Microscopic examination of urine sediment (urinalysis microscopic evaluation)

What the Test Looks For

Your urine sample is mixed with a special dye and viewed under a microscope. The test looks for various components, including red blood cells (hematuria), white blood cells (pyuria), casts (protein or cell clusters), crystals, or other particles that may indicate health concerns.

Common Findings and Their Possible Causes

Red blood cells may signal kidney damage, bleeding in the urinary tract, or urinary tract infections. White blood cells often point to infections. Crystals can indicate metabolic issues or kidney stones, while casts may suggest kidney disease or inflammation.

Sample Preparation and Testing Process

A small urine sample is collected, typically in the morning for consistency. The sample is processed and mixed with a reagent before microscopic examination. The test does not require fasting or special preparation beyond urinating into a clean container.

When This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like pain or burning during urination, frequent urination, blood in urine, or if you have risk factors for urinary tract infections, kidney disease, or other conditions affecting the urinary system.