Catheter encrustation by struvite.
Encrusted catheters from 10 female patients were the source of 26 samples of deposits which were examined by X-ray diffraction. Four different types of catheter were represented. The only detectable compound in all of the samples was ammonium magnesium orthophosphate hexahydrate (NH4MgPO4 . 6H2O), which occurs naturally as the mineral struvite.
D000368:Aged; D002408:Catheters, Indwelling / Q000009:adverse effects; D005260:Female; D006801:Humans; D008274:Magnesium / Q000032:analysis*; D017616:Magnesium Compounds; D008875:Middle Aged; D010710:Phosphates / Q000032:analysis*; D000069877:Struvite; D014546:Urinary Catheterization / Q000009:adverse effects / Q000295:instrumentation*; D014961:X-Ray Diffraction
D017616:Magnesium Compounds; D010710:Phosphates; D000069877:Struvite; D008274:Magnesium