Sign in →

EPIC CODE: LAB2477 Gestational Glucose Screen 50G Load

ADDITIONAL TEST CODE

Sunquest: GLU50C

REGIONAL HOSPITAL PERFORMING

UPH Methodist Hospital – Chemistry
UPH Pekin Hospital
UPH Proctor Hospital

PREP PRIOR TO COLLECTION

None: Fasting not required for this test.

Collect

1 timed sample: 60 minutes post 50 gram glucose load:

Methodist: Gray top (sodium fluoride/potassium oxalate) (Min: 3 mL) per time point. OR Gold top tube. Gold tube must be spun down ASAP or within 2 hours of collection.

Proctor:
Lithium Heparin Plasma Separator Tube

Clearly label samples with actual collection time

Pediatric Requirements

N/A

Storage/Transport Temperature

Methodist: One Gray top or 0.5 mL plasma (sodium fluoride/potassium oxalate) per time point at ambient or 2-8o C.

Proctor & Pekin: Lithium Heparin or SST

Stability (from collection to initiation)

Grey top:

Ambient (room temperature): 24 hours

Refirgerated: 7 days

Frozen (-20o C) Stability: Indefinitely

Gold top or Lithium Plasma Separator Tube:

After seperation from cells:

Ambient (room temperatur): 8 hours

Refrigerated: 72 hours

Frozen (-20o C) Stability: 1 year

Unacceptable Conditions

Reason for invalid results include emesis and conditions which delay stomach emptying.

Unspun gold top tubes

Days Performed

Monday – Saturday

Methodology

Enzymatic (Hexokinase)

CPT Codes

82950

Notes

This is a screening for gestational diabetes mellitus using a 50 gram glucose challenge and sampling after 1 hour. Patients with values above 135 mg/dL should have the 3 hour 100 gram GGTT performed for diagnosis, as per ACOG Guidelines.