A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Calcium, Total, Plasma or Serum
Test CodeCA - NOCO
CPT Codes
82310
Includes
This test is included in BMPGFR – Basic Metabolic Panel, CMPGFR - Comprehensive Metabolic Panel and RFPGFR-Renal Function Panel.
Preferred Specimen
1.0 mL plasma from Green top (Lithium Heparin)
Minimum Volume
0.5 mL
Note: For neonate requirements see Neonate Minimum Blood Volumes
Note: For neonate requirements see Neonate Minimum Blood Volumes
Other Acceptable Specimens
1.0 mL serum from Serum Gel or Red Top
Specimen Stability
Specimen Type | Temperature | Time |
Plasma Li Hep | Ambient | 5 days |
Plasma Li Hep | Refrigerate | 5 days |
Plasma Li Hep | Frozen | 8 months |
Serum SST | Ambient | 5 days |
Serum SST | Refrigerate | 5 days |
Serum SST | Frozen | 8 months |
Red Top – Separated* | Ambient | 5 days |
Red Top – Separated* | Refrigerate | 5 days |
Red Top – Separated* | Frozen | 8 months |
*Centrifuge and aliquot into a plastic vial.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
For NCMC only: Gross lipemia if plasma - Serum specimen needed if Grossly Lipemic
For NCMC only: Gross lipemia if plasma - Serum specimen needed if Grossly Lipemic
Methodology
Photometry
Setup Schedule
Monday through Sunday; Continuously
Report Available
Same day
Reference Range
Summit View
8.5 - 10.1 mg/dL
Critical value (automatic call-back): <6.6 mg/dL or >12.9 mg/dL
McKee, BFCMC & NCMC
0-4 years: 9.1 – 10.9 mg/dL
4-150 years: 8.8 – 10.4 mg/dL
Critical value (automatic call-back): <6.6 mg/dL or >12.9 mg/dL
8.5 - 10.1 mg/dL
Critical value (automatic call-back): <6.6 mg/dL or >12.9 mg/dL
McKee, BFCMC & NCMC
0-4 years: 9.1 – 10.9 mg/dL
4-150 years: 8.8 – 10.4 mg/dL
Critical value (automatic call-back): <6.6 mg/dL or >12.9 mg/dL
Clinical Significance
Calcium is most abundant mineral element in body with about 99 percent in bones primarily as hydroxyapatite. Remaining calcium is distributed between various tissues and extracellular fluids where it performs a vital role for many life sustaining processes. Among extra skeletal functions of calcium are involvement in blood coagulation, neuromuscular conduction, excitability of skeletal and cardiac muscle, enzyme activation, and preservation of cell membrane integrity and permeability.
Serum calcium levels and hence body content are believed to be controlled by parathyroid hormone (PTH), calcitonin, and vitamin D. Imbalance in any of these modulators leads to alterations of body and serum calcium levels. Increases in serum PTH or vitamin D are ususally associated with hypercalcemia. Increased serum calcium levels may also be observed in multiple myeloma and other neoplastic diseases. Hypocalcemia may be observed in hypoparathyroidism, steatorrhea, nephrosis, and pancreatitis.
Serum calcium levels and hence body content are believed to be controlled by parathyroid hormone (PTH), calcitonin, and vitamin D. Imbalance in any of these modulators leads to alterations of body and serum calcium levels. Increases in serum PTH or vitamin D are ususally associated with hypercalcemia. Increased serum calcium levels may also be observed in multiple myeloma and other neoplastic diseases. Hypocalcemia may be observed in hypoparathyroidism, steatorrhea, nephrosis, and pancreatitis.
Performing Laboratory
Banner Fort Collins Medical Center Laboratory
Mckee Medical Center Laboratory
North Colorado Medical Center Laboratory
Summit View Laboratory