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Test Code:
GLUC

Order Name:
FBG

 
Useful For:
Diagnosing and managing diabetes mellitus and other carbohydrate metabolism disorders including gestational diabetes, neonatal hypoglycemia, idiopathic hypoglycemia, and pancreatic islet cell carcinoma.
 
Methodology:
 Hexokinase/G-6-PDH
 
AliasesName:
Fasting  Blood Glucose, Serum
Fasting  Blood Sugar, Serum
FBS, Serum
Glucose, Serum
Sugar, Serum
 
 
 
Test Code:
GLUC

Order Name:
FBG

 
Patient Preparation:
  1. Patient should be fasting at least 8 hours. 
  2. Patient can drink water as usual.
  3. Patient who takes the antihypertensive drugs,can take it as usual.
 
Collection Specimen Or Container:
Blood/ Plain Blood (Red Top) 6 mL, 1 tube
 
Specimen Testing Type:
Serum, minimum volume 0.5 mL
 
Sub Mission Container:
Plastic vial
 
Specimen Stabillity:
Specimen Type Temperature Time
Serum (keep in original tube) Refrigerated, 2oC to 8oC 2 hours
Serum Refrigerated, 2oC to 8oC 7 days
Frozen, -20oC 3 months
 
 
 
Test Code:
GLUC

Order Name:
FBG

 
Schedule:
Tested daily (24 Hours)
 
 
Turnaround Time:
Specimen collected to reported within 1:30 Hours (90 Mins)
 
Performing Location:
Biochemistry, Laboratory Department
 
Specimen Retention Time:
5 days
 
 
 
Test Code:
GLUC

Order Name:
FBG

 
 
Clinical Information:
Blood glucose determinations are the most frequently performed clinical chemistry laboratory procedures, commonly used as an aid in the diagnosis and treatment of diabetes. Elevated glucose levels (hyperglycemia) may also occur with pancreatic neoplasm, hyperthyroidism, and adrenal cortical hyperfunction as well as other disorders. Decreased glucose levels (hypoglycemia) may result from excessive insulin therapy or various liver diseases.
 
Reference Value:
70-99 mg/dL
 
Interpretation:
Any of the following results, confirmed on a subsequent day, can be considered diagnostic for diabetes:
- Fasting plasma or serum glucose > or =126 mg/dL after an 8-hour fast
- 2-Hour plasma or serum glucose > or =200 mg/ dL during a 75-gram oral glucose tolerance test (OGTT)
- Random glucose >200 mg/dL, plus typical symptoms

Patients with "impaired" glucose regulation are those whose fasting serum or plasma glucose fall between 101 and 126 mg/dL, or whose 2-hour value on oral glucose tolerance test fall between 140 and 199 mg/dL. These patients have a markedly increased risk of developing type 2 diabetes and should be counseled for lifestyle changes and followed up with more testing. Indications for screening and testing include strong family history, marked obesity, history of babies over 9 pounds, and recurrent skin and genitourinary infections.

Glucose levels of 25 mg/dL or lower in infants younger than 1 week are considered to be potentially life threatening, as are glucose levels of 40 mg/dL or lower in infants older than 1 week.

Glucose levels of 400 mg/dL and higher are considered a critical value.
 
Clinical Reference:
  1. Manufacturer’s reagent package insert, Architect® Glucose Abbott Laboratories, Abbott Park IL 60064 USA, October 2012.
  2. http://www.diabetes.org/diabetes-basics/diagnosis(Retrieved: June 2018)
  3. http://www.mayomedicallaboratories.com (Retrieved: 01 Jan 2019)