PTH

Pathology category

Biochemistry

Code

PTH

Referral code

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Test information

Assessment of Calcium homeostasis. Levels are also measured in patients with CKD Stage 3b and above or on renal dialysis, to monitor tertiary hyperparathyroidism which develops in this condition. Levels may also be elevated in hypocalcaemia secondary to Vitamin D deficiency, and levels fall to normal once this is corrected.

Guidelines

Pre-analytical

Reference range

1.3 to 9.3 pmol/L

Source: Beckman Coulter

Tube type

Tube type info

Adults: 4ml EDTA (Purple top)

Paediatrics: 0.5ml EDTA (Purple top)

Special requirements

Minimum volume

Adults: 4 ml

Paediatrics: 0.5 ml

Assay frequency

Run daily at local laboratory

TAT Inpatient (urgent)

TAT Inpatient

24 hrs

TAT GP/Outpatient

48 hrs

Referral lab

Local, Clinical Biochemistry