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Test Code COMP or LAB17 Comprehensive Metabolic Panel, Serum or Plasma

Profile Information

Test ID Reporting Name Available Separately? Always Performed?
GLUC Glucose Y Y
BUN BUN Y Y
CRET Creatinine Y Y
BCR BUN/Creat Ratio N Y
EGFR eGFR Y, with creatinine Y
NA Sodium Y Y
K Potassium Y Y
CL Chloride Y Y
CO2 CO2 Y Y
AGAP Anion Gap Y Y
CA Calcium Y Y
TP Protein, Total Y Y
ALB Albumin Y Y
GLOB Globulin N Y
AGR Albumin/Globulin Ratio N Y
AST/SGOT AST Y Y
ALT/SGPT ALT Y Y
ALKP Alkaline Phosphatase Y Y
TBIL Bilirubin, Total Y Y

Specimen Requirements

Container Type:

Optimal: Gold or Mint*

*For STAT requests

Acceptable: Red or Green
Optimal Collection Volume: 

4.5 mL; full tube
Specimen Minimum Volume:
  • Adults: 1 mL whole blood
  • Neonates: 1 microtainer (400-600 uL) and 1 capillary gas tube
Collection Instructions:

Gently invert sample 5-6 times after collection.
Specimen Transport:

Refrigerate
Processing Instructions: 

1. If serum, allow the sample to clot for 30 minutes.

2. Centrifuge specimen within 2 hours of collection.

3. After centrifugation, specimen tubes without a gel barrier should have the serum or plasma aliquoted to a false bottom container.

4. Keep serum/plasma refrigerated until testing can be performed.

Specimen Stability

Specimen Type Temperature Time
Serum* Room Temperature 8 hours
Refrigerated 3 days

*Note: Heparinized plasma in gel separator tubes is less stable than serum and is only suitable for add-on testing up to 2 days following sample collection.

Specimen Rejection Criteria

Hemolysis Mild OK; Moderate OK; Gross Reject
Lipemia Mild OK; Moderate OK; Gross Reject
Icterus Mild OK; Moderate OK; Gross Reject
Other Quantity not sufficient

Useful For

Routine health monitoring or patient monitoring while hospitalized for information regarding metabolism, including the current kidney status, electrolyte, and acid/base balance, and blood glucose levels.

Methodology

Roche Cobas

  • NA, K, CL - Potentiometric, indirect ion-selective electrode
  • Spectrophotometric

Reference Ranges

Test ID Reference Range and Reporting Units
BCR 6-20 (ratio)
EGFR > 60 mL/min
NA* 135-145 mmol/L
K* 3.5-5.3 mmol/L
CL 98-108 mmol/L
CO2 23-32 mmol/L
AGAP 7-16 mmol/L
CA* 8.6-10.3 mg/dL
ALB 3.5-5.0 g/dL
GLOB 2.0-3.9 g/dL
AGR 1.0-2.7
ALT Male: 6-45 U/L
Female: 6-37 U/L

 

Age-specific reference ranges are below for GLUC, BUN, CRET, TP, AST, ALKP, TBIL

 

Glucose*

Age

Reference Range and Reporting Units
Newborn to 3 months 40-115 mg/dL
3-6 months 50-115 mg/dL
Adults (> 6 months) Normal: 70-99 mg/dL
Impairing fasting: 100-125 mg/dL
Abnormal: > 125 mg/dL

 

BUN

Age

Reference Range and Reporting Units
< 1 year 4-19 mg/dL
1-17 years 5-18 mg/dL
18-59 years 6-20 mg/dL
> 60 years 8-23 mg/dL

 

CRET*

Age

Reference Range and Reporting Units
Newborns (1-4 days) 0.30-1.00 mg/dL
Infants (5 days to 12 years) 0.20-0.70 mg/dL
Adolescents (12-17 years) 0.50-1.00 mg/dL
Males 0.70-1.30 mg/dL
Females 0.60-1.10 mg/dL

 

TP

Age Reference Range and Reporting Units
Newborn to 1 week 4.6-7.0 g/dL
1 week to 7 months 4.4-7.6 g/dL
7 months to 1 year 5.1-7.3 g/dL
1-2 years 5.6-7.5 g/dL
3-18 years 6.0-8.0 g/dL
Adult (ambulatory) 6.4-8.3 g/dL

 

AST

Age Reference Range and Reporting Units
Newborn to 1 month 20-80 U/L
1 month to 13 years 8-60 U/L
Adults (> 13 years) 0-37 U/L

 

ALKP

Note: Reference ranges were revised on 1/5/2022. Please see the December 2021 LabWire for details.

 

Male & Female

Age Reference Range and Reporting Units
0 - 14 day 83-248 U/L
15 days to less than 1 year 122-469 U/L
1 year to less than 10 years 142-335 U/L
10 years to less than 13 years 129-417 U/L

Male

Age Reference Range and Reporting Units
13 to less than 15 years 116-468 U/L
15 to less than 17 years 82-331 U/L
17 to less than 19 years 55-149 U/L
> 19 years 40-129 U/L

Female

Age Reference Range and Reporting Units
13 to less than 15 years 57-254 U/L
15 to less than 17 years 50-117 U/L
> 17 years 35-117** U/L

**Updated from 35-104 U/L in October 2022

 

TBIL*

Age Reference Range and Reporting Units
Adults and children (> 3 months) < 1.2 mg/dL
0 to 1 day 2.0-6.0 mg/dL
1 to 3 days 6.0-10.0 mg/dL
3 days to 1 month 4.0-8.0 mg/dL
1 month up to 3 months 0.0-1.2 mg/dL

* Please click the Bronson Critical Values link to view Critical Values

Day(s) Performed

24/7

Expected TAT

Same day

Performing Laboratory

Bronson Laboratory, Chemistry - Kalamazoo, Battle Creek, Paw Paw, South Haven

Sample Retention Time

7 days

CPT Code

80053

LOINC Code

24322-0

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