Urinalysis with Microscopic Examination of Sediment (Routine Urine Microscopy)

What Does the Microscope Look For?

Your urine sample is placed on a slide and viewed under a microscope to identify: - **Red blood cells (RBCs):** Can signal kidney damage, bladder infections, or bleeding disorders. - **White blood cells (WBCs):** Often linked to urinary tract infections (UTIs) or inflammation. - **Bacteria:** Presence may indicate a UTI or other infections. - **Casts:** Protein-filled structures that can point to kidney problems. - **Crystals or cells:** May suggest metabolic issues or kidney stones.

Why Might This Test Be Ordered?

A urine microscopy may be recommended if you have symptoms like frequent urination, pain, fever, blood in urine, or if your doctor suspects kidney disease, infection, or other urinary issues.

How Is the Test Performed?

A small sample of your urine is collected (often during a midstream clean-catch or catheterized sample) and sent to the lab. The lab technician prepares a slide and examines it under a microscope for cells, bacteria, or other abnormalities.

What Are Common Findings?

Common findings include: - **Leukocyte esterase:** A protein released by white blood cells, often indicating infection. - **Nitrites:** Bacteria-produced compounds that may signal UTIs. - **Epithelial cells:** Normal in small amounts but excessive amounts can suggest contamination or kidney issues.