Intermediate
Technical
IVT
unsatisfactory for testing
A specimen classification indicating the sample cannot be analyzed due to collection or handling problems.
Full Definition
Unsatisfactory for testing describes specimens that fail pre-analytical quality criteria and cannot provide reliable results. Common causes include insufficient blood volume, clotting, contamination, improper storage conditions, or damaged filter paper. These specimens require recollection to ensure adequate newborn screening coverage and avoid missed diagnoses.
Usage
Usage note: Use complete phrase rather than abbreviations in formal communications.
In Context
- "The card was marked unsatisfactory for testing due to multiple layers of blood application." — Laboratory rejection report
- "Hospital staff received feedback on reducing unsatisfactory for testing rates through improved collection techniques." — Quality improvement meeting
Also known as
inadequate specimen
unacceptable sample
Contrasted with
satisfactory for testing
adequate specimen
Don't confuse with
unsatisfactory result
specimen rejection