Lab timestamp (seconds from casestart)¶
Lab timestamp (seconds from casestart) (lab table).
| Name in the dataset | lab_dt |
| Type | time |
| Stored in | lab_data.csv |
| Stamped by | Hospital records clock |
| Unit | sec |
Description¶
Machine-generated per-specimen time, not the result time: central-lab panels are logged about 10 min or more after the draw (specimen at the lab); blood gases 3-12 min after it (point-of-care entry or lab logging). The result is known only after a turnaround the release does not record, so a lab value must not be used at this time (the availability rule).
Its time is the lab system's result time: see Blood gas result time and Central lab result time.
Measurement space¶
A vertical slice through the measurement space: how the true value is spread around any one recorded value. Its shape is uniform.
Time¶
Its time side is still to be described.
Value¶
| Model kind | uniform: single resolution; uniform over the rounding interval |
| Resolution | 1 sec, floor |
| Native step | 1 sec |
| Anchor | floor (convention) |
In this release¶
How wide the true-value distribution is, record by record, over 0 of 0 records (every lab row of 600 random cases) that have one. Computed with the pinned model, aggregates only.
| Median | p10 to p90 | |
|---|---|---|
Anchor¶
Clock truncation to the whole second; at most 1 s, negligible. See what an anchor is and every variable's anchor.
Time and value together¶
Coupled. The value is itself a time: its value side and its time side are the same uncertainty.
Tags: generated, vitaldb-resolution