What exactly is acute phosphate nephropathy?

Phosphorus toxicity. Acute kidney injury or acute renal failure caused by high phosphate either with phosphate enema for colonoscopy or other reasons. Can form phosphate crystals in kidney.
Acute phos neph. This is an acute kidney injury following phosphate laxative, such as FLEETS; the phosphate blood concentration rises very high and crystallizes along blood vessels and in kidney - causing acute inflammation and acute injury -
Phosphate deposits. Phosphate deposits in kidney. May be seen after high phosphoous loads from enema preparations especially if you have renal insufficiency.