rejected specimen

rejected specimen

Lab medicine Any blood, urine or other specimen for which one or more of the tests ordered cannot be performed as the specimen does not meet laboratory acceptability critieria
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Each rejected specimen should be recorded in a log book with relevant details.
For each rejected specimen included in the study, the following information was recorded: patient age, specimen type, laboratory testing section, test priority, time of specimen receipt and time of specimen rejection, rejection reason, detection method used for rejection due to improper labeling, whether or not a recollected or relabeled specimen was requested by the laboratory, time of recollected/ relabeled request, time of recollected/relabeled specimen receipt, recollection method for blood and urine specimens, if applicable, and result time.
It may be identified by laboratory personnel to reconcile an entry on the preceding day's log of rejected specimens, which includes those for which no test has been ordered.
A total of 301 surgical patients were identified; 75 were excluded from the study owing to an absence of laboratory records (42), sinus histology reports without corresponding microbiology reports (29), incomplete microbiology reports (3) and rejected specimens (1).
Solution: Studies have repeatedly shown that a laboratory-based specimen-collection staff commits fewer patient identification and labeling errors and has lower blood culture contamination rates and fewer rejected specimens.
In addition, the conclusions were based on the analysis of a single measure of effectiveness, percentage of rejected specimens.
We acknowledge that optimal validation of this algorithm would require randomly selecting and testing rejected specimens during a phase of high disease prevalence.
In some reports, hemolyzed specimens, the most common reason for rejection, account for ~60% of rejected specimens, fivefold more than the second most common cause (2).
If the scrap rate appears too high, the rejected specimens can be manually tested for Brinell hardness to salvage some.
Following detailed directions supplemented by telephone advice from QPC staff at the College of American Pathologists, participants recorded the events in the 6 of 7 monitors that produced rates (outpatient order-entry errors, patient ID band defects, rejected specimens, STAT test receipt-to-report TAT outliers, defective critical value reporting events, and corrected reports).
Going back to the check sheet, it is evident that most of the rejected specimens are collected by nurses in either the operating room or the emergency room.
But it is more than just rejected specimens and re-collects that plague laboratories receiving blood drawn by nonlaboratory personnel," says Dennis J.