The short answer
A laboratory information system (LIS) manages the full life of a test: order, sample collection and labelling, analysis, result validation, report release and billing. It reduces transcription errors, tracks samples and turnaround time, and can connect to analyzers. Hospital labs benefit most when the LIS shares the patient record and bill with the HMS.
Key takeaways
- An LIS follows the sample from order to report, not just the report itself. Sample identity and status tracking are its core.
- Analyzer interfacing is optional but valuable. Manual entry and typed reports must still be supported for tests that are not automated.
- Turnaround time, sample rejection and result corrections are the lab quality signals an LIS should make visible.
- Hospital labs gain from a shared record: orders come from OPD, IPD and emergency, and results flow to the doctor and the bill without re-entry.
- Choose by workflow fit, validation and audit features, integration honesty and the ability to cover pathology, radiology and other diagnostics on one workflow.
What is a laboratory information system?
A laboratory information system (LIS) is software that manages the work of a clinical or pathology laboratory from the moment a test is ordered to the moment a validated report reaches the doctor or patient. It records who the patient is, what was ordered, which sample was collected, when and by whom, what the analyzer or technician found, who validated it, and what was billed.
Think of it as the lab's memory and traffic controller. It does not run the tests. It makes sure the right sample gets the right test, the right result lands on the right patient, and nothing is lost between the bench and the report.
In a hospital, the LIS is usually a module of the larger system, so orders arrive from OPD, IPD and emergency, and results return to the clinician and the bill. In a stand-alone diagnostic centre, it is the central system. See our laboratory information system module for how that looks in practice.
How does a laboratory information system work?
The flow below is what most labs recognise, whether they are in a hospital or a collection centre.
- Order. A doctor orders tests from OPD, IPD or emergency, or a walk-in is registered at the lab counter.
- Registration and billing. The patient is identified by UHID. Test charges are added, with package rates or payer rules applied.
- Sample collection. A phlebotomist collects the sample. The LIS prints a label with a unique sample ID, usually as a barcode.
- Sample receipt and routing. Samples reach the lab, are scanned in, and are routed to the correct section: biochemistry, haematology, microbiology and so on.
- Analysis. Tests run on an analyzer or manually. Automated analyzers can receive worklists and send results back, if integrated.
- Result entry or capture. Results are captured from the analyzer or typed in by the technician.
- Validation. A technician or pathologist reviews results, flags abnormal values and out-of-range results, and approves.
- Reporting. The report is released with reference ranges, remarks and signature. It is available to the clinician and optionally the patient.
- Archive and audit. Everything is stored, and every edit is logged.
We go step by step through how to shorten that path in reduce lab turnaround time.
What are the key features of a good LIS?
Patient and order management
- Registration with UHID and duplicate checks.
- Orders from clinical departments in the same queue as walk-ins, with priority for emergency cases.
- Test panels, packages and profile management.
Sample management
- Unique sample IDs and barcode or QR labels.
- Collection time, collector and container type recorded.
- Receipt scanning, rejection reasons and recollection requests.
- Status tracking: ordered, collected, received, in process, validated, reported.
Our post on barcode sample tracking in labs goes deeper.
Result entry and analyzer interfacing
- Manual entry screens for tests that are not automated.
- Typed reports and templates for descriptive reports such as histopathology or imaging impressions.
- Optional analyzer interfaces so orders go out and results come back automatically.
Read LIS analyzer interfacing: ASTM and HL7 explained for how that works.
Validation and quality
- Reference ranges by age and sex.
- Abnormal and critical flags.
- Delta checks, which compare a result to the same patient's previous result.
- Multi-level approval for sensitive tests.
- Amendment trail: a corrected report keeps the history of what changed.
Reporting and communication
- Report templates with your letterhead and signatures.
- Print, PDF and optional messaging when a report is ready.
- Doctor and patient views of results.
Billing and inventory
- Test pricing, packages, discounts with approval, and payer-wise rates.
- Reagent and consumable tracking, where the lab chooses to use it.
- Outsourced test tracking for referral labs.
Administration
- Role-based access: technician, pathologist, receptionist, manager.
- An audit trail of creates, edits and deletes.
- Management reports on volumes, revenue and turnaround.
Why do labs need an LIS?
Paper registers and spreadsheets work until volume rises. Then the following problems appear.
- Transcription errors. Re-typing values from analyzer printouts is a common source of mistakes.
- Lost or mismatched samples. Handwritten labels get smudged or confused.
- Slow reporting. Reports wait for someone to type, print and sign.
- No visibility. The lab cannot tell which tests are overdue.
- Weak traceability. If a result is questioned, it is hard to prove who did what and when.
- Billing mismatches. Tests run but not billed, or billed but not run.
An LIS addresses these by making each step a recorded event rather than a handover.
How does an LIS connect to analyzers?
Many laboratory analyzers can talk to a computer system through a defined interface. Two protocols are commonly used in the market: ASTM-based serial or network interfaces, and HL7 messages. In a typical setup, the LIS sends the worklist (which tests for which sample ID) to the analyzer, the analyzer runs the tests, and results come back to the LIS automatically for review.
