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Catalog ID PTH/ICa Parathyroid Hormone with Ionized Calcium

CPOE Test Name



PTH/ICa; PTH, Parathyrin

Specimen Type

Sodium Heparin Plasma

Specimen Requirements

Dark green sodium heparin tube; 4 mL blood minimum

Storage and Transport

Specimen should be transported immediately after collection. Deliver to the Receiving Laboratory within 2 hours after specimen is drawn.

Reference Values

PTH: 11.1 – 79.5 pg/mL

Ionized Calcium: 4.5 - 5.3 mg/dL

Causes for Rejection

Improper labeling; wrong tube; insufficient quantity; delay > 2 hours in ionized calcium assay


PTH: 83970

Ionized Calcium: 82330

Performing Lab

Core Laboratory AD 3301 721-2120

Test Consists

Ionized Ca and PTH assay