NGS Lab Setup and Consulting Services
Next-generation sequencing (NGS) lets a clinical laboratory test many genes, or whole exomes and genomes, in a single run. It is also one of the most demanding services a lab can launch: the wet-lab workflow is contamination-sensitive, the tests are almost always high complexity under CLIA, most clinical NGS assays are laboratory-developed or modified tests that need full validation, and the bioinformatics pipeline is part of the test system. Sound Lab Consultants (SLC) provides NGS lab setup and consulting services for hospitals, reference labs, oncology practices and startups building clinical sequencing.
SLC is an independent, nationwide clinical laboratory consulting network. We are not affiliated with, authorized by or endorsed by any sequencing platform maker, kit supplier or accrediting organization.
Who needs NGS lab consulting
Labs adding germline, somatic oncology, infectious disease or pharmacogenomic sequencing; molecular labs moving from PCR or Sanger to NGS; startups taking a research assay into clinical use; and accredited labs preparing for a first CAP inspection of an NGS service.
Pre- and post-amplification zoning and unidirectional workflow
Amplified DNA is the biggest contamination threat in any molecular lab. Design separate areas for reagent preparation, specimen and nucleic acid extraction, pre-amplification library setup, and post-amplification work such as library amplification, quantification, pooling and sequencing. Work moves one way, from clean to dirty. Staff do not carry materials, lab coats or equipment back from post- to pre-amplification areas without decontamination. Dedicated pipettes, centrifuges, PPE and consumables belong to each zone. See our NGS lab design and layout guide.
Contamination control
Combine physical separation with procedural controls: dedicated equipment, routine surface decontamination with validated agents such as dilute bleach followed by water or ethanol, UV in hoods where appropriate, filtered tips, and no-template controls in each batch. Monitor for index hopping and cross-sample contamination using unique dual indexes and sample identity checks where your assay supports them.
Instrument selection
Major clinical sequencing platforms come from Illumina, Thermo Fisher Scientific (Ion Torrent), PacBio, Oxford Nanopore Technologies and MGI. Choose on read length and accuracy needs, throughput per run and per year, cost per sample at your volume, run time, regulatory status of any IVD-labeled systems or assays, footprint and service coverage. SLC helps labs evaluate and set up instruments from these makers; we have no commercial relationship with any of them.
Short-read sequencers for panels, exomes and many genomes
Long-read platforms for structural variants, repeat expansions and phasing
Benchtop versus production-scale throughput
Library prep automation and liquid handlers
CLIA high complexity
Laboratory-developed tests and modified FDA-cleared tests are high complexity under CLIA, and most clinical NGS falls here. That means a Certificate of Compliance or Certificate of Accreditation, a laboratory director qualified for high-complexity testing, a technical supervisor, general supervisor, clinical consultant and qualified testing personnel under Subpart M.
NGS validation (LDTs)
For tests the lab develops or modifies, 42 CFR 493.1253(b)(2) requires establishing performance specifications: accuracy, precision, analytical sensitivity (limit of detection), analytical specificity including interfering substances, reportable range, reference intervals where applicable, and any other characteristic required for test performance. For NGS this is typically done by variant type (SNVs, indels, CNVs, structural variants, fusions) and by region. The bioinformatics pipeline must be validated as part of the test. Details: NGS assay validation under CLIA.
CAP molecular pathology checklist and NGS requirements
CAP-accredited labs are inspected against the Molecular Pathology checklist, which includes dedicated NGS requirements covering the analytic wet bench process, bioinformatics pipeline documentation and validation, version control, data storage, variant interpretation and reporting. Review the current edition with your accreditation materials.
Proficiency testing and alternative assessment
Most NGS analytes are not regulated analytes in CLIA Subpart I, so 42 CFR 493.1236(c) requires the lab to verify their accuracy at least twice a year. CAP-accredited labs must participate in available PT or perform alternative performance assessment at least twice a year. CAP offers NGS PT programs; alternatives include split-sample exchange with another lab or retesting of previously characterized samples. See NGS proficiency testing.
Personnel
Beyond Subpart M qualifications, plan for trained wet-lab technologists, a bioinformatician or bioinformatics service, and qualified individuals (often board-certified molecular geneticists or molecular pathologists) for variant interpretation and sign-out. Document training and competency for each role, including bioinformatics staff where they perform test steps.
Data, bioinformatics and storage
Plan compute (on-premises or cloud), pipeline version control, access controls, backup, and retention for FASTQ, BAM/CRAM and VCF files. Decide which files you keep and for how long based on CLIA record retention, accreditation and state rules, and your reanalysis policy. See bioinformatics pipeline validation.
How SLC helps
SLC supports NGS programs from feasibility through go-live: space planning, platform comparison, validation plan design, SOP writing, QC and run acceptance criteria, CLIA application, CAP preparation, PT strategy, personnel files and competency programs. SLC works with suppliers including QIAGEN, Fisher Scientific/Thermo Fisher and Promega for reagents and consumables. Plans from $500.
Choosing your first NGS test menu
The fastest route to a compliant NGS service is a narrow, well-defined first test. Labs that try to launch a large exome, a somatic tumor panel and an RNA fusion panel at once usually end up validating three different workflows with three sets of controls, reference materials and reporting rules. Pick the test with the clearest clinical demand, the most available validation material and a workflow your staff can master, then add tests in later phases using the same quality system.
