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A B C D E F G H I J K L M N O P Q

Test Identifier Information

 
Registration CodePTRP
Method

Beckman Coulter PTHrp IRMA

Diagnostic Use / Indications

May be of value in the differential diagnosis of hypercalcaemia.

PTHrP is often raised in hypercalcaemia of malignancy, whereas PTH is infrequently elevated in this condition.

PTHrP is not elevated in primary hyperparathyroidism whereas PTH usually is.

External Price$126.35(Exclusive of GST)
  

Specimen Collection

 
Pre-Testing Requirements

Obtain special tube from Endolab. Store frozen until use.

Specimen Collection Protocols

Draw the blood sample with a syringe & needle and then transfer about 3ml of the blood from the syringe to the green labelled PTHrP cocktail tube and mix the contents gently with 4 or 5 inversions. AS soon as possible centrifuge and transfer the plasma to the black labelled plastic aliquot tube provided (labelled "PTHrP plasma only") within 15 minutes of collection. Store and transport frozen. 

Note: the PTHrP cocktail tube should be used straight from the freezer - no warming or heating required.
Patient SpecimenBlood 3 mL in special tube available from Endolab
Paediatric SpecimenAs above (no reduction in volume permitted).
Sample Delivery to LabFrozen plasma (see Collection Protocol)
  

Instructions for Referral to CHLabs

 
Aliquot InstructionsMinimum >0.3mL special plasma. Preferably >0.5 mL special plasma. Freeze.
Aliquot Transport to CHLFrozen
  

CHLabs Laboratory

 
DepartmentEndocrinology Laboratory
Contact Details Email Email
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Contact Phone Number(03) 3640886 | x80886
Test AvailabilityAt least 4 monthly.
Turnaround TimeMax 4 months.
Reference Interval

<1.5 pmol/L

Interpretation

See Diagnostic Use.

Additional Information

PTHrP is rapidly destroyed by plasma enzymes. Blood must be collected and then mixed in a special tube containing a cocktail of enzyme inhibitors. Perform all separation, aliquoting and freezing steps as quickly as possible. PTHrP said to be stable at least 4 months at -20°C

Delphic Number Test Number6529

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