Macro/microscopic examination of fluid (manual cell count and differential)

What Is This Test Used For?

This test is primarily used to detect abnormal cell counts or types in fluids like blood, urine, or spinal fluid. It helps identify conditions such as infections (e.g., bacterial or viral), blood disorders (e.g., leukemia), kidney issues, or neurological problems (e.g., meningitis).

How Is the Sample Collected?

A small amount of fluid is collected via a needle or catheter, depending on the type of fluid being tested. For example, blood is drawn from a vein, while urine or spinal fluid may be collected through a catheter or needle inserted into the body. The sample is then sent to the lab for microscopic and manual cell counting.

What Does the Test Involve?

The lab technician examines the fluid under a microscope to count and identify different cell types, such as red blood cells, white blood cells, and sometimes specialized cells like macrophages or neutrophils. Manual cell differentiation ensures accuracy for conditions requiring detailed cell analysis.

How Are Results Interpreted?

Results are reported as counts of specific cell types (e.g., total white blood cell count, percentage of neutrophils or lymphocytes). Abnormal counts or cell types may signal underlying health issues that require further medical evaluation.