The Importance of Manual Urine Microscopy

Research presented today at the National Kidney Foundation spring clinical meeting indicates that manual microscopy surpasses automated analyzers when assessing kidney injury. The abstract is titled “Manual Microscopy: Not a Lost Art” and says, in part: “In this study, we examined if a significant difference exists between the reported ranges of granular and muddy brown casts using manual microscopy as compared to an automated urine analyzer in an acute kidney injury cohort.”

According to one of the abstract’s authors, Dr. Sharda, “What our research has been able to show so far is that the automated system under reported the value of granular casts in our patient cohort of acute kidney injury. The automated system still has utility as a screening test, but manual microscopy should be done in all cases of abnormal kidney function, as accurate quantification of casts could have some prognostic benefit to patients.”

The poster is available online. The authors are currently writing a paper on their research; their contact information is here.

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