Tests:Calcium, Plasma: Difference between revisions

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Tests:Calcium, Plasma
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|Hawera Lab Availability
|Hawera Lab Availability
|Monday- Friday, 8am - 4 30pm
|Monday- Friday, 8am to 4 30pm
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|Turnaround Time
|Turnaround Time

Revision as of 08:26, 3 October 2025

Overview

Department Biochemistry 
Test Code PCCA
Synonyms Ca

Ca2+

Base Lab Availability Monday - Sunday, testing routinely available out of hours
Hawera Lab Availability Monday- Friday, 8am to 4 30pm
Turnaround Time 1 - 2 hours  
Stability – Add test 8 hours

Specimen Requirements

Specimen Plasma

Serum

Preferred 7 mL Red-Top
Acceptable 5 mL Li-Hep Green-Top
Unacceptable
Specimen Transportation
Paediatric Requirements 600 µL Li-Hep Microtainer

Aliquot Requirements

Sample Plasma

Serum

Preferred Volume 100 µL
Minimum Volume
Aliquot Transportation

Clinical Information

Reference Intervals 2.2 - 2.6 mmol/L  
Test Method Abbott c8000 series analyser using Abbott reagents.   
Advanced Notice Not required  
Patient Preparation Not required

Comments

All Calcium requests will be reported with a corrected calcium value.

Corrected Calcium = Calcium + 0.012*(39.9 - Albumin)

Prolonged stasis during venepuncture and haemolysis will give false high values 

For baseline level, patient should be fasted for 12 hours and seated for 20 minutes prior to specimen collection.

Owner Clair Crossley (Crossley1)
Last reviewed 03.10.2025
Next review 03.10.2026 (Due soon)