filter paper card
Specialized absorbent paper cards used to collect and transport dried blood spot specimens.
Full Definition
Standardized collection cards made of high-quality filter paper that absorb blood uniformly and preserve analytes during transport and storage. These cards must meet strict manufacturing specifications to ensure consistent absorption properties and analytical reliability. The paper composition and thickness are regulated to maintain specimen integrity.
Usage
Usage note: Use 'filter paper card' for the physical collection medium; 'Guthrie card' refers to the historical method.
In Context
- "The filter paper card must be completely filled to ensure adequate sample volume." — Collection procedure manual
- "Contaminated filter paper cards require specimen recollection." — Laboratory rejection criteria