OGCT (ORAL GLUCOSE CHALLENGE)
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Certified Labs
NABH Accredited
60 mins collection
Not specified
Reports in
3hr
Measures
Blood glucose levels after consuming a sugary drink
Identifies
Insulin resistance and impaired glucose tolerance
About The Test
What Is the Oral Glucose Challenge Test and Why Is It Important?
A medical examination called an Oral Glucose Challenge Test (OGCT) tests the ability of your body to regulate blood sugar after it gets into your system as a result of drinking sugary beverages. The test predicts insulin resistance and impaired glucose tolerance by assessing blood glucose levels after a certain period, usually 1-2 hours.
The OGCT in which patients drink sweetened liquid containing glucose resulting in increased levels of blood sugar before taking another sequential blood sample to measure level of glucose accurately is important in diagnosing type 2 diabetes among individuals at risk as well as tracking how well treatment strategies are working.
What does the Oral Glucose Challenge Test Measure?
The OGCT monitors blood glucose level after taking a sweet drink. The test appraises how the body reacts to a sugar burden that can indicate:
1. Insulin resistance: Body cells are less sensitive to insulin causing high blood sugar levels.
2. Impaired glucose tolerance: Inability of the body to control blood glucose levels effectively after eating glucose.
When Is the Oral Glucose Challenge Test Typically Done?
Normally, the OGCT is carried out:
1. To diagnose insulin resistance and impaired glucose tolerance
2. To screen for type 2 diabetes in high-risk individuals
3. To determine how well treatment plans for type 2 diabetes are working
4. For pregnancy so that gestational diabetes can be diagnosed
Is There Any Risk or Limitations of Oral Glucose Challenge Test?
The OGCT is a relatively safe test; however, few people may experience:
1. Adverse effects: Nausea, vomiting and stomach discomfort after consuming the sweet drink.
2. Contraindications: The test is not recommended for some people with medical conditions such as gastroparesis or gastrointestinal obstruction.
3. Drawbacks: In case there are specific medical conditions such as kidney or liver diseases, this tes
may be inaccurate.
List of Parameters
What Are the Variables That Are Analyzed in Oral Glucose Challenge Test?
The parameters that are assessed through OGCT include:
1. Fasting glucose level: Blood sugar before having sweetened beverage
2. 1-hour glucose level: Sugar content in blood one hour following consumption of sugary drink.
3. 2-hour glucose level: The sugar in the blood 2 hours after you take a sugary drink.
Why This Test
Who Should Consider Taking the Oral Glucose Challenge Test?
The OGCT is recommended for:
1. People whose family members have type 2 diabetes
2. Obese people and those with too much weight
3. Women who had gestational diabetes or gave birth to baby with high weight
4. People suffering from certain illnesses such as polycystic ovary syndrome (PCOS)
Benefits
The Advantages of the Oral Glucose Challenge Test for Your Health The OGCT can help:
1. Find out about early insulin resistance and impaired glucose tolerance, which would be treated promptly and their complications prevented.
2. Follow up on treatment plans for individuals with type 2 diabetes.
3. Reduce risk of developing complications associated with type 2 diabetes.
What Conditions Can the Oral Glucose Challenge Test Diagnose?
The OGCT can diagnose:
1. Insulin resistance
2. Impaired glucose tolerance
3. Type 2 diabetes mellitus
4. Gestational diabetes mellitus
Test Preparation
Preparing For a Oral Glucose Challenge Test
No fasting is required for the Oral Glucose Challenge Test. Avoid heavy meals beforehand, stay hydrated, and follow your doctor’s instructions. Wear comfortable clothing and plan for a short waiting period after drinking the glucose solution.
Prerequisites: Fasting for at least 8 hours before the test
Eligibility: Individuals with certain medical conditions may not be eligible for the test
Procedure to Take the Test: Drinking a sweet drink and giving blood after some time
Caution before doing this test – Inform your healthcare provider about medicines or supplements you are using
Test Results
Understanding Your Oral Glucose Challenge Test Results
| Condition/Findings | Description | Interpretation |
|---|---|---|
| Normal | - Fasting glucose level: <100 mg/dL - 1-hour glucose level: <180 mg/dL - 2-hour glucose level: <140 mg/dL | Normal glucose tolerance |
| Abnormal | - Fasting glucose level: ≥100 mg/dL - 1-hour glucose level: ≥180 mg/dL - 2-hour glucose level: ≥140 mg/dL | Insulin resistance or impaired glucose tolerance |
| Diabetes | - Fasting glucose level: ≥126 mg/dL - 1-hour glucose level: ≥200 mg/dL - 2-hour glucose level: ≥200 mg/dL | Type 2 diabetes |
FAQs
What am I supposed to eat before taking the test?
You need to have fasted for at least eight hours prior to the test.
How long does it take to do the test?
The process is usually done within 1-2 hours.
Are they any side effects of the test?
Some people may experience nausea, vomit and stomach discomfort after using this sweet soft drink.
Can I take the test if I have a medical condition?
: You need to be careful because some conditions can affect how accurate it is for you and others may make it not suitable for you. It is important that you talk to your health care provider before taking this test.