When scoping, write down for each candidate test the intended use statement, the patient population, specimen types (blood, saliva, FFPE tissue, bone marrow, plasma), the variant classes that must be detected, the turnaround the ordering clinicians expect, and whether a send-out comparison lab exists. Those answers drive enrichment chemistry, sequencing depth, run batching and staffing.
Germline, somatic and infectious disease are different projects
Germline tests look for constitutional variants present at roughly 50 or 100 percent allele fraction, so validation focuses on accuracy across variant types, difficult regions and copy number detection, and reporting depends on variant classification and family implications. Somatic oncology tests must find low-fraction variants in mixed tumor samples, so limit of detection, tumor content assessment, FFPE artifact handling and therapy-relevant reporting dominate. Infectious disease and microbial sequencing introduces reference database curation, contamination sensitivity and different biosafety considerations. Plan each as its own validation, even on the same sequencer.
Wet-lab workflow from specimen to sequencer
A typical clinical workflow runs: specimen accessioning and acceptance check, nucleic acid extraction, quantity and quality measurement, library preparation, target enrichment if used, library quantification and size check, normalization and pooling, sequencer loading, and run monitoring. Each hand-off is a point where sample identity can be lost, so build barcoded tracking or a laboratory information system workflow before validation begins, and use the same tracking during validation that you will use for patients.
Accession with two unique identifiers on every tube
Record extraction method, input amount and quality metrics
Track reagent lots and instrument IDs per batch
Use plate maps with second-person verification for index assignment
Log library QC values against validated acceptance criteria
Hold pooled libraries in post-amplification storage only
Automation decisions
Liquid handlers reduce hands-on time and pipetting variability, but an automated method is a different method from the manual one. If you plan to automate within the first year, validate on the automated workflow, or plan a documented comparison study when you switch. Automation also adds maintenance, training and competency requirements for the robot itself.
Reports and interpretation
Clinical NGS reports should state the test performed, genes and regions covered, variants detected with classification, methodology, limitations including regions with insufficient coverage, and the name of the person who signed out the report. Decide early how you will handle variants of uncertain significance, incidental or secondary findings, and reclassification when evidence changes. Build the report template during validation so it can be reviewed with the rest of the package.
Budget and timeline drivers
The main cost drivers are the sequencer and service contract, library prep and enrichment reagents per sample, validation samples and reference materials, bioinformatics compute and storage, and qualified staff time for interpretation. The main schedule drivers are availability of validation samples with known results, staff hiring and training, and the time needed to run enough validation batches across days, operators and reagent lots. We size both during a free consultation rather than quote a generic figure.
Quality control that runs every day
After go-live, the quality system has to catch problems before they reach a report. Define acceptance criteria during validation for nucleic acid input, library yield and size, run-level metrics such as base quality and yield, and sample-level metrics such as coverage of required regions and control performance. Include a positive control with known variants and a negative or no-template control at the frequency your validation supports. Review metrics for every run, sign off before results are released, and trend them monthly so slow drift in coverage, duplicate rate or quality is visible. See NGS run QC metrics and clinical NGS workflow compliance.
Change control after launch
NGS changes constantly: kits are revised, sequencers are replaced, reference databases update and pipeline tools release new versions. Set up a written change control process before go-live. For each proposed change, record what is changing, which test steps it affects, the risk to results, the testing needed to show performance is unchanged, and director approval before use. Small changes may need a limited comparison; major changes such as a new enrichment design or variant caller may need substantial revalidation.
Getting started with SLC
Most engagements begin with a free consultation to review your goals, space, budget and timeline, followed by a written scope. Whether you need a full NGS lab build or help with one piece such as validation or CAP preparation, see our NGS consultant page for the phased approach.
Software: compliance tracking with myLabCompliance
Paper binders and spreadsheets break down once a lab runs multiple instruments, shifts and testing personnel. We recommend myLabCompliance, a web-based CLIA compliance management platform for technical consultants, lab directors, lab owners and quality teams. Its public site describes tools for personnel management, validation, quality control, equipment, document control, scheduling, analytics and audit-ready workflows.
QC logs and quality control records kept in one place
Personnel records and competency tracking
Validation records for new instruments and methods
Equipment records for maintenance and calibration
Document control for SOPs and policies
Scheduling for recurring tasks such as PT events and competency
More NGS resources from SLC
Frequently asked questions
What does an NGS lab consultant do?
Plans space and workflow, helps select platforms, designs validation, writes SOPs and QC criteria, and prepares the lab for CLIA and CAP.
Is clinical NGS high complexity?
Lab-developed and modified tests are high complexity under CLIA, which covers most clinical NGS.
Do NGS labs need PT?
CAP-accredited labs must enroll in available PT or perform alternative assessment twice yearly for NGS tests.
Is SLC tied to any sequencing company?
No. SLC is independent and helps labs set up instruments from any maker.
Where is SLC located?
SLC is a nationwide network; mailing address PO Box 2135, Chandler, AZ 85244.
Sound Lab Consultants (SLC), PO Box 2135, Chandler, AZ 85244. A nationwide clinical laboratory consulting network. Plans from $500.