In an Automated Laboratory Workstation with a Bidirectional Laboratory Information

In an automated laboratory workstation with a bidirectional laboratory information system interface,the laboratory's bar-coded label on an individual specimen contains information regarding identification and the laboratory tests requested.The processor reads the bar code and the analyzer performs the analyses.Where can a preanalytical error still occur in this automated system?

A) When the instrument's calibration is not successful
B) When the quality control materials are out of the recommended range
C) When a data entry person enters incorrect laboratory test requests
D) When the equipment operator ignores equipment diagnostic messages