subject: Information About Basic Metabolic Panel - Imc [print this page] Basic Metabolic Panel Basic Metabolic Panel
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Anion Gap
Anion Gap is the difference between the measured anions in the blood. Sodium is the primary measured cation and C1 and HCO3 are the primary measured anions, therefore AG= NA-(C1+HCO3). Used to classify metabolic acidosis.
BUN
Measurement of urea nitrogen found in the blood. A waste product of protein breakdown. Helpful in assessing kidney function.
Calcium
Element. Sum of ionized calcium plus protein bound calcium. Important in cellular transport mechanisms. The most common reason for low calcium is hypoalbuminemia.
Carbon Dioxide
CO2 content is a measurement of bicarb, carbonic acid, and dissolved CO2 gas, >90% is bicarb (HCO3). The terms bicarbonate and total carbon dioxide are often used interchangeably. Although bicarbonate is 1-2 mmol/L lower than total carbon dioxide, this difference is not clinically significant.
Chloride
Extracellular electrolyte. Levels usually increase or decrease in concert with serum sodium.
Creatinine
Muscle breakdown product, proportional to muscle mass. Normal BUN/ Creatine ratio 10:1; dehydration 15-20:1; renaldisease 10:1; pre/ post renal> 10:1. Creatinine clearance can be estimated by the following formula: cc males= [(140-age(yr) x (weight (Kg))]/72 x serum creatinine; for woman multiple above results x 0.85.
Glucose
A sugar. Basic energy source for cells. Fasting 100-125 mg / dL indicates Impaired Fasting Glucose (pre-diabetes). Fasting> 125 mg/dL indicates diabetes mellitus.
Potassium
Intracellular cation, functions as an electrolyte. Important in maintaining acid/base balance. Measurement is of the serum (non-cellular) level.
Sodium
Cation found mainly in the extracellular fluid. Used in the evaluation of hydration states Hyponatremia is due to excess body water. Volume status. Needs to determine first in the workup of hypernatremia.
