| Test Name: |
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Carbon Monoxide
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| Test Code(s): |
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CO / GM2350
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| CPT Code(s): |
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82375
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| Methodology: |
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Spectrophotometry
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| Clinical Significance: |
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Test measures carboxyhemoglobin. The level of carboxyhemoglobin is a measure of the degree of carbon monoxide exposure.
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| Days Performed: |
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Daily, 24 hours.
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| Turnaround Time: |
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Stat: Less than 30 minutes. All requests processed stat.
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Specimen Requirements
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| Specimen: |
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Arterial, venous, or capillary
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| Patient Preparation: |
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None. For venous samples on outpatients, send patient to UWHC Outpatient Phlebotomy to be drawn.
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| Collection Instructions: |
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Radiometer "PICO"® syringes must be free of clots. Two full Radiometer capillaries free of clots are needed for capillary blood.
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| Collection Container: |
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Preferred: Radiometer PICO® syringe
Also Acceptable:
2 full Radiometer capillary tubes,
Green cap with yellow ring (PST),
Green top
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| Collection Volume: |
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Preferred: 1.5 mL
Pediatrics: 0.5 mL
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| Sample Analyzed: |
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Whole Blood
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| Volume Required: |
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Preferred: 1.5 mL
Pediatrics: 0.5 mL
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| Specimen Transport: |
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Transport specimen to UWHC Core Laboratory (B4/220) immediately.
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| Unacceptable Criteria: |
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Clotted specimens, or specimens past stability time are not acceptable.
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| Stability: |
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Ambient: 24 hours
Refrigerated: 24 hours
Frozen: Not acceptable
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Interpretation
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Reference Interval:
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0 day and up: 0-2% (smokers may be higher)
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| Critical Calls: |
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View
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