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Test Code BMP Basic Metabolic Panel

Additional Codes

Epic Order Code: LAB15
Sunquest Order Code: BMP


Specimen Required

Patient Preparation:

8-12 hour fast is not required, but is recommended. Indicate patient's fasting status on order request form.

Container Type:

Optimal: Gold Top

Acceptable: Mint (preferred for STAT requests), Red Top or Green Lithium Heparin.


Optimal Collection Volume: 

4.5 mL; Full Tube

Collection Instructions:

Gently invert sample 5-6 times after collection.

Processing Instructions: 

1. Allow serum sample to clot for 30 minutes.

2. Centrifuge specimen within 2 hours of collection.

3. Specimen tubes without a gel barrier should have the serum or plasma aliquoted to a false bottom container after centrifugation.

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

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.

Profile Information

Test ID Reporting Name Available Separately Always Performed
GLUC Glucose Yes Yes
BUN Urea Nitrogen Yes Yes
CRET Creatinine Yes (CREA) Yes
BCR Bun/Creat Ratio No Yes
EGFR Est Glom Filt Rate No Yes
NA Sodium Yes Yes
K Potassium Yes Yes
CL Chloride Yes Yes
CO2 CO2 Yes Yes
AGAP Anion Gap No Yes
CA Calcium Yes Yes

Method Name

Ion Selective, Spectrophotometric

Stability Information

Serum*, Room Temperature - 8 hours

Serum*, Refrigerated - 7 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.

Rejection Due To

Hemolysis Mild OK; Moderate OK; Gross Reject
Lipemia Mild OK; Moderate OK; Gross Reject
Icterus Mild OK; Moderate OK; Gross Reject
Other N/A


Post Processing Specimen Type

Preferred: Serum

Alternate: Plasma

Specimen Minimum Volume

Collecting minimum volumes can result in a need for sample recollection, and/or a delay in results. Minimum volumes are subjective and cannot account for all aspects of specimen and testing needs. Refer to the Specimen Required section for optimal volumes for laboratory specimens. Contact the Bronson Laboratory if complex collection exceptions occur that require more information.


Minimum Volume: 0.5mL whole blood, 0.25mL serum
Neonate Volume: 1 Microtainer (400-600 uL) and 1 capillary blood gas tube

Performing Laboratory

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

Day(s) and Time(s) Performed


Reference Values

Test ID Reference Range Units
GLUC 0-6 Months: 40-115
Adults: 70-99
BUN <1 year: 4-19
1-17 years: 5-18
18-59 years: 6-20
>60 years: 8-23
CRET Newborns (1-4 days): 0.30-1.00
Infants (5 days-12 years): 0.20-0.70
Adolescents (12-17 years): 0.50-1.00
   Males: 0.70-1.30 mg/dL
   Females: 0.60-1.10 mg/dL
BCR 6-20  ratio


* See December 2020 LabWire for EGFR information

NA 135-145 mmol/L
K 3.5-5.3 mmol/L
CL 98-108 mmol/L
CO2 23-32 mmol/L
AGAP       9-18 mmol/L   
CA 8.6-10.3 mg/dL

LOINC Code Information


CPT Code Information


Sample Retention Time

7 days