Test Code CA Calcium
Additional Codes
Test ID |
CA |
EPIC Test ID |
LAB53 |
Performing Laboratory
St. Luke's Hospital Cedar Rapids
Specimen Requirements
Container/Tube:
Preferred: Green-top (lithium heparin) tube
Acceptable: Gold-top serum gel tube or plain red-top tube
Specimen Volume: 2.3 µL of sample plus dead volume
Stability: Samples should be separated as soon as possible to prevent falsely lowered calcium levels. Specimens may be kept at 2 – 8°C for 3 weeks. For longer storage, samples may be frozen at -20°C for up to 8 months.
Reference Values
Serum/Plasma |
Normal |
Critical Value |
||
Age |
Low (mg/dL) |
High (mg/dL) |
Low (mg/dL) |
High (mg/dL) |
0 - 11 days |
7.6 |
10.4 |
6.0 |
12.0 |
15 days - 2 years |
9.0 |
11.0 |
6.0 |
13.0 |
2 - 12 years |
8.8 |
10.8 |
6.0 |
13.0 |
12 - 18 years |
8.4 |
10.2 |
6.0 |
13.0 |
18 - 60 years |
8.6 |
10.0 |
6.0 |
13.0 |
60 - 91 years |
8.8 |
10.2 |
6.0 |
13.0 |
91+ Years |
8.2 |
9.6 |
6.0 |
13.0 |
Day(s) Test Set Up
Monday through Sunday
Useful For
Calcium measurements are used in the diagnosis and treatment of parathyroid disease, a variety of bone diseases, chronic renal disease, and tetany (intermittent muscular contractions or spasms).
Methodology
Photometric
Test Classification and CPT Coding
82310
Report Available
STAT: Within 1 hour of receipt
Routine: Within 2 hours of receipt