Not every analyzer, and not every model of the same type, has the same output options, so each device is assessed individually. A reputable vendor will ask for the model, the interface specification and the connection type before promising anything. Our lab analyzers integration page outlines the general approach, and the full ASTM and HL7 explainer shows what is exchanged.
Remember also that integration is optional. A good LIS lets you run entirely on manual entry and typed reports, so you are not forced into machine dependency, and you can add device connections gradually as volume grows.
What does an LIS mean for quality and accreditation?
Laboratory accreditation in India is handled by NABL, whose medical laboratory assessments are based on the ISO 15189 standard. Accreditation is a voluntary, lab-wide quality programme that looks at processes, competence, equipment, documentation and quality indicators. Software is one input, not a substitute.
An LIS helps because many things an assessor wants to see are naturally recorded in it:
- Sample traceability from collection to report.
- Turnaround time by test and section.
- Rejection and recollection reasons.
- Amended reports and who authorised them.
- User access and audit trail.
It is accurate to say that an LIS can help you prepare records for such reviews. It would not be accurate to say that software makes a lab accredited. For the hospital-wide view, see our NABH and hospital software article.
What quality measures should you track?
Use a small, honest set.
| Measure | What it shows | Why it matters |
|---|---|---|
| Turnaround time (TAT) | Time from order or receipt to released report | Clinician waiting, patient stay |
| Sample rejection rate | Share of samples rejected | Collection training and pre-analytical quality |
| Recollection requests | How often patients are called back | Patient experience |
| Amended reports | Corrections after release | Result accuracy and process control |
| Critical result communication | Time to inform the clinician | Patient safety |
| Outsourced test delay | Time from send-out to result | Referral lab performance |
Define each measure in writing, including start and stop points, before you track it. TAT in particular can mean order-to-report, collection-to-report or receipt-to-report. Mixed definitions give misleading numbers.
How does an LIS fit with the HMS and RIS?
In a hospital, the lab does not work alone. Orders come from OPD, IPD and emergency. Results go back to the doctor's screen and to the discharge summary. Charges go to the bill. Radiology and other diagnostics follow the same order-to-report pattern.
When the LIS shares a record with the HMS, you avoid duplicate registration and manual billing entries. When pathology, radiology, cardiology and endoscopy run on one workflow, a new service line is configured rather than custom-built, as DevOrbital HMS does with a shared diagnostics workflow, where walk-ins and emergency cases enter the same queue. See also the radiology information system and the broader hospital management system.
How does an LIS differ for hospital labs, standalone labs and collection centres?
The same software idea fits three quite different set-ups, and the priorities shift.
- Hospital lab. Orders arrive from OPD, IPD and emergency, so the biggest wins are a shared patient record, priority queues for urgent samples and results that reach the ward and the bill without re-entry.
- Standalone diagnostic centre. Walk-in registration, home or camp collection, packages, doctor-wise referrals and report delivery matter most, along with quick billing at the counter.
- Collection centre. The lab is elsewhere, so sample dispatch, outsourced test tracking and report retrieval carry the workflow. A light LIS that keeps sample IDs, statuses and reports in order is usually enough.
Ask the vendor to demonstrate your type of set-up, not a generic one. A system that is excellent for an inpatient hospital may feel heavy at a collection counter, and the reverse is also true.
How should a lab choose an LIS?
Use this checklist when you evaluate options.
- Workflow fit. Walk through your actual flow, including outsourced tests and emergency priority.
- Sample tracking. Check barcode labels, scanning and rejection capture.
- Result entry options. Manual, typed and templated reports, plus analyzer interface if needed.
- Validation features. Reference ranges, flags, delta checks, approval levels.
- Audit trail. Every edit and amendment recorded.
- Reports. Format, branding and signatures to match your requirements.
- Integration honesty. Per-device assessment, not blanket promises.
- Shared record. If you are a hospital, check that the LIS and HMS share patient and billing data.
- Deployment and data. Cloud or on-premise, backups, export.
- Training and support. Technicians, pathologists and front-desk each need their own training.
Our HMS buyer's checklist has a version of this for the whole hospital.
How do you implement an LIS without disrupting the lab?
A phased approach keeps the bench running.
Phase 1: masters and registration
Load test masters, panels, reference ranges and rates. Set up registration and billing, and start printing labels.
Phase 2: sample tracking and manual results
Use scanning for receipt and manual result entry with validation. Retire paper registers once the team is comfortable.
Phase 3: analyzers
Scope one analyzer at a time. Test in a staging environment with real sample IDs, compare results against manual values, then go live and monitor.
Phase 4: reporting and analytics
Add TAT dashboards, rejection tracking and outsourced test follow-up.
What mistakes should you avoid?
- Interfacing everything at once. Start with the highest-volume analyzer.
- Skipping test master clean-up. Duplicate test names and old rates cause billing and reporting errors.
- Ignoring pre-analytical steps. Most lab errors happen before the analyzer, in collection and labelling.
- Not training collectors. Barcode labels are only useful if scanned at every stage.
- Treating TAT as a lab-only metric. Delays often sit in registration, transport or clinician review.
Next steps
If you run a hospital lab, start with the laboratory information system module and see how it shares data with the hospital management system. For stand-alone labs and collection centres, the diagnostic centres and pathology labs page covers typical setups, and the faster lab turnaround page maps the goal to workflows.