| Laboratory: | Clinical Biochemistry (POC (Point of Care) TEST) | ||||||||||||||||||||||||||||||||||||||||
| Test Name: |
Blood Gases - epoc - (B)
Test Code:
AGAS, CGAS, MGAS, VGAS
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| Clinical Information: |
Description: Blood gas testing measure blood oxygen, carbon dioxide, and pH to assess a patient’s ventilatory and/or acid-base status. Arterial blood gases are the gold standard for accurately assessing blood oxygen/ventilation.
Test Indications: This test is intended for the critically ill. Blood gas testing requested on ambulatory outpatients are not to be collected, except if ordered by a Medical Geneticist for a pediatric patient. ALL OTHER OUTPATIENT REQUESTS WILL BE CANCELLED. Recommendations: Emergency & in-patients only |
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| Collection Devices: |
Capillary blood gases must be collected in a balanced heparin capillary tube (FULL collection), capped, mixed, and tested within 5 minutes of collection.
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| Specimen Required: |
Whole Blood: 4.0 mL
Pediatric Whole Blood: 0.1 mL
Collection Information: Evacuated blood tubes must be FULL to maintain specimen stability. Specimens must remain capped until tested to avoid contamination with air.
Rejection criteria: presence of bubbles, clots, insufficient volume, arterial samples collected in vacutainers or with winged butterfly tubing, leaking specimens, and specimens not received within 30 minutes of collection.
Capillary samples must be tested at the bedside. Specimen Stability: Ambient: 30 minutes (Vacutainer, syringe); 5 minutes (capillary) Refrigerated: DO NOT REFRIGERATE Frozen: DO NOT FREEZE Do not submit specimens on ice.
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| Referral: |
Only available at sites which perform epoc testing on-site.
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| Requisition: | |||||||||||||||||||||||||||||||||||||||||
| Reference Values: |
Method of Analysis: Siemens epoc® Blood Analysis System, BGEM test card Amperometric: pO2, Lactate Potentiometric: pH, pCO2, Calculated parameters: % O2 saturation, Bicarbonate, Base Excess |
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| Availability: |
Daily or Stat
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| See Also: | |||||||||||||||||||||||||||||||||||||||||
| More Information: |
Interpretation & Assay Interferences: See attached epoc test interference document
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