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・ Double Dribble (video game)
・ Double drop D tuning
・ Double drumming
・ Double Dubliners
・ Double dump valve
・ Double Dungeons
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・ Double Dutch
・ Double Dutch (album)
・ Double Dutch (jump rope)
・ Double Dutch (novel)
・ Double Dutch (song)
・ Double Dutch Bus
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Double dye test
・ Double Dynamite
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・ Double eagle
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・ Double Eagle (disambiguation)
・ Double Eagle (mine disposal vehicle)
・ Double Eagle II
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Double dye test : ウィキペディア英語版
Double dye test

Double dye test is useful for diagnosing vesicovaginal or ureterovaginal fistulae. For this test, the patient takes oral phenazopyridine (Pyridium) 200 mg TDS, and indigo carmine or methylene blue is filled into the empty urinary bladder via a urethral catheter. Pyridium turns urine orange in the kidneys, and methylene blue (or indigo carmine) turns urine blue in the bladder.
A tampon is placed into the vagina. If the tampon turns blue, vesicovaginal fistula is suspected. If the tampon turns orange, ureterovaginal fistula is suspected. If the tampon turns blue and orange, suspect a combination of vesicovaginal and ureterovaginal fistulae. It is important to be alert for leakage around the catheter, which may spill back into the vagina creating the false impression of a fistula. It is also important to ensure that adequate distension of the bladder occurs as some fistulae do not leak at small volumes; conversely, some fistulae with an oblique track through the bladder wall may leak at small volumes, but not at capacity. Direct inspection of leaking dye in vagina in lithotomy position is better than the traditional 'three swab test' as multiple fistulae may be located in this way.
==See also==

*Obstetric fistula
*Rectovaginal fistula
*Colposcopy
*Urinary incontinence

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Double dye test」の詳細全文を読む



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