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Fluorescent treponemal antibody absorption test

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biotype Rieter. The purpose of the absorbent is to remove anti-treponemal antibodies that are not specific for the syphilis bacteria. The pre-adsorbed patient serum is then added to the slide; if the patient has been infected by syphilis, their antibodies will bind to the bacteria.
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This test is not useful for following therapy, because it does not wane with successful treatment of the disease, and will continue to be positive for many years after primary exposure. FTA is nearly 100% sensitive in CSF, meaning negative CSF FTA excludes neurosyphilis.
215:(a fluorophore)-labeled anti-treponeme antibody and TRITC (another fluorophore)-labeled anti-human antibodies are added as secondary antibodies. The spirochete location is identified using the FITC staining, and the TRITC staining identifies whether the patient has anti- 177:
but have been shown repeatedly to be sensitive but not specific for the diagnosis of neurosyphilis in cerebrospinal fluid (CSF). In addition, FTA-ABS turns positive earlier and remains positive longer than VDRL. Other treponemes, such as
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Since the test has high negative predictive value it is very useful in both serum or CSF to exclude/rule out neurosyphilis if the FTA test result is negative. " A negative FTA in serum excludes neurosyphilis".
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extracted from rabbit testicular tissue. This is spread over and fixed to a slide. Patient serum is mixed with an absorbent (the "ABS" part of the test) containing an extract of a non-pathogenic treponeme,
43: 182:, may also produce a positive FTA-ABS. The ABS suffix refers particularly to a processing step used to remove nonspecific antispirochetal antibodies present in normal serum. 700: 312: 757: 201:
The antigen for the FTA-ABS test is whole bacteria. The bacteria cannot be cultured on laboratory media, so the organisms used are a lyophilized suspension of
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species, such tests would be assumed to be more specific than non-treponemal testing such as
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As a confirmatory test for a positive result from a serum screening test (RPR for example).
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if you can. Unsourced or poorly sourced material may be challenged and
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FTA-ABS Fluorescent treponemal antibody absorption test
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Singh, Ameeta E.; Barbara Romanowski (1 April 1999).
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You can help Knowledge (XXG) by 25: 714: 657: 123: 31: 777:Infectious disease blood tests 499:Orthopoxvirus inclusion bodies 59:add the appropriate references 1: 251:Clinical Microbiology Reviews 145:diagnostic test for syphilis 44:reliable medical references 808: 709: 652: 451:Heterophile antibody test 163:is a diagnostic test for 50:or relies too heavily on 792:Medical diagnostic stubs 787:Infectious disease stubs 726:diagnostic article is a 593:Bloodstream infections 562:Sabin–Feldman dye test 477:Warthin–Finkeldey cell 576:Diagnosis of malaria 263:10.1128/CMR.12.2.187 208:Treponema phagedenis 549:Protozoan infection 409:Anti-streptolysin O 352:rapid plasma reagin 334:Bacterial infection 667:infectious disease 637:C-reactive protein 446:Epstein–Barr virus 434:Branched DNA assay 326:infectious disease 170:Treponema pallidum 739: 738: 682: 681: 650: 649: 395:HelicoCARE direct 149: 148: 132: 131: 108: 16:(Redirected from 799: 760: 753: 746: 718: 711: 703: 696: 689: 661: 654: 581:SchĂĽffner's dots 494:B type inclusion 484:Inclusion bodies 463:NS1 antigen test 315: 308: 301: 292: 285: 284: 274: 242: 134: 127: 126: 118: 115: 