PTH, Intact, FNA PTHFNA

Synonyms

Allscripts (AEHR) Order Name

PTH Intact, FNA

Sunrise Clinical Manager (SCM) Order Name

PTH, Intact, FNA

EPIC Order Name

Fine Needle Aspirate, Parathyroid Hormone (PTH), Intact

Clinical Info

Surgical treatment of hyperparathyroidism relies on the ability to accurately identify parathyroid tissue. The use of fine-needle aspirate (FNA) with measurement of intact parathyroid hormone (PTH) levels in suspected parathyroid cysts or adenomas is used to identify parathyroid tissue and has been proven to be a useful surgical adjunct in the treatment of hyperparathyroidism.

Specimen Type

Body Fluid

Specimen Volume

Container

Sterile

Collection Instructions

Container/Tube: Sterile Transport Tube
Specimen: 1mL fine needle aspirate(FNA) (0.8mL min)
Alternative Specimen(s)
Parathyroid-tissue washings • Non-lymph node washings • Non-nodal soft tissue washings or cervical node washings collected in a sterile transport tube
Transport Temperature: Frozen
Stability: 2 Hours Room Temperature
48 Hours Refrigerated
28 Days Frozen
Collection Instructions
A 25-gauge needle is inserted obliquely within the transducer plane of view and moved back and forth (passes) through the nodule to compensate for patient movement and needle deflection. There is no suction device; cells move into the needle via capillary action. After collection of the cytology samples, withdraw between 0.10 and 0.25 mL of saline up through each needle and empty this fluid back through the needle into a tube. This is the needle washing used for analysis. Repeat the passes and saline washings from the same biopsied site and empty contents into the same tube. The washes from all needles are pooled (final volume 1 mL). Inspect specimen for visible blood or tissue contamination. If bloody, centrifuge specimen and transfer supernatant to a new tube to send to the laboratory. The supernatant, not the cellular materials, is used for analysis. If the specimen is clear, centrifugation is not necessary.
Freeze immediately and transport frozen sample to laboratory directly. Do not send specimens in glass tubes.

Transport Instructions

Specimen Stability

2 Hours Room Temperature
48 Hours Refrigerated
28 Days Frozen

Methodology

Beckman Coulter Chemiluminescent

Days Performed

TAT: 4-7 Days

Performing Laboratories

Quest Diagnostics Nichols Institute

CPT

83970
LOINC Code:88106-0

PDM

225438

Result Interpretation

Forms