Clinical Tests to Detect a type of Psoriatic Arthritis:
Ankylosing Spondylitis
Radiation Tests
Among the radiological tests that may be performed to form a EA, we must distinguish between the X-ray, which is used in clear cases of suspicion for the advanced case.
If, however, no clear evidence of the disease, good mobility in less advanced cases or atypical-is often used for bone scan.
This procedure will show on an x-ray plate with metabolically active areas, ie places where there is an inflammatory process.
For this determination is injected into the patient intravenously, a radioactive isotope of very short half-life that will make "fluorescent" in areas of inflammation, which is reflected in the x-ray film.
It is important to note that in most cases, the radiographic changes do not occur before 5 years of symptom onset.
Laboratory Tests
Blood and urine tests are not conclusive for the diagnosis of AD, while we clarify the presence of HLA-B27 the existence or absence.
In addition, these tests are necessary during the course of the disease, they help to evaluate the inflammatory activity, and knowing the consequences of medication on certain organs or fluids (kidney, liver, blood, etc).
Recently, laboratory tests have been proposed as the determination of MMP-3 in the monitoring of treatment with etanercept.