A specimen that arrives at the laboratory compromised is worse than a specimen that never arrives. At least with a lost specimen, the clinical team knows immediately that they need to redraw. A compromised specimen — one that hemolyzed in transit, exceeded its temperature range, or arrived without proper chain-of-custody documentation — might not reveal its problems until the lab reports an invalid result hours later.

For any healthcare facility that relies on laboratory testing to drive clinical decisions, specimen transport isn't a back-office logistics issue. It's a quality-of-care issue. Here's what every facility should know.

Temperature Requirements Are Not One-Size-Fits-All

Different specimen types have different temperature requirements, and those requirements matter. Whole blood specimens for coagulation testing must typically be transported at room temperature and arrive at the lab within four hours of collection. Many chemistry panels require refrigerated transport. Frozen specimens for certain molecular tests require dry ice or validated frozen transport.

The worst assumption a courier can make is that all specimens are the same. Before your facility enters a courier relationship for specimen transport, confirm that the courier understands the temperature requirements of your most common test types — and that they have the equipment to maintain them.

Chain of Custody Starts at Collection

Chain of custody in specimen transport begins the moment the specimen is collected, not the moment the courier picks it up. Your internal process for labeling, packaging, and handing off specimens to the courier is part of the chain — and gaps in that process create liability exposure for your facility regardless of what the courier does downstream.

A complete chain-of-custody record for a specimen should include:

  • Patient identifier and collection information
  • Specimen type and collection date/time
  • Person who prepared the specimen for transport
  • Time and location of courier pickup
  • Courier driver identification
  • Temperature log (where applicable)
  • Time and location of laboratory delivery
  • Laboratory receiving personnel

If your current courier can't provide documentation that covers all of these points, your chain of custody has gaps.

Packaging Is Your First Line of Defense

Specimens should always be transported in appropriate primary containers (the original collection tube or container), inside a secondary containment that is leak-proof and labeled with the biohazard symbol where applicable, inside a tertiary outer shipping container. This isn't just best practice — for specimens meeting the definition of biological substances or infectious substances under DOT regulations, it's a legal requirement.

Before handing a specimen to any courier, confirm that your packaging meets the requirements for the specimen type and the applicable regulatory category.

What to Do When Something Goes Wrong

Despite best practices, specimen transport failures happen. The difference between a recoverable situation and an unrecoverable one often comes down to how quickly the failure is identified and communicated.

If a specimen is lost, delayed beyond its viability window, or arrives with evidence of temperature excursion or container compromise:

  1. Document everything immediately — the condition of the specimen, the time of discovery, who identified the problem.
  2. Notify the laboratory immediately — they need to know before they process a potentially compromised specimen.
  3. Notify the ordering provider — depending on the clinical urgency, a redraw may need to happen immediately.
  4. File a formal incident report — whether or not the failure originated with your facility or the courier, document it.
  5. Debrief with your courier — a courier that treats specimen transport failures as learning opportunities rather than exceptions to minimize is one worth keeping.

Selecting the Right Specimen Transport Partner

The questions that matter most when evaluating a specimen transport courier:

  • Do they have experience specifically with clinical laboratory specimen transport, or is it a subset of a general delivery operation?
  • Can they demonstrate temperature-controlled transport capability for your specimen types?
  • What does their chain-of-custody documentation look like, and does it meet your laboratory's requirements?
  • What is their protocol when a pickup is missed or a specimen is compromised in transit?
  • Are they familiar with DOT regulations for biological substance transport?

Specimen transport is not a commodity. The courier you choose for your laboratory specimens is part of your quality management system, whether you think of it that way or not.

Questions about how Sameday Logistics Health handles laboratory specimen transport? Reach out — we're happy to walk you through our protocols.