A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Parathyroid Hormone (PTH) Intact

Test Code
307


CPT Codes
83970

Preferred Specimen

Container/Tube: Yellow-Top Serum gel tube (SST), Green-Top Lithium Heparin gel tube (PST), EDTA Plasma
Specimen Volume: 2 mL of serum or plasma
Collection Instructions: Centrifuge and send serum or plasma in a plastic vial. See below for requirements.

Due to the nocturnal rise in intact-PTH level, specimen should be collected in the morning, after 7 am; preferable following an overnight fast. 




Specimen Stability
Correct handling of patient samples is critical to ensure the integrity of the intact PTH molecule. Intact PTH has been demonstrated to be labile and is susceptible to fragmentation. This instability depends on both time and temperature. Patient sample stability is outlined in the following table:

Temperature                EDTA Plasma Stability                 Serum Stability (yellow-top)                       Plasma (lithium\-heparin) green-top
Room Temperature               25 hours                                   Not tested                                                      Up to 9 hours
Refrigerated                          14 days                                   Not tested (keep refrigerated until frozen)         Up to 72 hours
Frozen                                 Not tested                                Within 8 hours                                                 Not tested
 


Methodology
Chemiluminescence

Setup Schedule
Monday through Sunday


Reference Range
18.0-88.0 pg/mL


Performed By
CoxHealth



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.