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Glucose Random
MessagePerformed in Chemistry
Test Code
GLUC
CPT Codes
82947
Preferred Specimen
Green Top LiHep, Plasma
WyMCC - SST
WyMCC - SST
Other Acceptable Specimens
EDTA, Gray NaF, KF, SST, Red
Instructions
Separate from cells within 1/2 hour
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Collected in an outdated/expired tube
Hemolyzed, icteric or lipemic
Contaminated
Hemolyzed, icteric or lipemic
Contaminated
FDA Status
FDA Approved
Setup Schedule
Daily, Sunday through Saturday
Report Available
Less than 4 hours
Clinical Significance
Glucose is major carbohydrate present in peripheral blood. Oxidation of glucose is major source of cellular energy in body. Glucose derived from dietary sources is converted to glycogen for storage in liver or to fatty acids for storage in adipose tissue. Concentration of glucose in blood is controlled within narrow limits by many hormones, most important of which are produced by pancreas. Most frequent cause of hyperglycemia is diabetes mellitus resulting from a deficiency in insulin secretion or action. Number of secondary factors also contribute to elevated blood glucose levels. These include pancreatitis, thyroid dysfunction, renal failure and liver disease. Hypoglycemia is less frequently observed. A variety of conditions may cause low blood glucose levels such as insulinoma, hypopituitarism or insulin induced hypoglycemia. Glucose measurement in cerebrospinal fluid is used for evaluation of meningitis, neoplastic involvement of meninges and other neurological disorders