Description
Disjoint specimen-volume ledger, with no inference about sampling adequacy or specimen handling.
Laboratory records distinguish specimen identity, sampling coverage, retained quantities, processing times, image scale, and measurement uncertainty. Areas, volumes, counts, and source-support flags measure different aspects of a record. A local calculation does not identify tissue or establish diagnostic adequacy.
Disjoint specimen-volume ledger, with no inference about sampling adequacy or specimen handling.
When to use this tool
Use Pathology Aliquot Retained Volume Gap when you need this specimen-record, sampling, processing-time, dimensional, or uncertainty calculation.
How to use the tool and how it works
- Enter receivedVolume, aliquotedVolume, consumedVolume, discardedVolume, recordedRetained. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read expectedRetained, recordGap. Use the output convention below.
Require nonnegative receivedVolume, aliquotedVolume, consumedVolume, discardedVolume, and recordedRetained, with the three outgoing volumes summing no higher than receivedVolume. Return expectedRetained=received-outgoing and recordGap=recordedRetained-expectedRetained.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| receivedVolume | Received Volume | Required. Finite number; minimum 0. |
| aliquotedVolume | Aliquoted Volume | Required. Finite number; minimum 0. |
| consumedVolume | Consumed Volume | Required. Finite number; minimum 0. |
| discardedVolume | Discarded Volume | Required. Finite number; minimum 0. |
| recordedRetained | Recorded Retained | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| expectedRetained | Expected Retained | Required. Finite number. |
| recordGap | Record Gap | Required. Finite number. |
{
"input": {
"receivedVolume": 100,
"aliquotedVolume": 20,
"consumedVolume": 30,
"discardedVolume": 10,
"recordedRetained": 35
},
"output": {
"expectedRetained": 40,
"recordGap": -5
}
}Limitations and assumptions
- Use one volume unit and distinct outgoing categories. Recorded retained volume is not capped by receipt, so discrepancies are retained; no specimen tracking, evaporation, or clinical adequacy is verified.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Signed zero is exported as zero.
Alternative or Complementary methods
Use validated laboratory procedures, traceable measurements, and authenticated specimen records for a complete assessment. Check the relevant sampling and processing assumptions before interpreting a local quantity.
References
Similar or alternative tools
- Pathology Cassette Block Count Reconcile
For nonnegative integer cassettes and createdBlocks, positive plannedBlocksPerCassette, and exhaustedBlocks<=createdBlocks return expectedBlocks=cassettes*plannedBlocksPerCassette, missingBlocks=expected-created, and remainingCreated=created-exhausted.
- Specimen Fixation Volume Ratio Record
Recorded fluid-to-specimen volume ratio only, without specifying a fixative, exposure duration or adequacy threshold.