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Test Code BLOD0528 Basic Metabolic Panel

Useful For

A baseline look at metabolism, including kidney function, electrolyte and fluid balance, glucose levels, and calcium.

Profile Information

Test Code Test Name Methodology



BLOD0001 Blood Urea Nitrogen (BUN) Urease with Glutamate Dehydrogenase (GLDH)/Bichromatic Rate Yes
BLOD0558 Creatinine Kinetic Alkaline Picrate (Jaffe)/Bichromatic Rate Yes
Estimated glomerular filtration rate (eGFR)* Calculation
N/A BUN/Creatinine Ratio Calculation No
BLOD0553 Calcium o-Cresolphthalein-Complexone/Bichromatic End point Yes
BLOD0555 Chloride Integrated Multisensor Technology (IMT), Indirect/Ion Selective/Diluted/Indirect Potentiometric Yes
BLOD0554 Carbon Dioxide (CO2) Enzymatic/Bichromatic End point Yes
BLOD0571 Sodium

Integrated Multisensor Technology (IMT)/Ion Selective/Diluted/Indirect Potentiometric

BLOD0570 Potassium

Integrated Multisensor Technology (IMT)/Ion Selective/Diluted/Indirect Potentiometric

N/A Anion Gap Calculation No
BLOD0006 Glucose Hexokinase/Ultraviolet (UV)/Bichromatic End point Yes

* for all patients 18 years and older

Performing Laboratory

Bozeman Health Laboratory Services

Specimen Requirements

Specimen Type: Plasma or serum
Container/Tube: Light-green top (lithium heparin gel), red top, or gold top
Specimen Volume: 1 mL
Specimen Minimum Volume: 0.5 mL 
Collection Instructions:

1. Do not uncap tube once specimen is drawn.

2. Avoid hemolysis.

3. Send specimen in original tube.

4. Label specimen as plasma or serum.

5. Forward promptly.

Additional Information: Hemolyzed specimen may give incorrectly elevated potassium results. Intracellular potassium concentration is 30-fold to 50-fold greater than that of extracellular serum or plasma.

Specimen Transport Temperature


Specimen Stability


Specimen Type Temperature Time
Plasma or Serum Ambient 8 hours
  Refrigerated 3 days

1 month


Reference Values

See individual test listings.


BUN/Creatinine Ratio:

The ratio of BUN to creatinine is usually between 10:1 and 20:1. An increased ratio may be due to a condition that causes a decrease in the flow of blood to the kidneys, such as congestive heart failure or dehydration. It may also be seen with increased protein, from gastrointestinal bleeding, or increased protein in the diet. The ratio may be decreased with liver disease (due to decrease in the formation of urea) and malutrition.

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding