My investigation found the following very serious pathology errors:

• labs did not recommend the right tests
• interpretation information was incorrect
• results were not accurate

The errors were so significant that they have the potential to very seriously affect interpretation of the vitamin B12 status, leading to misdiagnosis.

In addition to discovering the pathology errors, what I encountered included:

• "loss" of many blood samples; one lab "lost" 29 samples
• deliberate destruction of blood samples, preventing further testing by other labs
• refusal to release results because of fear of publication
• denial of any fault by labs, and threat of legal action if I publish my findings