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The '''bladder tumour antigen''' (BTA) test is used in the detection of ]. It works by detecting raised levels of complement factor H‐related protein (CFHrp), which is produced by cancer cells, in urine. The test can be qualitative, in which just the presence of the antigen is detected or quantitative, in which the ''amount'' of the antigen is measured. <ref name="pmid35950042">{{cite journal |vauthors=Soputro NA, Gracias DN, Dias BH, Nzenza T, O'Connell H, Sethi K |title=Utility of urinary biomarkers in primary haematuria: Systematic review and meta-analysis |journal=BJUI Compass |volume=3 |issue=5 |pages=334–343 |date=September 2022 |pmid=35950042 |pmc=9349596 |doi=10.1002/bco2.147 |url=}}</ref><ref name="pmid24940462">{{cite journal |vauthors=Guo A, Wang X, Gao L, Shi J, Sun C, Wan Z |title=Bladder tumour antigen (BTA stat) test compared to the urine cytology in the diagnosis of bladder cancer: A meta-analysis |journal=Canadian Urological Association Journal = Journal De l'Association Des Urologues Du Canada |volume=8 |issue=5-6 |pages=E347–52 |date=May 2014 |pmid=24940462 |pmc=4039599 |doi=10.5489/cuaj.1668 |url=}}</ref> |
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The '''bladder tumour antigen''' (BTA) test is used in the detection of ]. It works by detecting raised levels of complement factor H‐related protein (CFHrp), which is produced by cancer cells, in urine. The test can be qualitative, in which just the presence of the antigen is detected or quantitative, in which the ''amount'' of the antigen is measured.<ref name="pmid35950042">{{cite journal |vauthors=Soputro NA, Gracias DN, Dias BH, Nzenza T, O'Connell H, Sethi K |title=Utility of urinary biomarkers in primary haematuria: Systematic review and meta-analysis |journal=BJUI Compass |volume=3 |issue=5 |pages=334–343 |date=September 2022 |pmid=35950042 |pmc=9349596 |doi=10.1002/bco2.147 |url=}}</ref><ref name="pmid24940462">{{cite journal |vauthors=Guo A, Wang X, Gao L, Shi J, Sun C, Wan Z |title=Bladder tumour antigen (BTA stat) test compared to the urine cytology in the diagnosis of bladder cancer: A meta-analysis |journal=Canadian Urological Association Journal = Journal De l'Association Des Urologues Du Canada |volume=8 |issue=5-6 |pages=E347–52 |date=May 2014 |pmid=24940462 |pmc=4039599 |doi=10.5489/cuaj.1668 |url=}}</ref> |