Test Code CA Calcium, Plasma/Serum/Urine
Performing Laboratory
North Ottawa Community Hospital
Specimen Requirements
Submit only 1 of the following specimens:
Preferred:
Specimen Type: Plasma
Container/Tube: Mint-green top (lithium heparin gel)
Specimen Volume: 1 mL
Collection Instruction:
1. Label specimen as plasma.
2. Avoid hemolysis and lipemia.
Acceptable:
Specimen Type: Serum
Container/Tube: Serum gel or red top
Specimen Volume: 1 mL
Collection Instruction:
1. Label specimen as serum.
2. Avoid hemolysis and lipemia.
Specimen Type: Urine
Container/Tube: Plain, screw-top container
Specimen Volume: Entire collection
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative.
Reference Values
8.5-10.1 mg/dL
Critical values (automatic call-back): <6.0 mg/dL or >13.0 mg/dL
Day(s) Test Set Up
Monday through Sunday
Methodology
Colorimetric
Specimen Transport Temperature
Ambient
Test Classification and CPT Coding
82310
Specimen Storage and Stability
Specimen Type | Temperature | Time |
Serum/Plasma/Urine | Room Temp | < 4 hours |
Refrigerated (primary) | <22 days | |
Frozen | <1 year |