In some fields, five serious errors in two years would be acceptable. But not when the consequence is women being wrongly operated on. This was the traumatic upshot of mistakes in the reporting of pathology results during that period. In New Zealand.
Four women who were told they had cancer and needed to have their breasts removed went ahead with the operation - only to be told later there had been a mix-up with specimens. Another had part of her jaw cut away in error. In response to the focus put on these errors by this newspaper, the Ministry of Health convened a panel of medical experts in June to offer advice.
Some of its findings, released this week, offer little comfort. One verges on being disrespectful to the women affected. The panel concludes, in effect, that the error rate is acceptable. It is excused on the basis that international research shows the nature of processing specimens is vulnerable to errors of this type. Thus, while this country's laboratories compare well with those overseas, nothing different can be expected here.
Any experience like that endured by the five women should never be acceptable. And nor does the picture of high standards painted by the report tally with that of a senior pathologist spoken to by the Herald on Sunday.
Dr Ian Beer, of PathLab Waikato, said he and his colleagues were under pressure to meet a five-day deadline for breast cancer diagnoses. Biopsies were being processed in batches, and stressed staff were making mistakes. They were, he said, being "set up to fail". And failure was the outcome when four specimens were transposed with those of other patients during the laboratory process and a fifth was misinterpreted.