Spondyloarthropathy laboratory findings

Laboratory findings

Another term for Spondyloarthropathies that has been used years ago was seronegative arthritis, which demonstrate the negativity of any specific serum level of any rheumatoid factor such as ANA, ANCA, and etc.

However, there are some other non specific laboratory findings that can help to evaluate the patient treatment response.

Laboratory findings in SpA
Examination	Level	% of population
Haemoglobin	Decreased (Anemia of chronic disease)	15%
ESR	Elevated	75%
CRP	Elevated	75%
ALP	Elevated	50%
CK	Elevated
IgA	Elevated