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Test Name:
Blood Gases, Capillary
- SBMF No:
23657 - Performance Lab Name:
Hospital Lab - Test Mnemonic:
ABG CAP - ABN:
Not required - CPT Code:
82803 - LOINC Code:
2744-1; 2019-8; 2704-5; 20565-8; 1960-4; 3152-6 - Test Includes:
pH
PCO2
PO2
Carbon Dioxide (calculated)
Bicarbonate (calculated) - Also Known As:
Capillary Blood Gases - Also See:
23100 Blood Gases, Arterial - Spec Type:
Whole blood - Spec Container:
Heparinized capillary tubes - Pref Vol:
Two (2) capillary tubes (140 µL capacity) - Min Vol:
One capillary tube (140 µL capacity) - Fasting:
No - Patient Prep:
Warm site of puncture for at least 3 minutes
Document amount/mode of O2 therapy on requisition
If not receiving oxygen, document therapy “room air”
Allow at least 20 minutes to elapse after any change in O2 therapy before obtaining specimen - Spec Collect:
Follow approved procedure for collection of arterialized capillary sample by heelstick puncture (or finger stick on patient one year or older) - Spec Process:
Immediately mix contents of capillary tubes
Transport specimen on bed of ice slush (ice and water mixture) - Spec Store Transport:
Transport in ice slush - Spec Stability:
1 hour on bed of ice slush (ice and water mixture) - Spec Reject:
Not iced – greater than 30 minutes room temperature
Contains air or clots
Received more than 1 hour after collection - Methodology:
Ion-selective Electrode (ISE) - Use:
Evaluate respiratory function, lung disease, and acid-base balance - Reference Range:
pH: 7.37-7.44
PCO2: 31-45 mmHg
CO2 content: 21-30 mEq/L - Day Run:
Sun-Sat (daily) - Time Run:
As received - Time Reported:
Routine: 1 hour
STAT: 20 minutes - Test Type:
GAS-LYTE
