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What it could mean when amorphous sediment is found in urine is  that the temperature of the urine may have been out of range at the  time of the test. It could also mean th â¦ at the patient was  dehydrated while the test was done. 3 people found this useful.
3-16. Amorphous phosphate, triple phosphate (ammonium magnesium phosphate), calcium phosphate, and ammonium urate crystals are frequently found in alkaline urine specimens. The phosphates are all soluble in acetic acid and may be differentiated from other crystals by this characteristic.