Alias

Epic: 0118

Patient Preparation

Instruct the patient to drink 50 grams (5 ounces) of Glucola within 5 minutes.

Collect a glucose 1 hour after the patient has begun ingesting the Glucola. If vomiting occurs, cancel test and notify provider of cancellation.

Note:
A subset of patients prefer an alternative product to our current glucose tolerance beverage. The Fresh Test - A glucose test that's healthy for you & your baby has been approved for use for the 1 HR GTT (1 HR Challenge). However, the patient is responsible for the purchase, reconstitution, and consumption of the drink at their OB appointment. After consuming the drink, the patient will be sent to lab for the collection with the expected draw time noted.


OB Glucola Administration Form

Collect

Light green (lithium heparin) tube

Minimum Volumes

0.1 mL

Specimen Preparation

Separate serum or plasma from cells within 2 hours of collection. Transfer serum from plain red tubes to an Inpeco aliquot tube.

Other Acceptable Specimens

Gold (SST), red, red/gray, light green (lithium heparin) on ice

Storage/Transport Temperature

Refrigerated

Stability (from collection to initiation)

Ambient: 2 days; Refrigerated: 7 days; Frozen: 3 months

Ordering Recommendations

The 1 hour Glucose Challenge Test is a screening test intended only for OB patients. No fasting glucose is required.

Performed

Hospital: Sun-Sat
Clinics: Mon-Fri

Reported

24 hours

Remarks

The following information is required when ordering: GMS (grams): Default is 50 grams. Enter number of grams if other than 50.

Performing Lab

Amery, Central Lab, Hudson, Hutchinson, Lakeview, Park Nicollet Burnsville, Olivia, Park Nicollet Maple Grove, Park Nicollet Methodist Hospital, Park Nicollet Saint Louis Park, Regions, Westfields

Reference Interval

70 - 135 mg/dL
Critical Low: <= 53 mg/dL
Critical High: >= 450mg/dL

Interpretive Data

During pregnancy, about 4% of women with no prior history of diabetes will develop gestational diabetes. Although it can occur at any time, most cases will develop during the later part of the pregnancy. If increased blood sugar levels in the pregnant woman are uncontrolled, they can cause the fetus to increase in size and weight. They can also cause the baby to be born with very low glucose levels and to have breathing difficulties. Most women are checked for gestational diabetes between 24 and 28 weeks of pregnancy. For those with gestational diabetes, diet control and/or insulin injections throughout the rest of the pregnancy may be required to bring glucose levels down to normal levels. In most cases, gestational diabetes will go away after delivery, but women who have gestational diabetes will be at an increased risk of having it again with subsequent pregnancies and of developing type 2 diabetes in the future.

Methodology

Enzymatic (Hexokinase/G-6-PDH)

CPT Codes

82950
Collection

Alias

Epic: 0118

Patient Preparation

Instruct the patient to drink 50 grams (5 ounces) of Glucola within 5 minutes.

Collect a glucose 1 hour after the patient has begun ingesting the Glucola. If vomiting occurs, cancel test and notify provider of cancellation.

Note:
A subset of patients prefer an alternative product to our current glucose tolerance beverage. The Fresh Test - A glucose test that's healthy for you & your baby has been approved for use for the 1 HR GTT (1 HR Challenge). However, the patient is responsible for the purchase, reconstitution, and consumption of the drink at their OB appointment. After consuming the drink, the patient will be sent to lab for the collection with the expected draw time noted.


OB Glucola Administration Form

Collect

Light green (lithium heparin) tube

Minimum Volumes

0.1 mL

Specimen Preparation

Separate serum or plasma from cells within 2 hours of collection. Transfer serum from plain red tubes to an Inpeco aliquot tube.

Other Acceptable Specimens

Gold (SST), red, red/gray, light green (lithium heparin) on ice

Storage/Transport Temperature

Refrigerated

Stability (from collection to initiation)

Ambient: 2 days; Refrigerated: 7 days; Frozen: 3 months

Ordering Recommendations

The 1 hour Glucose Challenge Test is a screening test intended only for OB patients. No fasting glucose is required.

Performed

Hospital: Sun-Sat
Clinics: Mon-Fri

Reported

24 hours

Remarks

The following information is required when ordering: GMS (grams): Default is 50 grams. Enter number of grams if other than 50.

Performing Lab

Amery, Central Lab, Hudson, Hutchinson, Lakeview, Park Nicollet Burnsville, Olivia, Park Nicollet Maple Grove, Park Nicollet Methodist Hospital, Park Nicollet Saint Louis Park, Regions, Westfields
Result Interpretation

Reference Interval

70 - 135 mg/dL
Critical Low: <= 53 mg/dL
Critical High: >= 450mg/dL

Interpretive Data

During pregnancy, about 4% of women with no prior history of diabetes will develop gestational diabetes. Although it can occur at any time, most cases will develop during the later part of the pregnancy. If increased blood sugar levels in the pregnant woman are uncontrolled, they can cause the fetus to increase in size and weight. They can also cause the baby to be born with very low glucose levels and to have breathing difficulties. Most women are checked for gestational diabetes between 24 and 28 weeks of pregnancy. For those with gestational diabetes, diet control and/or insulin injections throughout the rest of the pregnancy may be required to bring glucose levels down to normal levels. In most cases, gestational diabetes will go away after delivery, but women who have gestational diabetes will be at an increased risk of having it again with subsequent pregnancies and of developing type 2 diabetes in the future.

Methodology

Enzymatic (Hexokinase/G-6-PDH)
Administrative

CPT Codes

82950