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Glucose, 1 hr OB
Test CodeLAB6283
Alias/See Also
GLU1OB; GL1OB; Glucose Tolerance, 1 hour Obstetric
CPT Codes
82950
Includes
Glucose 1 draw post loading dose (50 mg)
Preferred Specimen
3 mL plasma (preferred) Grey Top NA Fluoride
Patient Preparation
Administer 50g glucola otherwise unless specified by physician.
Fasting if Needed (as directed by their provider) – document in order comments or collection questions.
For small adults weighing less than 95 Lbs. refer to procedure
Adjusting the Amount (Dose) of the Glucose Drink powerdms.com/docs/730099
and contact a Clinical Laboratory Scientist (CS) or a Pathologist.
Patient should NOT be allowed to leave the area of the duration of the testing, unless specifically instructed by their physician , or if performing a post-prandial tolerance test.
The glucose drink must be completely consumed within 5 minutes.
Glucola® contains corn syrup, if the patient has a corn allergy refer them to the ordering provider.
We will accept Glucose Tolerance drinks brought in by the patient if the drink specifies the dose of glucose which matches the test
being done and is already approved by their physician to use. The glucose load sample must be in liquid form and any mixing of the sample must be performed by the patient prior to arriving for collection. Please note the drink and patients' statement regarding their physician approving the drink in comments.
Minimum Volume
0.5 mL
Other Acceptable Specimens
Alternate Specimen: serum (SST).
Instructions
Collect 1 hour after glucose load administration. Administer 50g glucola otherwise unless specified by physician.
Fasting if Needed (as directed by their provider) – document in order comments or collection questions.
Collect a Grey Top (NA Fluoride)
Refrigerate within 4 hours of collection
Fasting if Needed (as directed by their provider) – document in order comments or collection questions.
Collect a Grey Top (NA Fluoride)
Refrigerate within 4 hours of collection
Transport Temperature
Send Refrigerated (2-8C)
Specimen Stability
Stable refrigerated for 3 days.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Insufficient quantity; failure to follow stability requirements; gross hemolysis
Methodology
Slide technology using the glucose oxidase reaction
Setup Schedule
Daily
Report Available
Within 24hrs; STAT 60 minutes
Reference Range
65-140 mg/dL ; Critical Values: Less than 50 or greater than 450 mg/dL
Clinical Significance
Glucose measurements are used in the diagnosis and treatment ofcarbohydrate metabolism disorders including diabetes mellitus, neonatalhypoglycemia, idiopathic hypoglycemia, and pancreatic islet cellcarcinoma.
Performing Laboratory
Community Hospital of the Monterey Peninsula Laboratory
23625 Holman Hwy, Monterey CA 93940
Phone: 831-625-4811; Fax: 831-625-4793
Medical Director: Jeffrey T. Keating M.D.; David L. Gardner M.D.; Andrew Szmit M.D.
