Chromium & Cobalt (plasma)

Test investigation

Chromium & Cobalt (plasma)

Laboratory offering test

NNUH

Units

nmol/L

Also known as/Frequency of test

Cr &Co

Sample type

Trace elements tube (Navy top BD tube)

Turnaround times (TAT) Urgent/Routine/GP or OPD

7 working days

Reference intervals

‘Patients with metal-on-metal hip implants: Metal ion concentrations should be interpreted alongside clinical assessment/hip score and imaging. In stemmed total hip replacements Cr > 134.5 nmol/L and/or Co > 119 nmol/L concentrations may be associated with wear or corrosion at non-articulating surfaces (MDA/2017/018).’