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Check sample availability for retesting.

Compare a proposed test's volume and handling requirements with the actual aliquots, reservations and restrictions.

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Illustration of a seal following a sample vial to an analytical instrument and its result.

You: REQ-107 needs 0.80 mL. Do we have a sample available for the repeat?

neil

A1 has 0.60 mL, so it is 0.20 mL short. A2 has 1.00 mL but is reserved for another study. There is enough physical material in A2, but no currently unreserved aliquot shown that covers the request.

A1 is short; A2 is already reserved
A1 is short; A2 is already reserved. Required, A1, A2 reserved: 0.8 mL, 0.6 mL, 1 mL. Example records.0.8 mLRequired0.6 mLA11 mLA2 reserved

You: Can we just take A2?

neil

Only after the reservation owner approves any reassignment and the aliquot is suitable for the repeat. I would check identity, storage, previous use and the intended test before proposing it. I would not pool aliquots or remove another study's reservation automatically.

You: Write this up for review, with the sources and the follow-up work we need.

neil

Here is the draft. I have kept the supported finding separate from the open questions, and prepared the evidence requests for the responsible roles.

REQ-107 sample allocation optionsReview draft · source evidence and assessment

REQ-107 sample allocation options

The request needs 0.80 mL in an appropriate allocated sample. A1 provides only 0.60 mL, while A2's 1.00 mL is committed elsewhere. Adding the physical volumes would hide both the shortfall and the reservation. Any proposed reassignment needs the reservation owner's decision and a check of sample identity and suitability; the example does not authorise pooling or release of A2.

Source evidence and search scope

REQ-107 (Repeat-test request); A1-107 (Unreserved aliquot); A2-107 (Reserved aliquot)

REQ-107 / Repeat-test request

Recorded evidence
Requires 0.80 mL

A1-107 / Unreserved aliquot

Recorded evidence
0.60 mL remains

A2-107 / Reserved aliquot

Recorded evidence
1.00 mL reserved for another study
Inputs needed for your own records
  • Proposed test method and minimum sample quantity
  • Aliquot quantities, locations and handling history
  • Reservations, restrictions and repeat-test authorisation

The laboratory owner authorises repeat testing and any allocation. A volume calculation does not authorise pooling, unreserving or using a held sample.

Fictional source snapshots. No live query, assignment or approval.

Follow-up work and evidence requests2 proposed tasks · not assigned

Evidence to request

Assess a reservation change
Study and sample owners
Confirm whether A2's existing commitment can be changed and record the impact on that study before any reassignment.
Confirm repeat-test suitability
Laboratory reviewer
Verify required volume, identity, storage and use history for the proposed aliquot. Keep allocation and testing authorisation separate.
Example conversation · prepared replies

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What to bring for this job
  • Proposed test method and minimum sample quantity
  • Aliquot quantities, locations and handling history
  • Reservations, restrictions and repeat-test authorisation

Source access, permissions and permitted actions are agreed for your environment.

Source excerpt

REQ-107

Repeat-test request

Recorded evidence
Requires 0.80 mL

Selected fictional record, not a live source-system view.

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