Tests:Calcium, Plasma: Difference between revisions

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Tests:Calcium, Plasma
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|-
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|Specimen Type
|Specimen Type
|7 mL <span style="background:#e30022"> red top </span>or 5 mL Li-Hep <span style="background:#3cb371"> green-top </span>
|Plasma
Serum
|-
|Preferred
|7 mL <span style="background:#e30022"> Red-Top </span>
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|Acceptable
|5 mL Li-Hep <span style="background:#3cb371"> Green-Top </span>
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|-
|Specimen Transportation
|Specimen Transportation
|
|-
|Preferred
|
|
|-
|-
|Pediatric Requirements
|Pediatric Requirements
|<span style="background:#99e6b3"> Li Hep Microtainer </span> paediatric tube 600 µL  
|600 µL <span style="background:#99e6b3"> Li-Hep Microtainer </span> Paediatric tube  
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|-
! colspan="2" |
! colspan="2" |
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|Sample Type
|Sample Type
|100 µL plasma or serum
|Plasma
Serum
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|Minimum Volume
|Minimum Volume
|
|100 µL
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|-
|Aliquot Transportation
|Aliquot Transportation
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|Advanced Notice
|Advanced Notice
|Not Required  
|Not required  
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|Patient Preparation
|Patient Preparation
|
|Not required
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|-
! colspan="2" |
! colspan="2" |

Revision as of 13:41, 31 January 2025


Overview

Department Biochemistry 
Test Code PCCA
Synonyms Ca

Ca2+

Turnaround Time 1 - 2 hours  
Stability – Add test 8 hours

Specimen Requirements

Specimen Type Plasma

Serum

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

Aliquot Requirements

Sample Type Plasma

Serum

Minimum Volume 100 µL
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.