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Test Code CA Calcium, serum

Specimen Requirements

Submit only one of the followings
 

Preferred
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0mL 
Minimum Volume: 0.5mL serum
Collection Instructions: Allow specimen to clot for 30 minutes and centrifuge within 2 hours

 

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Acceptable
Specimen Type: Plasma
Container/Tube: Green Top (Li Heparin/PST)
Volume: 4.5mL
Minimum Volume: 0.5 mL Plasma
Collection Instructions: Centrifuge within 2 hours

Sample Stability

** Preferred temperatures for storage prior to and during shipping to NUH **

 

Specimen Type: Serum/Plasma
Ambient: 7 days
Refrigerate: 3 weeks
Frozen: 8 months

 

Reference Interval

Age  
0 – <1 week 1.85 – 2.80 mmol/L
1 week – < 6 mths 2.20 – 2.80 mmol/L
6mths – 1 yr 2.20 – 2.70 mmol/L
2 – 17 yrs 2.20 – 2.65 mmol/L
≥18 yrs 2.10  – 2.60 mmol/L

Days and Times Performed

24 hours, TAT 1 day

Methodology

Arsenazo III

Service Code

31021

Update

Last updated 26/02/2022

Unacceptable Condition

 

Haemolysis NA
Icterus NA
Lipaemic NA
Others NA

 

Testing Laboratory

National University Hospital

Clinical Chemistry, 67724346

Useful For

Evaluation of calcium metabolism