviral DNA
- HIV-1 Coreceptor Tropism, Ultradeep Sequencing
- HIV-1 Integrase Genotype
- HIV-1 Resistance, Proviral DNA (RTI, PI, Integrase Inhibitors)
- HIV-1/2 Antigen and Antibodies, Fourth Generation, with Reflexes
- HPV mRNA E6/E7
- Infliximab and Adalimumab Drug and Anti-drug Antibody Testing
- Influenza A and B Antigen, Immunoassay
- Influenza Type A and B Antibodies
- Insulin, Intact, LC/MS/MS
- Integrated Screen, Part 1
- Integrated Screen, Part 2
- Intrinsic Factor Blocking Antibody
- No FAQs found
- No FAQs found
- LDL Cholesterol Calculations
- LeukoVantage® Myeloid Neoplasm Mutation Panels
- Lupus Anticoagulant (LA) Evaluation with Reflex
- Lyme Disease Testing
- Maternal Serum AFP
- Melanoma, BRAF V600E and V600K Mutation Analysis, THxID®
- Metanephrines, Fractionated, Free, LC/MS/MS, Plasma
- Methylenetetrahydrofolate Reductase (MTHFR), DNA Analysis
- Microalbumin (Urinary Albumin Excretion)
- Myeloproliferative Neoplasm Diagnosis: Molecular Evaluation
- No FAQs found
- Pain Management and CYP2D6/CYP2C19
- Pain Management Antipsychotics, With Confirmation, Serum and Urine
- Pain Management, Naltrexone, Quantitative, Urine
- Partial Thromboplastin Time, Activated (aPTT)
- Penta Screen
- Pharmacogenomics Panel
- PIK3CA Mutation Analysis
- Platelet Antibody Screen (Indirect)
- PNH with FLAER (High Sensitivity)
- Porphyria Testing
- Prothrombin Time with INR
- PTH, Intact and Calcium
- Streptococcus pneumoniae (Pneumococcal) Antibody Tests
- Saccharomyces cerevisiae Antibodies (ASCA) (IgG, IgA)
- SARS-CoV-2 Serology (COVID-19) Antibody (IgG), Qualitative (39504); SARS-CoV-2 Antibody (IgG), Nucleocapsid, Qualitative (39749); SARS-CoV-2 Serology (COVID-19) Antibodies (IgG, IgM), Qualitative (31672); SARS-CoV-2 Antibody (IgG), Spike, Semiquantitative
- Sequential Integrated Screen, Part 1
- Sequential Integrated Screen, Part 2
- Serum Integrated Screen, Part 1
- Serum Integrated Screen, Part 2
- Serum Pregnancy Tests
- Sickle Cell Screen
- Stepwise, Part 1
- Stepwise, Part 2
- SureSwab® Trichomonas vaginalis RNA, Qualitative TMA
- SureSwab®, Candidiasis, PCR
- TP53 Sequencing and Deletion/Duplication
- T4, Free
- Tamoxifen and Metabolites, LC-MS/MS
- Testosterone Testing
- Total Testosterone, LC/MS/MS
- Triple Screen
- Tuberous Sclerosis Complex Panel (TSC1, TSC2)
- No FAQs found
- No FAQs found
- No FAQs found
Hereditary Colorectal Cancer PanelTest code(s) 38631
Question 1. What is the clinical application of this test?
This test is used to identify individuals with a hereditary predisposition to colon cancer. It is most useful for individuals with a personal or family history of colon cancer that does not clearly point to a specific cancer syndrome. This multigene panel can also identify individuals with a hereditary cancer predisposition when the clinical suspicion remains high despite a negative result on a single-gene/syndrome genetic test.
Question 2. What genes are included in this panel?
This panel analyzes 19 genes: APC, AXIN2, BMPR1A, CDH1, EPCAM, GREM1, MLH1, MSH2, MSH3, MSH6, MUTYH, NTHL1, PMS2, POLD1, POLE, PTEN, SMAD4, STK11, and TP53.
Sample reports and information regarding the specific variants analyzed for each gene are available on our website QuestHereditaryCancer.com.
Question 3. What are the clinical indications for this testing?
Generally, this test may be indicated for individuals with
A personal history of colon cancer or other cancers of the gastrointestinal system who have tested negative for a single gene or syndrome, but whose personal or family history remains strongly suggestive of an inherited susceptibility1; or
A personal and/or family history of colon cancer or other cancers of the gastrointestinal system that do not seem to fit a particular hereditary cancer syndrome1
Informed consent following genetic counseling is strongly recommended before testing. Whenever possible, consider testing the person in the family with the youngest diagnosis related to genetic testing.
