Urates Information and Courses from MediaLab, Inc.

These are the MediaLab courses that cover Urates and links to relevant pages within the course.

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CLIA Chemistry / Urinalysis Review
Which two of the following crystalline elements are found in acid urine:	View Page
Which two of these urine elements are found exclusively in acid urine:	View Page

CLIA General Laboratory Review
Match the urine sediment or crystal to the correct description.	View Page

The Urine Microscopic: Microscopic Analysis of Urine Sediment
Common crystals which can be found in acid urine include:(Choose ALL of the correct answers)	View Page
Use the following urinalysis report to answer:The patient was a female and the examination was completed within two hours of collection. Color - light yellow Appearance - slightly turbid Sp. Gravity - 1.009 pH - 8 Glucose (Multistix) - 0 Glucose (Clinitest) - 0 Protein - 1+ Blood - 0 WBC - 5/HPF RBC - 1/HPF Epithelial - 0/HPF Casts - 2 hyaline/LPF Crystals - amorphous urates Bacteria - 2+True or false? The results are abnormal but all results correlate.	View Page
The patient was a female and the examination was completed within two hours of collection. Which of the following findings are inconsistent with the rest of the report?	View Page
Specimen #2 - Adult Male This report indicates that the specimen is normal. The physical characteristics and microscopic tests do not correlate, as 3+ amorphous urates would probably produce a more turbid or cloudy specimen. Amorphous crystals have little clinical significance and may precipitate out of solution with storage temperature changes. Therefore, the results may be reported.	View Page
Normal Crystals Normal crystals include uric acid, calcium oxalate, amorphous urates or phosphates, triple phosphate, ammonium biurate and calcium carbonate.	View Page
Amorphous Urates Amorphous urates appear as dark or yellow red granules while phosphates are white or colorless. The pH of the urine determines the type of amorphous crystals present. They may be urates in acid urine or phosphates in alkaline urine.	View Page
Crystals in Normal Acid Urine Crystals found in normal acid urine include uric acid, calcium oxalate and amorphous urates. This slide shows an example of uric acid crystals.	View Page
Which of the following may be found in normal alkaline urine?	View Page
Please identify these crystals occurring in acid urine.	View Page
Which of the following may be found in normal acid urine?	View Page
A urine specimen was delayed in transport to a medical laboratory. Upon examination of the urine sediment, the technologist cannot distinguish between bacteria and amorphous urates. Which of the following reagents would dissolve the crystals?	View Page
Amorphous Urates Amorphous urates can be dissolved in dilute sodium hydroxide. Amorphous phosphates will dissolve in dilute acetic acid. In either case, the bacteria will remain.	View Page