Blood Gases, Venous

Orderable EAP code:

LAB00064

Billable EAP Codes:

80001721 x 1

CPT Codes:

82805 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 30 minutes
Urgent: 30 minutes
Extreme Emergency: 15 minutes

Test Schedule:

24 hours, 7 days a week.

Critical Values:

None

Specimen Requirements:

1 mL blood-venous heparinized syringe.

Stability: Whole blood up to 30 minutes at room temperature, and up to 1 hour on ice.

Pediatric Specimen Requirements:

0.3 mL in a 1 mL heparinized syringe

Reference Range:

 pH  7.35 to 7.45
 PCO2  35 to 50 mmHg
 PO2  30 to 55mmHg
 HCO3  22 to 28mmHg
 Base Excess  -3 to 3
 Total CO2  23 to 29 mmol/L

Comments:

Deliver to lab immediately. For manual transport, deliver on ice.

Synonyms:

pCO2
pO2
VBG

Blood Gases, Mixed Venous

Orderable EAP code:

LAB00111

Billable EAP Codes:

80001724 x 1

CPT Codes:

82805 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 30 minutes
Urgent: 30 minutes
Extreme Emergency: 15 minutes

Test Schedule:

24 hours, 7 days a week.

Critical Values:

None

Specimen Requirements:

1 mL of mixed venous blood in a heparinized syringe.

Stability: Whole blood up to 30 minutes at room temperature, and up to 1 hour on ice.

Pediatric Specimen Requirements:

0.3 mL in a 1 mL heparinized syringe. Deliver to lab immediately.

Reference Range:

 Component  Reference Range
 pH  7.32 to 7.41
 PCO2  45 to 52 mmHg
 PO2  35 to 40 mmHg
 HCO3  24 to 28 mmol/L

Comments:

Deliver to lab immediately. For manual transport, deliver on ice.

Blood Gases, Cord - Arterial or Venous

Orderable EAP code:

LAB101853 (Arterial), LAB101854 (Venous)

Billable EAP Codes:

80001725 x 1

CPT Codes:

82805 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 30 minutes
Urgent: 30 minutes
Extreme Emergency: 15 minutes

Test Schedule:

24 hours, 7 days a week.

Critical Values:

Arterial:
pH: Less than 7.1
PCO2: Greater than 70 mmHg

Venous:
pH: Less than 7.2
PCO2: Greater than 55 mmHg

Specimen Requirements:

1 mL of cord blood in a heparinized syringe.

Stability: Whole blood up to 30 minutes at room temperature, and up to 1 hour on ice.

Pediatric Specimen Requirements:

0.3 mL in a 1 mL heparinized syringe. Deliver to lab immediately.

Reference Range:

 Component   Venous Cord Blood  Arterial Cord Blood
 pH  7.21 to 7.45  7.10 to 7.38
 PCO2  27 to 55mmHg  33 to 73mmHg
 PO2  14 to 44mmHg  5 to 32 mmHg
 BaseExcess  No range has been established  -8 to 1
 HCO3-  12 to 29  17 to 27
 tCO2  No range has been established  No range has been established
 O2Sat  No range has been established  No range has been established

Comments:

Deliver to lab immediately. For manual transport, deliver on ice.

Blood Gases, Capillary

Orderable EAP code:

LAB00065

Billable EAP Codes:

80001722 x 1

CPT Codes:

82805 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 30 minutes
Urgent: 30 minutes
Extreme Emergency: 15 minutes

Test Schedule:

24 hours, 7 days a week.

Specimen Requirements:

1 mL blood in heparinized syringe.

Stability: Whole blood up to 30 minutes at room temperature, and up to 1 hour on ice.

Pediatric Specimen Requirements:

0.3 mL in a capillary tube. Tube must be filled to end.

Reference Range:

 Reference Range (applies to neonate samples only)  Critical Limits
 pH: 7.30 to 7.50  less than or equal to 7.25
 greater than or equal to 7.55
 PCO2: 30 to 69 mmHg  less than or equal to 20 mmHg
 greater than or equal to 70 mmHg
 PO2: 40 to 50 mmHg  less than or equal to 35 mmHg
 HCO3: none available
 TotalCO2: none available

Comments:

Deliver to lab immediately. For manual transport, deliver on ice.

Synonyms:

CBG
pCO2
pO2

Blood Gases, Arterial

Orderable EAP code:

LAB00068

Billable EAP Codes:

80001723 x 1

CPT Codes:

82805 x 1

Lab Section:

Core Lab

Includes:

pH, pC02, p02, HC03, Total C02

Turnaround Time:

Routine: 30 minutes
Urgent: 30 minutes
Extreme Emergency: 15 minutes

Test Schedule:

24 hours, 7 days a week.

Specimen Requirements:

1 mL blood in an arterial heparinized syringe.

Stability: Whole blood up to 30 minutes at room temperature, and up to 1 hour on ice.

Pediatric Specimen Requirements:

0.3 mL in a 1 mL heparinized syringe. Deliver to lab immediately.

