Psoriatic arthritis laboratory tests: Difference between revisions
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==Overview== | ==Overview== | ||
There are no specific diagnostic laboratory findings associated with psoriatic arthritis. There are certain blood tests that can check for markers of inflammation. Other laboratory findings consistent with psoriatic arthritis include ESR and CRP levels, and synovial fluid analysis. | |||
== Laboratory Findings == | |||
*There are no specific [[Medical laboratory|laboratory]] findings associated with [[Psoriatic arthritis (patient information)|psoriatic arthritis]] and most the tests are non-specific. | *There are no specific [[Medical laboratory|laboratory]] findings associated with [[Psoriatic arthritis (patient information)|psoriatic arthritis]] and most the tests are non-specific. | ||
*However, there are certain [[Medical laboratory|laboratory]] tests that can check for markers of [[inflammation]] and to exclude other [[Disease|diseases]]. These include:<ref name="pmid17828345">{{cite journal |vauthors=Punzi L, Podswiadek M, Oliviero F, Lonigro A, Modesti V, Ramonda R, Todesco S |title=Laboratory findings in psoriatic arthritis |journal=Reumatismo |volume=59 Suppl 1 |issue= |pages=52–5 |date=2007 |pmid=17828345 |doi= |url=}}</ref> | *However, there are certain [[Medical laboratory|laboratory]] tests that can check for markers of [[inflammation]] and to exclude other [[Disease|diseases]]. These include:<ref name="pmid17828345">{{cite journal |vauthors=Punzi L, Podswiadek M, Oliviero F, Lonigro A, Modesti V, Ramonda R, Todesco S |title=Laboratory findings in psoriatic arthritis |journal=Reumatismo |volume=59 Suppl 1 |issue= |pages=52–5 |date=2007 |pmid=17828345 |doi= |url=}}</ref> | ||
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Chandrakala Yannam, MD [2]
Overview
There are no specific diagnostic laboratory findings associated with psoriatic arthritis. There are certain blood tests that can check for markers of inflammation. Other laboratory findings consistent with psoriatic arthritis include ESR and CRP levels, and synovial fluid analysis.
Laboratory Findings
- There are no specific laboratory findings associated with psoriatic arthritis and most the tests are non-specific.
- However, there are certain laboratory tests that can check for markers of inflammation and to exclude other diseases. These include:[1]
- CBC with differential count
- Elevated ESR
- Elevated CRP (C- reactive protein)
- Autoantibodies: The following autoantibodies may be found in patients with psoriatic arthritis.[2]
- Rheumatoid factor
- ANA (Antinuclear antibodies)
- Anti-citrullinated peptide antibodies (ACPA)
- Genetic markers:[3][4]
- Synovial fluid analysis: Elevated WBC count suggestive of inflammation.
References
- ↑ Punzi L, Podswiadek M, Oliviero F, Lonigro A, Modesti V, Ramonda R, Todesco S (2007). "Laboratory findings in psoriatic arthritis". Reumatismo. 59 Suppl 1: 52–5. PMID 17828345.
- ↑ Johnson SR, Schentag CT, Gladman DD (May 2005). "Autoantibodies in biological agent naive patients with psoriatic arthritis". Ann. Rheum. Dis. 64 (5): 770–2. doi:10.1136/ard.2004.031286. PMC 1755477. PMID 15834057.
- ↑ Chandran V, Bull SB, Pellett FJ, Ayearst R, Rahman P, Gladman DD (October 2013). "Human leukocyte antigen alleles and susceptibility to psoriatic arthritis". Hum. Immunol. 74 (10): 1333–8. doi:10.1016/j.humimm.2013.07.014. PMID 23916976.
- ↑ Eder L, Chandran V, Pellet F, Shanmugarajah S, Rosen CF, Bull SB, Gladman DD (January 2012). "Human leucocyte antigen risk alleles for psoriatic arthritis among patients with psoriasis". Ann. Rheum. Dis. 71 (1): 50–5. doi:10.1136/ard.2011.155044. PMID 21900282.