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Test Code:
090-20-0500-01

Order Name:
GTT Preg. GDM, DEX 100 g. ( Fasting, 1, 2, 3 hrs.)

 
Useful For:
Diagnosis and screening for diabetes or prediabetes.
 
Methodology:
Hexokinase/ G-6-PDH
 
Test List In Profile:
Glucose (Blood)
Glucose (Urine) ; Qualitative 
 
AliasesName:
Glucose Tolerance Test
Oral Glucose Tolerance Test (OGTT)
Sugar
 
 
 
Test Code:
090-20-0500-01

Order Name:
GTT Preg. GDM, DEX 100 g. ( Fasting, 1, 2, 3 hrs.)

 
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 and
Urine, Clean container 
 
Specimen Testing Type:
Serum, minimum volume 0.5 mL
 
Sub Mission Container:
Plastic vial
 
Rejection Criteria:
Hemolysis: 4+ reject
Lipemia: 4+ reject
Icterus: 4+ reject
 
Specimen Stabillity:
Specimen Type Temperature Time
Serum Refrigerated, 2oC to 8oC 7 days
Frozen, -20oC 3 months
Urina Refrigerated, 2oC to 8oC 24 hours

 
 
 
 
Test Code:
090-20-0500-01

Order Name:
GTT Preg. GDM, DEX 100 g. ( Fasting, 1, 2, 3 hrs.)

 
Method detail:
Hexokinase/ G-6-PDH
 
Schedule:
Tested daily (24 hours)
 
Turnaround Time:
Collected specimen to report within 1.5 hours (90 mins)
 
Performing Location:
Chemistry, Laboratory Department Tel. 13224
 
Specimen Retention Time:
5 days
 
 
 
Test Code:
090-20-0500-01

Order Name:
GTT Preg. GDM, DEX 100 g. ( Fasting, 1, 2, 3 hrs.)

 
 
Clinical Information:
The OGTT evaluates how the body manages glucose after a meal. Glucose is a type of sugar produced when the body breaks down carbohydrates consumed in food. Some of the glucose will be used for energy; the rest will be stored for future use. The amount of glucose in your blood is controlled by the hormones insulin and glucagon. If you have too much, the pancreas secretes insulin to help cells absorb and store glucose. If you have too little, the pancreas secretes glucagon so that stored glucose can be released back into the bloodstream. Under normal circumstances, the body will be able to maintain the ideal balance of blood glucose. However, if any parts of the system are impaired, glucose can rapidly accumulate, leading to high blood sugar (hyperglycemia) and diabetes. The OGTT is a highly sensitive test that can detect imbalances that other tests miss. The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) recommends the OGTT for the following purposes: Screening and diagnosis of prediabetes or impaired glucose tolerance (IGT) Screening and diagnosis of type 2 diabetes Screening and diagnosis of gestational diabetes The OGTT is only used for diagnosis and screening. It has no role in the monitoring of diabetes or prediabetes. Among its other uses, the OGTT can be ordered to diagnose reactive hypoglycemia (in which blood sugar drops after eating), acromegaly (an overactive pituitary gland), beta cell dysfunction (in which insulin is not being secreted), and rare disorders affecting carbohydrate metabolism (such as hereditary fructose intolerance).
 
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)
  4. https://www.verywellhealth.com (Retrieve: 9 Mar 2019)