Test Details
Glucose
Glucose is the major short term source of energy for the body, and is obtained from the diet, as well as being produced in the liver.
Methodology
Enzymatic
Patient Preparation
9 hour fast prior to collection. Patient may drink water only.
Preferred Specimen
1.0 mL serum (0.5 mL minimum) collected in serum separator tube (SST/Tiger Top). Allow sample to clot for 30 minutes and centrifuge immediately thereafter.
Alternate Specimen
Dried Blood collected on an AdvanceDx 100 card
Transport Temperature
Refrigerated (ship on frozen cold packs)
Stability
Refrigerated: 3 days
Lab Values
Glucose
- Normal: 70-99 mg/dL
- Borderline: 100 – 125 mg/dL
- Increased Risk: <70; >125 mg/dL
- Alert: <40; >500 mg/dL
Clinical Significance
Glucose
A fasting glucose level ≥ 125 mg/dL indicates the presence of diabetes mellitus, associated with a significantly increased risk of developing CVD, stroke, peripheral vascular disease, kidney failure, neuropathy, and retinopathy. The test needs to be confirmed by also having an elevated HbA1c level. Clinically significant hypoglycemia is defined as blood glucose <54 mg/dL.1
References:
- American Diabetes Association. Standards of medical care in diabetes. Diabetes Care-2018. Diabetes Care. 2018;41(Suppl 1):S55-S64.
Treatment Options
Glucose
- Lifestyle modification
- Glucose lowering medications
- Soluble Fiber
