Calcium, Ionized, Prisma
| Sunquest Code: | ICAP | ||
| Epic Code: | LAB3097 | Epic Name: | Calcium Ionized, Whole Blood Prisma |
| Synonyms: | Prisma/Prismaflex Ionized Calcium; Circuit Ionized Calcium | ||
| Methodology: | Selective electrode | ||
| Turnaround Time: | Performed and reported 24 hours/day. | ||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 1 mL |
| Minimum\Peds Volume: | 0.5 mL (3 mL syringe); 0.2 mL (tuberculin syringe); 0.1 (capillary tube) |
| Container: | Dry heparin syringe (Capillary (lithium heparin) gas tube, Green (lithium heparin, gel), Green (lithium heparin) on ICE, Green (sodium heparin, no gel)) |
| Collection Instructions: | Specimens should be free of air bubbles. If collecting in green (heparin) tube, do not remove stopper. |
| Causes for Rejection: | Whole blood specimen not received in laboratory within 4 hours of collection. |
Processing and Shipping
| Specimen Processing: | Whole blood. Do not process. Do not store. Maintain anaerobically and analyze within 4 hours. If specimen has been exposed to air, analyze within 1 hour if pH is 7.35-7.45; otherwise recollect. |
| Stability: | Whole blood samples are stable for 4 hours at room temperature if maintained anaerobically. SI Unit Conversion Factors: mg/dL x .25 mmol/L. |
| Test Performed at or Referral Lab | Chemistry (UMMC-East Bank, Southdale, UMMC/UMMCH-West Bank) |
Interpretive
| Critical Range: | 0-11 mo: Less than 3.5 mg/dL and greater than 7.0 mg/dL; 1 y & older: Less than 3.0 mg/dL and greater than 7.0 mg/dL |
| Reference Range: | 0-11 mo: 5.1-6.3 mg/dL; 1 year and older: 4.4-5.2 mg/dL |
| Use: | Monitor the circuit ionized calcium of patients anticoagulated with citrate. |
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