Home Products Most Popular Contact
No items in your cart.
The page below is a sample from the LabCE course The Urine Microscopic: Microscopic Analysis of Urine Sediment. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

Learn more about The Urine Microscopic: Microscopic Analysis of Urine Sediment (online CE course) »
How to Subscribe
MLS & MLT Comprehensive CE Package
Includes 129 CE courses, most popular
$95 Add to cart
Pick Your Courses
Up to 8 CE hours
$50 Add to cart
Individual course$20 Add to cart

Cystine Crystals

Cystine crystals indicate an abnormality in metabolism of the amino acid cysteine. These crystals appear as colorless, refractile, hexagonal plates with even sides. Cystine crystals sometimes occur in pairs. They produce a red color in the nitroprusside reaction. Cystine may be confused with the hexagonal forms of uric acid but does not polarize light. Cystine crystals occur in acid urine.