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Gestational Glucose Tolerance - 2 Hour (ADA Recommendations)

Important Note

Patient is pregnant or post-partum

Draw fasting glucose specimen and finger stick glucose

Give 75 gram glucola

Draw the following Specimen at the correct time:

1 Hour Glucose

2 Hour Glucose

Icon & Photos

Grey Potassium Oxalate

Specimen Requirements

Preferred:
Container/Tube: Grey Potassium Oxalate
Minimum Volume: 1.0 mL
Collection Instructions:
Also Acceptable:
Container/Tube: Mint Green Top (Lithium Heparin Gel)

Specimen Stability

Ambient: 8 hours
Refrigerate: 48 hours
Frozen: aliquot for longer storage

Reference Range

Fasting Glucose: 70 – 91 mg/dL
1 Hour Glucose: 70 – 179 mg/dL
2 Hour Glucose: 70 – 152 mg/dL

Methodology

O2 Depletion

CPT

82947
82950