What characteristic of struvite (ammonium magnesium phosphate) stones makes antibiotics ineffective when treatment is being performed?
Bacteria inaccessible to antibiotics. Struvite calculi harbor infective bacteria within their interstices. Effective therapy must be directed to eradicate associated infection. Struvite stones are the second most common type of renal calculi after calcium oxalate stone.
Resistant bacteria
Poor excretion of antibiotics
Ineffective antibiotics
Bacteria inaccessible to antibiotics
Urethra & Penis