Urine microscopy is a time-honored, readily available and commonly used noninvasive test to aid clinicians in discriminating between different forms of acute kidney injury. However, the diagnostic ...

“Gross” hematuria means there is so much blood that it changes the urine color, while “microscopic” hematuria is recognizable only in the laboratory. Blood in the urine can come from ...

Vaginal contamination can produce false positives. In one study comparing urine dipstick to microscopy performed by a nephrologist in the detection of white blood cells (WBCs) in urine ...

In a new study published in The Plant Journal, Cox and his team describe how they have developed ExPOSE (Expansion Microscopy in Plant Protoplast Systems), a technique that brings expansion ...

A 40-year-old man who was being treated in the ICU after inhalation of car exhaust in a suicide attempt was noted to have red urine. Notes This article was published on March 22, 2025, at NEJM.org.

Drug tests typically involve urine, hair, or blood sample tests, which the tester sends to a lab for analysis. While Ozempic may not show up from standard drug test bloodwork, it may be detectable ...

The A1C test is a blood test that measures the percentage of sugar attached to hemoglobin, a protein in red blood cells. The higher your A1C, the higher your average blood sugar levels have been ...

Dr R W A Jones, Department of Paediatrics, Derriford Hospital, Plymouth, Devon PL6 8DH, UK; robert.jones{at}phnt.swest.nhs.uk If you wish to reuse any or all of this ...