Test Code CYTO CSF Cytology Cerebrospinal Fluid
Specimen Handling Instructions
Specimens are collected without alcohol or other fixatives added.
When a fungal infection is clinically suspected, the requisition should note this to be sure the appropriate histochemical stains are performed.
Usually a small amount of fluid is collected through a lumbar tap. However, fluid may be aspirated from the
ventricular and suboccipital space as well. The ventricular fluid is frequently the most cellular specimen.
The fluid is collected into a clean, dry container, (which need not be sterile), and sent to the laboratory as
soon as possible. Specimen container should have a secure lid/cap.
Department
Cytology
Routine Turn-around Time
1 day
Preferred Specimen
The diagnostic accuracy improves with the collection of larger samples. If several samples are obtained, the second or third should be used for cytology.