Reference Range:

Reference Range

Critical Limits

 PH:

 0 to 2 months

 7.30 to 7.50

 Less than or equal to 7.10 

 Over 2 months

 7.37 to 7.44

 PCO2:

 0 to 2 months

 30 to 65 mmHg

 Over 2 months

 32 to 43 mmHg

 PO2:

 0 to 2 months

 50 to 75 mmhg

 2 months to 40 years 

 83 to 108 mmhg

 Over 40 years

 72 to 104 mmHg

 HC03:

 No age limit

 21 to 28 mmol/L

 Total CO2:

 No age limit

 22 to 28 mmol/L

 PaO2/FIO2Ratio:

 No age limit

 Greater than 300 mmhg 

 Base Excess:

 No age limit

 -2 to 2

 O2Sat:

 0 to 1 month

 40 to 90%

Comments:

Deliver to lab immediately. For manual transport deliver on ice.

Synonyms:

ABG
CO2 Total, whole blood
Carbon Dioxide, whole blood
pCO2
pO2

Bilirubin, Direct

Orderable EAP code:

LAB00070

Billable EAP Codes:

80001700 x 1

CPT Codes:

82248 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 2 Hours
Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Units:

mg/dL

Specimen Requirements:

4 mL blood in a GREEN top, lithium heparin tube. Protect specimen from light.

Stability: 
Serum/plasma is stable up to and including 3 days refrigerated at 4 degrees C in a serum separator tube.
Serum/plasma separated from the cells is stable up to and including 3 days at room temperature in the dark or up to and including 30 days refrigerated at 4 degrees C in the dark.

Pediatric Specimen Requirements:

0.5 mL in a 1.0 mL GREEN top, lithium heparin tube. Protect specimen from light.

Reference Range:

Less than or equal to 0.2 mg/dL

Synonyms:

Conjugated Bilirubin
Direct Bilirubin

Bilirubin Total

Orderable EAP code:

LAB00005

Billable EAP Codes:

80001699 x 1

CPT Codes:

82247 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 2 Hours
Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Units:

mg/dL

Critical Values:

Cord Blood: greater than or equal to 3.5 mg/dL
Neonates: greater than or equal to 15 mg/dL

Specimen Requirements:

4 mL blood in a GREEN top, lithium heparin tube. Protect specimen from light.

Stability: 
Serum/plasma is stable up to and including 3 days refrigerated at 4 degrees C in a serum separator tube.
Serum/plasma separated from the cells is stable up to and including 3 days at room temperature in the dark or up to and including 30 days refrigerated at 4 degrees C in the dark.

Pediatric Specimen Requirements:

0.5 mL in a 1.0 mL GREEN top, lithium heparin tube.

Reference Range:

 Up to 1 day old  1.4 to 8.7 mg/dL
 1 day to 2 days old  3.4 to 11.5 mg/dL
 2 days to 5 days old  1.5 to 12.0 mg/dL
 5 days to 150 years old  0.3 to 1.2 mg/dL

 

Benzodiazepine Screen, Urine

Orderable EAP code:

LAB00569

Billable EAP Codes:

80001660 x 1

CPT Codes:

80307 x 1

Lab Section:

Core Lab

Includes:

Benzodiazepine

Turnaround Time:

Routine: 2 Hours

Test Schedule:

24 hours, 7 days a week.

Specimen Requirements:

6 mL urine in a sample cup.

Pediatric Specimen Requirements:

6 mL urine in a sample cup.

Reference Range:

Negative

Comments:

Benzodiazepine detected in urine at levels greater than or equal to 200 ng/mL are considered "positive."

"Positive" results are NOT confirmed by an alternate method. See: Summary of Compounds that may be detected by OHSU Drugs of Abuse Screening Methods. (Opens in a new window)

Synonyms:

Drug Screen
Drugs of Abuse
Urine Drug Screen

Basic Metabolic Set

Orderable EAP code:

LAB00368

Billable EAP Codes:

80001654 x 1

CPT Codes:

80048 x 1

Lab Section:

Core Lab

Includes:

Na, K, Cl, BUN, Creat, Glu, CO2, Ca

Turnaround Time:

Routine: 2 Hours
Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Critical Values:

See individual test listings for critical values.

Specimen Requirements:

4 mL blood in a GREEN top, lithium heparin tube.

Pediatric Specimen Requirements:

0.5 mL in a 1.0 mL GREEN top, lithium heparin tube.

Reference Range:

See individual test listings for reference ranges.

Synonyms:

Basic
BMP
BMS
BMT

Barbiturates Screen, Urine

Orderable EAP code:

LAB00574

Billable EAP Codes:

80001665 x 1

CPT Codes:

80307 x 1

Lab Section:

Core Lab

Includes:

Barbituates

Turnaround Time:

Routine: 2 Hours
Urgent: 1 Hour with verbal request

Test Schedule:

24 hours, 7 days a week.

Specimen Requirements:

6 mL urine cup.

Pediatric Specimen Requirements:

6 mL urine in sample cup or in 10 mL RED top tube.

Reference Range:

Negative

Comments:

Barbiturates detected in urine at levels greater than or equal to 200 ng/mL are considered "positive."

"Positive" results are not confirmed by alternate method. See: Summary of Compounds that may be detected by OHSU Drugs of Abuse Screening Methods. (Opens in a new window)

Synonyms:

Drug Screen
Drugs of Abuse
Urine Drug Screen

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