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Test Code CGAS Blood Gases, Capillary

Important Note

Specimen must be sent to the lab immediately after collection.

Day(s) Test Set Up

Monday through Sunday

Specimen

Capillary blood from heel, finger or earlobe with a mixing wire/bar (flea), in two or three heparinized capillary tubes. Samples must be free of air bubbles or exess air.

 

Minimum volume:  2-3 safeCLINITUBES (capillary collection tubes)

Specimen stability:  30 minutes at room temperature

Reference Values

                    Arterial                    Venous                  Capillary
pH:            7.35 – 7.45            7.32 – 7.42                7.33 – 7.49
pCO2:      35 – 45 mmHg        42 – 55 mmHg       27.0 – 40.0 mmHg
pO2:         80-110 mmHg        25 – 40 mmHg       60.0 – 76.0 mmHg

HCO3:      22 - 26 mmol/L
ABE3:      -2.4  -  +2.3 mmol/L 
TCO2:      23 – 27 mmol/L
SBE
O2 SAT:  95 – 98%
SBC:       22 – 26 mmol/L
O2CT:     15 – 23 vol%
 

Performing Laboratory

MaineGeneral Medical Center

CPT Code

82803