109: 107: 66: 35: 34: 27: 21: 807: 806: 802: 801: 800: 798: 797: 796: 767: 766: 765: 764: 708: 707: 651: 646: 625: 587: 543: 532:Councilman body 421:Viral infection 415: 381:Weil–Felix test 367:Abelin reaction 357:Wassermann test 328: 319: 289: 288: 244: 243: 239: 234: 225: 199: 128: 124: 119: 113: 110: 67: 56: 52:primary sources 36: 32: 23: 22: 15: 12: 11: 5: 805: 803: 795: 794: 789: 784: 779: 769: 768: 763: 762: 755: 748: 740: 737: 736: 719: 706: 705: 698: 691: 683: 680: 679: 662: 648: 647: 645: 644: 639: 633: 631: 627: 626: 624: 623: 618: 613: 608: 603: 597: 595: 589: 588: 586: 585: 584: 583: 578: 566: 565: 564: 553: 551: 545: 544: 542: 541: 536: 535: 534: 522: 517: 516: 515: 503: 502: 501: 496: 491: 481: 480: 479: 467: 466: 465: 455: 454: 453: 443: 442: 441: 436: 425: 423: 417: 416: 414: 413: 412: 411: 399: 398: 397: 385: 384: 383: 371: 370: 369: 364: 359: 354: 349: 338: 336: 330: 329: 320: 318: 317: 310: 303: 295: 287: 286: 257:(2): 187–209. 236: 235: 233: 230: 224: 221: 198: 195: 194: 193: 190: 147: 146: 143: 139: 138: 130: 129: 122: 120: 39: 37: 30: 24: 14: 13: 10: 9: 6: 4: 3: 2: 804: 793: 790: 788: 785: 783: 780: 778: 775: 774: 772: 761: 756: 754: 749: 747: 742: 741: 735: 733: 729: 725: 720: 717: 713: 704: 699: 697: 692: 690: 685: 684: 678: 676: 672: 669:article is a 668: 663: 660: 656: 643: 642:Procalcitonin 640: 638: 635: 634: 632: 628: 622: 619: 617: 614: 612: 609: 607: 604: 602: 601:Blood culture 599: 598: 596: 594: 590: 582: 579: 577: 574: 573: 572: 571: 567: 563: 560: 559: 558: 557:toxoplasmosis 555: 554: 552: 550: 546: 540: 537: 533: 530: 529: 528: 527: 523: 521: 520:Cowdry bodies 518: 514: 511: 510: 509: 508: 504: 500: 497: 495: 492: 490: 489:Downie bodies 487: 486: 485: 482: 478: 475: 474: 473: 472: 468: 464: 461: 460: 459: 456: 452: 449: 448: 447: 444: 440: 437: 435: 432: 431: 430: 427: 426: 424: 422: 418: 410: 407: 406: 405: 404: 403:Streptococcus 400: 396: 393: 392: 391: 390: 386: 382: 379: 378: 377: 376: 372: 368: 365: 363: 360: 358: 355: 353: 350: 348: 345: 344: 343: 340: 339: 337: 335: 331: 327: 323: 316: 311: 309: 304: 302: 297: 296: 293: 282: 278: 273: 268: 264: 260: 256: 252: 248: 241: 238: 231: 229: 222: 220: 218: 214: 209: 204: 196: 191: 188: 187: 186: 183: 181: 176: 172: 171: 166: 162: 158: 154: 144: 140: 135: 121: 117: 114:November 2021 106: 103: 99: 96: 92: 89: 85: 82: 78: 75: â€“  74: 70: 69:Find sources: 64: 60: 54: 53: 49: 45: 40:This article 38: 29: 28: 19: 732:expanding it 721: 675:expanding it 664: 568: 526:yellow fever 524: 513:Negri bodies 505: 469: 458:Dengue fever 401: 389:Helicobacter 387: 373: 361: 254: 250: 240: 226: 216: 207: 202: 200: 184: 179: 168: 160: 156: 152: 150: 111: 101: 94: 87: 80: 68: 48:verification 41: 616:Parasitemia 539:Tzanck test 429:HIV testing 322:Blood tests 217:T. pallidum 203:T. pallidum 180:T. pertenue 42:needs more 771:Categories 375:Rickettsia 232:References 84:newspapers 197:Procedure 782:Syphilis 621:Algaemia 611:Fungemia 342:syphilis 281:10194456 165:syphilis 724:medical 630:General 606:Viremia 570:malaria 471:measles 223:Utility 157:FTA-ABS 142:Purpose 98:scholar 63:removed 18:FTA-ABS 507:rabies 279:  269:  100:  93:  86:  79:  71:  722:This 665:This 439:mChip 272:88914 105:JSTOR 91:books 728:stub 671:stub 324:for 277:PMID 213:FITC 175:VDRL 161:test 151:The 77:news 46:for 267:PMC 259:doi 773:: 275:. 265:. 255:12 253:. 249:. 159:) 65:. 759:e 752:t 745:v 734:. 702:e 695:t 688:v 677:. 314:e 307:t 300:v 283:. 261:: 155:( 116:) 112:( 102:· 95:· 88:· 81:· 55:. 20:)

Index

FTA-ABS
reliable medical references
verification
primary sources
add the appropriate references
removed
"Fluorescent treponemal antibody absorption test"
news
newspapers
books
scholar
JSTOR
syphilis
Treponema pallidum
VDRL
FITC
"Syphilis: Review with Emphasis on Clinical, Epidemiologic, and Some Biologic Features"
doi
10.1128/CMR.12.2.187
PMC
88914
PMID
10194456
v
t
e
Blood tests
infectious disease
Bacterial infection
syphilis

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