A nucleated cell count (NCC) is a laboratory test that measures the number of cells with a nucleus present in a specific sample. This count can be performed on a variety of biological fluids, including:
* Cerebrospinal fluid (CSF): Used to assess inflammation and infection in the central nervous system.
* Pleural fluid: Used to diagnose and monitor infections, inflammation, and malignancy in the pleural space.
* Peritoneal fluid: Used to assess inflammation and infection in the peritoneal cavity.
* Synovial fluid: Used to diagnose and monitor inflammatory conditions of the joints.
Why is it important?
Nucleated cells are typically present in small numbers in healthy fluids. An elevated NCC can indicate:
* Infection: Inflammatory cells, such as neutrophils and lymphocytes, are recruited to the site of infection.
* Inflammation: Various conditions can cause inflammation, leading to an increase in white blood cells.
* Malignancy: Cancer cells often have a nucleus and can be found in body fluids.
* Other conditions: Trauma, autoimmune disorders, and other conditions can also elevate the NCC.
How is it performed?
The NCC is typically performed by microscopic examination of a stained sample. A trained technician counts the number of nucleated cells within a specific volume or area of the sample. The results are reported as the number of cells per microliter (µL) or per milliliter (mL) of fluid.
Limitations:
* The NCC is a nonspecific test, meaning that an elevated count can indicate a variety of conditions.
* The test does not provide information about the type of cells present, which can be important for diagnosis.
* The accuracy of the test can be affected by factors such as sample contamination or inadequate preparation.
In summary, the nucleated cell count is a valuable diagnostic tool that can help identify inflammation, infection, and malignancy. However, it is important to interpret the results in conjunction with other clinical findings and laboratory tests for accurate diagnosis and treatment.
