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Labcorp Oklahoma, Inc.
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Gestational Glu Tolerance 3 HR

Order Name GLUTTGEST3HR
Revision Date 01/12/2013
Test Name Methodology LOINC Code
Gestational Glu Tolerance 3 HR
 
SPECIMEN REQUIREMENTS
Instructions Patient Preparation Note: This test is for pregnant patients only. Patients are encouraged to call Customer Service at 307-1111 to schedule procedure. 1. Patient should have normal diet and activity for 3 days prior to test. 2. Patient should have fasted 8 to 14 hours (overnight) prior to test. 3. Testing should begin between 7 a.m. and 9 a.m. 4. Some medications may affect blood glucose (eg, steroids, antihypertensive medications [thiazides], and diabetes medications [metformin]). Patient should follow physician instructions if any need to be discontinued prior to test. 5. Patient may drink water during test. 6. Patient should refrain from chewing gum, drinking coffee, and smoking before and during test. Testing will be cancelled if patient has smoked day of test. Performance of Test 1. Draw fasting blood specimen. 2. Give patient 100 grams of Glucola drink. 3. Patient should remain at rest during test and report any nausea, vomiting, heavy sweats, or dizziness to nurse or laboratory staff. 4. Draw blood specimen at 1-, 2-, and 3-hours post Glucola ingestion. Specimen Collection Draw blood in a serum gel tube(s). Centifuge clotted blood within 2 hours preferred. Send 1 mL (minimum volume: 0.5 mL) of serum refrigerated. Note: Label specimen with patient name (first and last) or other unique identifier, patient hospital identification number or Social Security number, date and time of draw, collector initials, and test(s) being ordered.
GENERAL INFORMATION
Testing Schedule Monday through Sunday TAT: 2 hours STAT TAT: 30 minutes  
CPT Code(s) 82951
Lab Section NRLS-Core Chemistry