ProcessingDifficulty 3/5
A correctly collected and labelled specimen is left under bright light for an hour before processing. What kind of error is this?
- AA post-analytical error, because the result was reported to the wrong provider
- BNo error at all, because the collection and labelling were performed correctly
- CA pre-analytical error, because handling requirements were not observed
- DAn analytical error, because the instrument measured the specimen incorrectly
Show answer and rationale
Correct: C. Task 5B requires maintaining specimen integrity against temperature, light and time requirements. Core Knowledge statement k9 names the impact of pre-analytical errors on test results, which is what this domain exists to prevent.
- D — The instrument measured the specimen it was given; the specimen itself had degraded.
- A — Post-analytical errors concern reporting and distribution, which had not yet happened.
- B — A flawless draw does not protect a specimen from being destroyed afterwards.