Follow above mentioned guidelines as far as possible for those examinations done on more than two equipments.
Use commutable calibrators to calibrate different procedure, equipment and methods
Commutable Calibrators: Those calibrators which are designed for use across equipments/methods/procedures.
Notifies users of any differences in comparability of results and discuss any implications for clinical practice when measuring systems provide different measurement intervals for the same measurand (e.g. glucose) and when examination methods are changed.
Record and, as appropriate, expeditiously act upon results from the comparisons performed.
Identify problems or deficiencies; act upon and record actions taken.