Sign in →

Test Code LAB534 Cytology, Fine-Needle Aspiration (FNA)

Useful For

Aspiration biopsy cytology is a diagnostic aid for the detection of cancer and its precursors in various organs and systems. It is useful for detection of cancer in asymptomatic patients, in high-risk groups, and in patients with clinically- and radiologically-suspected carcinomas. It is also an aid in detection of benign infectious processes.

Methodology

Light Microscopy

Performing Laboratory

Bozeman Health Laboratory Services

Specimen Requirements

Specimen Type: Varies

Container/Tube: Slides and container with CytoLyt

Specimen Volume: Adequate amount

Collection Instructions:

1. Using a lead pencil, label frosted end of 2 slides with patient’s name (first and last) and type of specimen.

2. Using needle and syringe, aspirate material.

3. Working rapidly, disconnect syringe from needle, fill syringe with air, and reconnect needle.

4. Carefully express a small drop of aspirated material onto end of slides.

a. In order to prevent splattering and loss of material, needle tip is brought into light contact with surface of slide.

b. A second slide is placed on top of first slide to obtain an even spread of material, and slides are separated.

c. Preparation of smear should be performed gently to prevent crushing of cells.

5. Permit slides to air dry in order that they might be stained by Wright-Giemsa method. Mark air-dried slides with “A.D.”
6. Allow slides to dry completely. Place slides in a cardboard slide holder.

7. Label holder with patient’s name (first and last), date and actual time of collection, source and site of specimen, physician’s name, and hospital identification number (if applicable).

8. After smears are made, carefully express aspirated material into container with CytoLyt fixative. To rinse needle and syringe, re-aspirate some of the fluid in container and express back into container.

9. Label container with patient’s name (first and last), date and actual time of collection, source and site of specimen, physician’s name, and hospital identification number (if applicable).

10. Place specimen in plastic specimen bag with request form inserted into pocket separate from specimen, and, if possible, deliver specimen to Cytology Laboratory.

Forms: Cytology Test Requisition (see Forms-Requisitions in left column)

Include patient’s name (first and last), date of birth, date of collection, address, phone number, Social Security number, insurance information, physician’s name and address, source and site of specimen, pertinent clinical history.

 

Specimen Rejection: The following specimens will be returned to submitting physician:

1. No request form

2. Name on request form does not match name on specimen container

3. Unlabeled specimen

4. No doctor’s name given

5. Broken slides that cannot be repaired

Specimen Transport Temperature

Ambient

Reference Values

Diagnostic interpretation is based on morphologic cellular changes and is reported to the clinician using descriptions, comments, and recommendations when appropriate.

Day(s) Test Set Up

Monday through Friday

Test Classification and CPT Coding

88173-Evaluation of fine-needle aspirate with or without preparation of smears; interpretation and report

88305-Cell block, if adequate material (if appropriate)

88312-Special stains, each (if appropriate)

88313-Air-dried slides for Wright stain (if appropriate)