Parathyroid Hormone, FNAB, Needle Wash

Patient Preparation: For 12 hours before this procedure Do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins. Collection Instructions: 1. Needle wash specimens for analysis should be collected in conjunction with cytology specimens. 2. Have saline available prior to start of procedure. Saline is the only acceptable solution for needle washings. 3. After each fine-needle aspiration biopsy (FNAB) has been collected and the material in the needle has been expelled onto a slide for cytologic analysis, attach the used FNAB needle to an empty syringe. 4. Withdraw between 0. 10 mL and 0. 25 mL of saline up through the needle until the saline starts to fill the hub of the needle or end of the syringe. 5. Expel this fluid back through the needle into a separate plastic aliquot tube. This is the needle washing used for analysis. 6. Repeat steps 2 through 4 for each needle pass of the same biopsied site and empty into the same tube, accumulating a total of 0. 5 mL to 1. 5 mL of fluid to send to the laboratory. Additional Information: 1. If more than 1 site is biopsied, each washing material should be submitted on a separate tube and under a different order number. 2. A minimum of 0. 5 mL is required for testing; however, the total collection volume should not exceed 1. 5 mL. Sample volumes outside these parameters may be rejected. 3. Do not send saline control. This test has been validated to rule-out saline matrix effect.

LAB16575 PTHNW

PTHNW

@BKRCERMSGREFRESH(2302793)@ @BKRCERMSGREFRESH(2302794)@

Processing Instructions (Lab use only): Inspect specimen for visible blood or tissue contamination: -a. If bloody, centrifuge specimen and transfer supernatant to a new plastic aliquot tube (5-mL standard tube) to send to laboratory. The supernatant, not the cellular material, is used for analysis.-b. If specimen is clear, centrifugation is not necessary.Freeze within 2 to 4 hours of collection. Minimum Testing Volume: 0.5 mL Needle Wash Transport Temperature: Frozen Stability: Ambient: N/A Refrigerated : 4 hoursFrozen: 30 days Causes for Rejection: Gross hemolysisGross icterus

4-Days

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