Intermediate
Technical
In the Industry Vocabulary Test
unsatisfactory specimen
A blood spot sample that fails to meet quality criteria for reliable screening analysis.
Full Definition
Specimens that cannot be processed due to issues such as insufficient blood volume, contamination, clotting, layering, or improper collection technique. These samples require recollection to ensure accurate screening results. Common causes include inadequate heel warming, multiple puncture attempts, or collection onto wet or contaminated cards.
Usage
Usage note: Distinguish from 'specimen rejection' which may include administrative issues beyond sample quality.
In Context
- "The laboratory reported an unsatisfactory specimen due to insufficient blood volume." — Laboratory result notification
- "Unsatisfactory specimen rates increased following changes to collection protocol." — Quality metrics report
Also known as
rejected specimen
inadequate sample
Contrasted with
satisfactory specimen
acceptable specimen
Don't confuse with
critical sample
presumptive positive