BODY FLUID CELL COUNT WITH MANUAL DIFFERENTIAL

Test Code

LAB210

Alias/See Also

CELL COUNT/DIFF, BODY FLUID, BF CELL CNT

CPT Codes
89050, 89051

Preferred Specimen

Lavender top tube

Minimum Volume

1.0 mL

Other Acceptable Specimens

Sterile Container

Instructions

Indicate source of specimen on specimen container and request form

Transport Temperature

Refrigerated

Methodology
Microscopy, impedence

Setup Schedule

Set Up:Daily Report Available:1 day

Reference Range

APPEARANCE, BODY FLUID	Visual	Clear
EOSINOPHIL, BODY FLUID	Microscopy	Reference ranges not established
LYMPHOCYTE, BODY FLUID	Microscopy	Reference ranges not established
MONOCYTE, BODY FLUID	Microscopy	Reference ranges not established
OTHER CELL, BODY FLUID	Microscopy	Reference ranges not established
NEUTROPHIL, BODY FLUID	Microscopy	Reference ranges not established
RBC, BODY FLUID	Microscopy	Reference ranges not established
WBC,BODY FLUID	Microscopy	Reference ranges not established

Clinical Significance

The body cavities are lined by a thin membrane composed of a single layer of mesothelial cells. The membranes that surround the lungs, heart and intestines are called the visceral layer, and that covering the outer walls the parietal layer. The fluid that is produced between these two layers acts as a lubricant and is normally clear, pale yellow and contains no micro-organisms. The fluid itself is formed through a delicate balance of hydrostatic and colloid osmotic pressures of the tissue and vascular system. When this equilibrium is disturbed, pressure increases and fluid is pushed into the cavity. It is this accumulation of fluid (effusion) that is removed and submitted to the laboratory for analysis. Many pathologic conditions lead to the buildup of serous fluids. Generally, they are divided into two disease groups, transudates and exudates. Transudates are due to a systemic problem that disrupts the balance in the regulation of fluid filtration and reabsorption - ex: a change in hydrostatic pressure created by congestive heart failure: Transudates are characterized by low protein, low LD, low specific gravity (<1.015), and a low cell count. Exudates involve the actual membranes of the cavity, due to conditions resulting from infection, infarction or malignancy. Exudates have specific gravities >1.015. It is generally the exudates that are of more concern to the physician, as further testing of transudates fluids is not necessary.

Performing Laboratory
GBMC Hematology

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.