Where the Laboratory Sits in the Study
Part of Clinical Laboratory (LAB) Training: Foundations for the Trial Laboratory.
About 2 minutes. Free, in your language, no account needed.
You are one link in a chain you cannot see all of
A sample passes through several hands before it becomes a result. You hold one segment. What you record is what the next person has to work from.
Knowing who is on either side of you makes escalation faster when it matters.
Who sends you samples
The site team. Coordinators and nurses draw the sample and complete the requisition. They set the collection time you will process against.
If the requisition is wrong, you are the first person positioned to notice. Saying so early is cheaper than saying so later.
Who you send to
The central laboratory, on most multi-site studies. They run the assay that produces the reportable result. They also set the laboratory manual you work to.
A biorepository, for samples held for later or exploratory analysis. Those may sit for years, so labeling quality matters more, not less.
Who governs the work
The sponsor owns the protocol and the endpoints. They decide what is a deviation.
The monitor reviews your records against the protocol during visits. They are checking whether the record supports the sample, not whether you are careful.
The investigator holds overall responsibility for the conduct of the trial at the site, including laboratory work performed under delegation.
The laboratory manual outranks habit
Your laboratory has standard practice. The study has a laboratory manual. When the two differ, the manual wins for that study.
This is the most common source of honest error. A technician does the correct thing for the laboratory and the wrong thing for the protocol.
Read the manual for each study. Do not assume this study handles a sample the way the last one did.
Escalating is part of the job
Raising a concern is not a failure. It is the mechanism working.
A deviation reported in an hour is a documented, explained event. The same deviation found by a monitor in three months is a finding.