What the programme covers
A laboratory value has meaning only with its analyte identity, unit, specimen, reference range and timing. Different sites and instruments may encode the same test differently, and missing tests may reflect clinical decisions rather than negative results.
What a useful specification includes
A defensible request defines the clinical task, source evidence and acceptance criteria before patient-level data moves. The exact fields and thresholds depend on the intended model claim.
- Required analytes and specimen types
- Time window around the index event
- Units, ranges and abnormal flags
- Site, instrument and method distributions
- Repeated-measure and aggregation rules
- Imaging, diagnosis or outcome linkage
Quality and validation controls
Laboratory curation retains source values while applying documented terminology and unit mappings. Implausible values, duplicates and timing conflicts are flagged rather than silently corrected.
- Analyte and code harmonization
- Unit conversion validation
- Reference-range and site differences
- Specimen and timestamp consistency
- Missingness and test-ordering bias
Availability, rights and delivery
Approved releases can include source and normalized values, data dictionaries, transformation rules and pseudonymous links to the relevant clinical timeline.
Public pages describe a sourcing and engineering capability, not guaranteed ready inventory. Each release remains subject to verified programme inventory, programme-specific authorization, privacy review, technical acceptance and buyer licence terms.
Questions, answered directly.
Can lab values be used as model labels?+
Potentially, if the analyte, timing and clinical interpretation fit the task.
Are units standardized automatically?+
Mappings can be automated, but conversions and ambiguous source codes require validation.
Can labs be linked to MRI or CT?+
Yes when the programme defines a valid clinical time window and source linkage.
Does a missing result mean normal?+
No. Missingness must be interpreted in the context of ordering and source-system coverage.