Generally, when users search for aliquots, they Pre v10.2, this field is called “Aliquot Sequence” and supported only aliquot count.
From v10.2 onwards, the ‘Aliquot Sequence’ field is renamed to ‘Sequence’ and is available for both aliquot and derived child specimens.
The sequence is computed by grouping the available specimens using their visit ID, parent specimen ID, and specimen type attributes.
Following examples will to understand the sequence better.
Parent Sample Sequence: If you create 2 specimens of the same type under a visit, then they will get sequence 1 and 2.
Visit Name | Parent Label | Sequence |
---|---|---|
VN01 | Whole_Blood_01 | 1 |
VN01 | Fresh_Tissue_02 | 1 |
VN01 | Urine_03 | 1 |
VN01 | Urine_04 | 2 |
VN02 | Whole_Blood_01 | 1 |
VN02 | Whole_Blood_02 | 2 |
Derivative Example: If there are 3 different types of derivatives created from a parent specimen then all these will get sequence as 1. On creating an additional specimen of the same type the counter gets increased by 1 which makes the sequence 2.
Visit Name | Parent Label | Derivative Label | Sequence |
---|---|---|---|
VN01 | WB01 | WB01_Plasma_01 | 1 |
VN01 | WB01 | WB01_Plasma_02 | 2 |
VN01 | WB01 | WB01_BuffyCoat_01 | 1 |
VN01 | WB01 | WB01_RBC_01 | 1 |
VN02 | WB01 | WB01_Plasma_01 | 1 |
VN02 | WB01 | WB01_Plasma_02 | 2 |
Aliquot Example:
Generally, when you search for aliquots, you are interested only in a subset that should be displayed in the query results , and not all aliquots under a specimen. Using the 'Aliquot Sequence' filter, it is possible to limit limiting the number of aliquots displayed per parent specimen in the query results is possible.
It is a dynamic virtual counter . It which generates the sequence for the aliquots under a parent specimen for the query, starting from 1.
For example, a user wants to view 3 aliquots per 1 aliquot parent specimen. A filter can be applied in the query as "Specimen >> Specimen Statistics >> Aliquot Sequence Less than or >> Specimen Statistics >> Sequence Equals 31"
This will retrieve maximum 3 ACTIVE aliquots per parent specimen. (Demo Query)
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Note |
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A system job, 'Scheduler to refresh specimen additional details,' is scheduled to run every night. This allows the updating of the aliquot sequence. More information on jobs: System Jobs |