Home
HelpEpic Test Code POC215 Blood Gas POC iSTAT (Cord, Venous, Mixed Venous)
Performing Location(s)
BMC,FOX
Specimen Type
Cord Blood (must be drawn by nursing) or venous blood.
Mixed venous must be drawn by Respiratory Therapy or Nursing.
Preferred Container
Heparin coated syringe or capillary, or Green top tube (prefer Dark Green top tube)
Alternate Container
Unheparinized syringe for POC immediate testing only
Volume Required
2.0mL
Minimum Volume
0.5mL
Transportation Needs
Performed as POC test at MIB as primary method.
As backup (Fox) deliver to the laboratory at room temp within 30 minutes.
Reference Values
| Hemoglobin Reference Ranges | |||||
| Population | Units | Reference Range | Low Critical Value | ||
| < 1 month | g/dL | 13.0 - 19.0 | < 7.0 | ||
| 1 month - 5 month | g/dL | 11.0 - 17.0 | < 7.0 | ||
| 5 month - 2 years | g/dL | 11.0 - 14.0 | < 7.0 | ||
| 2 years - 6 years | g/dL | 11.0 - 13.0 | < 7.0 | ||
| 6 years - 12 years | g/dL | 11.0 - 15.0 | < 7.0 | ||
| Female > 12 years | g/dL | 11.5 - 15.5 | < 7.0 | ||
| Male > 12 years | g/dL | 11.5 - 18.0 | < 7.0 | ||
|
Analyte |
Units |
Population |
Venous |
Cord:Arterial & Venous |
Capillary |
|
pH |
(none) |
All populations |
7.33-7.43 |
7.20-7.45 CV <7.10 |
7.35-7.45 |
|
pCO2 |
mmHg |
All populations |
40-50 |
38-54 |
32-48 |
|
pO2 |
mmHg |
All populations |
29-49 |
10-24 |
80-90 |
|
HCO3 |
mmol/L |
All populations |
22-29 |
15-25 |
22-27 |
|
TCO2 |
mmol/L |
All populations |
22-34 |
20-34 |
33-43 |
|
O2 Saturation |
% |
All populations |
60-85 |
60-98 |
90-100 |
|
Base Excess |
mmol/L |
All populations |
<3 |
(-6.2) –(-0.5) |
see below by age |
| <1 wk | (-10) - (-2) | ||||
|
1 wk - 1 yr |
(-7) - (+1) |
||||
|
1 - 16 yr |
(- 4) - (+2) |
||||
|
> 16 yr |
(- 3) - (+3) |
Includes
(Dependent upon cartridge)
Measured- pH, pCO2, pO2
Calculated- HCO3, TCO2, BE, O2 Sat.
Reasons for Rejection
Mislabeled or unlabeled specimen
Clotted Specimen
Specimen not analyzed within 30 minutes at room teperature or 60 minutes on ice.
Specimen contaminated with Room Air (Bubbles in syringe or uncapped)
Additional Information
Requisition must indicate source (i.e. venous) and time sample is drawn.
Days of Analysis
All
Methodology
pH and pCO2: direct potentiometry
pO2: amperometrically
CPT Code(s)
pH, pCO2, pO2: 82803
Last Updated
7-Dec-22 MS