Biurate Information and Courses from MediaLab, Inc.
These are the MediaLab courses that cover Biurate and links to relevant pages within the course.
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| Which one of the following crystals is not found in normal urine: | View Page |
| Identify the urine sediment elements indicated by the arrow in the illustration: | View Page |
| Identify the sediment elements present in this alkaline urine: | View Page |
| Match the urine sediment or crystal to the correct description. | View Page |
| What element is present in this slide? | View Page |
| What element is present in this slide? | View Page |
| True or false? Ammonium biurate is present in this slide. | View Page |
| Normal Crystals Normal crystals include uric acid, calcium oxalate, amorphous urates or phosphates, triple phosphate, ammonium biurate and calcium carbonate. | View Page |
| Crystals in Normal Alkaline Urine Crystals found in normal alkaline urine include triple phosphate, ammonium biurate, calcium carbonate, amorphous phosphates, and calcium oxalate. This slide shows an example of triple phosphate crystals. These may appear as four to six sided prisms resembling coffin lids. They indicate either stasis of the bladder or a stale sample. | View Page |
| Ammonium Biurate Crystals Ammonium biurate crystals commonly occur in the form of "thorn apples," as shown here, or in polyhedral shapes. They are deeply colored from a dark yellow to brown. They sometimes appear in clumps or clusters. This crystal occurs only in stale urine. | View Page |
| Please identify these crystals. | View Page |
| Which of the following may be found in normal acid urine? | View Page |