Question 4. What conditions are associated with the genes included in this panel?
The Hereditary Colorectal Cancer Panel includes 19 genes associated primarily with gastrointestinal cancers. This can include, but is not limited to, cancers of the colon, endometrium, ovary, pancreas, prostate, rectum, stomach, and urinary tract. Most genes have National Comprehensive Cancer Network (NCCN®) management recommendations for one or more cancer sites (NCCN.org).
Question 5. The gene mutation in this individual’s family is known. What other test might be appropriate?
If a familial mutation has been detected by sequencing or deletion/duplication studies, the Hereditary Cancer Single Site(s) (test code 93945) may be considered. Official test results of the family member must be available for laboratory review. For more information, please visit our website QuestHereditaryCancer.com. To discuss a family history with a Quest genetic counselor, please call Quest Genomics Client Services at 1.866.GENE.INFO (1.866.436.3463).
Question 6. Whom can I ask for help regarding a specific case?
For more information or to discuss a family history with a Quest genetic counselor, please call
Quest Genomics Client Services at 1.866.GENE.INFO (1.866.436.3463).
Question 7. When is the right time to pursue this test?
The right time is different for every individual. An individual’s current medical status, treatment or screening plan, personal experience with cancer, and general readiness for genetic information all influence the decision to be tested. Having an open dialogue with individuals about these topics can assist with shared decision-making.
Question 8. How do I know if insurance will cover this testing?
Upon receipt of a fully completed order, our team will verify coverage with your patient’s healthcare insurance plan and estimate their likely out-of-pocket responsibility. If your patient’s estimated responsibility is over $100, we will notify you and/or your patient prior to test initiation to discuss options for continuation or cancellation of the test. Please note that orders lacking complete information will not be processed.
Question 9. How quickly can I expect results?
On average, results will be completed 14 to 21 days after receipt of the sample in the laboratory if the family history form and order are complete, and the health plan does not require preauthorization. Turnaround time may vary based on delays caused by incomplete orders or insurance authorizations.
Question 10. What does a positive result mean?
Individuals with a positive result have a pathogenic or likely pathogenic variant(s) detected in one or more of the genes included in this panel. A positive result does not mean that an individual has cancer. Specific risk information will be provided in the result report, and you can visit our website at QuestHereditaryCancer.com for more information.
The NCCN provides up-to-date surveillance and management recommendations (NCCN.org) for individuals with a positive result.
Question 11. What does a negative result mean?
A negative result means that a pathogenic or likely pathogenic variant was not detected in any of the genes included in this panel. Implications of this result depend on the situation:
Individual with previously diagnosed cancer: An individual’s risk of recurrence or a related new cancer is based on his/her personal and family histories of cancer. In some instances, it may be appropriate to test for other hereditary forms of cancer. Please call Quest Genomics Client Services at 1.866.GENE.INFO (1.866.436.3463) to discuss possible additional studies with a genetic counselor.
Individual without previously diagnosed cancer but with a family history of cancer: An individual’s risk of cancer is based on his/her personal and family histories. Testing an affected family member may further inform this risk assessment. In some instances, it may be appropriate to test for other hereditary forms of cancer. Please call Quest Genomics Client Services at 1.866.GENE.INFO (1.866.436.3463)to discuss possible additional studies with a genetic counselor.
Question 12. What does a variant of uncertain clinical significance (VUS) result mean?
A VUS result means that the variant has not been previously described in the literature or that the clinical significance is unclear based upon currently available evidence. Medical management decisions should be based on personal and family history. Family studies may help to learn more about the clinical significance of this variant. The classification and interpretation of the variant(s) identified reflect the current state of Quest’s understanding at the time of this report. Variant classification and interpretation are subject to professional judgment, and may change for a variety of reasons including, but not limited to, updates in classification guidelines and availability of additional scientific and clinical information. It is important to check in with the laboratory annually for variant updates because new information regarding the variant and classification may become available over time. Please visit QuestDiagnostics.com/VariantIQ for information about variant classification. If you have questions, please call Quest Genomics Client Services at 1.866.GENE.INFO (1.866.436.3463) to speak with a genetic counselor.
- National Comprehensive Cancer Network. NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®). Genetic/familial high-risk assessment: colorectal. Version 3.2019. Published December 19, 2019. https://www.nccn.org