Triple phosphate crystals (also called struvite crystals) form in alkaline urine and can appear in normal samples, particularly if the urine sat before testing. When they occur alongside a urinary tract infection, they can be more significant, because the bacteria that raise urine pH also promote struvite kidney stones. These stones can grow large and are linked to recurrent infections. Their presence is interpreted together with urine pH, bacteria, and white blood cells. Treating underlying infection and staying hydrated reduce their formation.
Triple Phosphate isn't sold on its own. It comes in a routine urinalysis, about $45. A fuller workup adds Vitamin D ($75), hs-CRP ($69), ApoB ($50), and ApoA1 ($50). You can test Triple Phosphate and 100 other biomarkers for $190 as part of an Empirical membership.
Empirical is FSA/HSA eligible, so you can pay with pre-tax dollars. Fast for 8-12 hours beforehand for the most accurate lipid and metabolic results, and expect results in days rather than weeks.
Triple Phosphate is drawn at 2,200+ Quest and BioReference patient service centers across the US, so there's usually one within a short drive. Browse the full directory to find the one closest to you.
Test your Urine Triple Phosphate Crystals and 100+ other biomarkers in a single blood draw.