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Test Code PTHIO Intra-Operative Parathyroid Hormone (PTH)

Important Note

During Parathyroid surgery a STAT PTHIO (Parathyroid Hormone IntraOperative) may be ordered to determine whether the correct Parathyroid was extracted.

Additional Codes

Ordering Mnemonic




Performing Laboratory

Holland Hospital Laboratory Services

Specimen Requirements

Submit only 1 of the following specimens:



Container/Tube: Mint-top (lithium heparin) tube

Specimen Volume: 1 mL of plasma

Collection Instructions:

Note: 1. Indicate plasma.
2. Label specimen appropriately (plasma).



Container/Tube: Serum gel tube

Specimen Volume: 1 mL of serum

Collection Instructions:

Note: 1. Indicate serum.
2. Label specimen appropriately (serum).

Specimen Transport Temperature

Refrigerate; Freeze if >8 hours

Day(s) Test Set Up

Monday through Sunday

Reference Values

12-88 pg/mL