Urinalysis and Body Fluids 6th Edition by Majorie DiLorenzo, Susan Strasinger

Exercise 74

Match the following crystals seen in alkaline urine with their description/identifying characteristics:

____ Triple phosphate              1. Yellow granules

____ Amorphous phosphate              2. Thin prisms

____ Calcium phosphate              3. “Coffin lids”

____ Ammonium biurate              4. Dumbbell shape

____ Calcium carbonate              5. White precipitate

                         6. Thorny apple

Step 1 of 6

Triple phosphate:

Triple phosphate crystals are identified easily by prism shape that resembles “coffin lids”. When it disintegrates, the crystal develops feathery appearance.