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Pregnancy Diabetes Chart or Gestational Diabetes Mellitus Chart


Medically, Gestational (jes-TAY-shun-ul) Diabetes Mellitus (GDM) is defined as glucose intolerance, which is diagnosed during pregnancy. It is reported to affect approximately 7% of all pregnancies. GDM can adversely affect both the mother and the baby; hence a diagnosis, if made, should be taken seriously.

Gestational (jes-TAY-shun-ul) Diabetes Mellitus (GDM) is a form of diabetes that affects approximately 4% of pregnant women. In India an overall prevalence of 9 to 18% has been reported. GDM can adversely affect both the mother and the baby; hence a diagnosis, if made, should be taken seriously.

The risk factors for GDM include � A family history of diabetes, obesity or testing positive for glucose in the urine. Most pregnant women will undergo screening to check the blood glucose level. If the readings are high, they will be advised to undergo an Oral Glucose Tolerance Test. Blood samples are taken while fasting and also during one, 2 and 3 hours after having 100 gms of glucose. These samples are tested in the laboratory and the readings are interpreted.
Sample drawn after 100-gram glucose drink (glucose load)
Time of Sample Collection Target LEVEL
Fasting* (prior to glucose load) 95 mg/dL (5.3 mmol/L)
1 hour after glucose load 180 mg/dL (10.0 mmol/L)
2 hours after glucose load 155 mg/dL (8.6 mmol/L)
3 hours after glucose load* 140 mg/dL (7.8 mmol/L)
INDICATION: If two or more values meet or exceed the target level, gestational diabetes is diagnosed.

Reported prevalence of GDM in a region depends on the methods and criteria used to establish its diagnosis. For example - WHO uses 75 grams of oral glucose load and not 100 gms as described above. It also suggests only two samples of blood � one while fasting and the other at 2 hours after consuming glucose. This method is more cost effective and is used frequently in India.

The National Institutes of Health Diabetes Data Group (NDDG) from the USA (Diabetes 1979;28:1039) and the values established by Carpenter and Coustan (Am J Obstet Gynecol 1982;144:768-73) uses a 100 gram glucose load. Their diagnosis is based on four measurements (fasting, 1, 2 and 3 hr. glucose levels).

Over the years different investigators have come up with different values with small variations as shown in the chart below.
NDDG(1979) Carpenter & Coustan (1982) Sacks et al (1989)
Fasting 105 95 96
1 hour 190 180 172
2 hour 165 155 152
3 hour 145 140 131

Remember that women diagnosed with GDM can develop diabetes later on in their life. Hence they are advised to undergo annual screening to enable early diagnosis or to rule out the condition.
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References:

  • clinical.diabetesjournals.org/content/23/1/17.full.pdf
  • www.ncbi.nlm.nih.gov/pmc/articles/pmc2582643/
  • care.diabetesjournals.org/content/27/suppl_1/s88.full#sec-8
  • www.hawaii.edu/hivandaids/Gestational%20Diabetes.pdf

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FAQs

1. Which doctor should I visit for gestational diabetes?

You should initially consult with your obstetrician (OB-GYN) for gestational diabetes management. Depending on your specific needs, they may also refer you to other specialists such as an endocrinologist for further guidance and treatment.

2. Why is testing blood sugar important in pregnancy?

Without specific testing, gestational diabetes can often go undetected until complications arise. The symptoms and signs of diabetes may be subtle such as excessive thirst, increased urination , and unusual tiredness. Monitoring helps manage blood sugar levels, reducing the risk of these complications and ensuring a safe pregnancy and delivery. It also lowers the long-term risk of type 2 diabetes for the mother (4 Trusted Source
Gestational diabetes symptoms

Go to source
).

3. Will I require insulin jabs to control my sugar?

Yes, in some cases, insulin injections may be required to control blood sugar levels if diet and lifestyle changes are not enough. This helps prevent complications for both the mother and baby, ensuring a healthier pregnancy (1 Trusted Source
Gestational diabetes

Go to source
).

4. What percentage of women with gestational diabetes will have diabetes after the pregnancy?

The blood sugar levels will return to normal after delivery. Approximately 50% of women who have developed gestational diabetes will develop type 2 diabetes within 5-10 years after pregnancy. Regular monitoring and a healthy lifestyle can reduce the risk.
Risk factors for progression from gestational diabetes to postpartum type 2 diabetes: a review (6 Trusted Source
Risk factors for progression from gestational diabetes to postpartum type 2 diabetes: a review

Go to source
)

5. Does ethnicity play a role?

Yes, Ethnicity plays a major role in gestational diabetes. This could be due to a variety of factors, including genetic predisposition, lifestyle factors, and socioeconomic factors. Women of the following ethnic groups have higher chances of having gestational diabetes:

  • African Americans
  • Hispanic or Latino Americans
  • American Indians
  • South Asian(7 Trusted Source
    Disparities in the risk of gestational diabetes by race-ethnicity and country of birth

    Go to source
    )

6. What are the symptoms of gestational diabetes?

Gestational diabetes often manifests without noticeable symptoms, highlighting the importance of testing for early detection and management. However, when symptoms do appear, they can include increased thirst, frequent urination, dry mouth, fatigue, blurred vision, or genital itching or thrush (8 Trusted Source
Symptoms of gestational diabetes

Go to source
).

7. Can exercise help control gestational diabetes?

Yes, regular exercise helps your body use insulin more effectively, keeping blood sugar levels in check. Regular physical activity such as swimming, walking or prenatal yoga can lower blood sugar levels improving overall health and reducing the risk of complications during pregnancy. Always consult with a healthcare provider before starting an exercise routine to ensure it's safe for both you and your baby (9 Trusted Source
Blood Glucose and Exercise

Go to source
).

8. Can I still eat sweets if I have gestational diabetes?

Yes, you can still enjoy sweets in moderation if you have gestational diabetes, but it's important to be mindful of portion sizes and how they affect your blood sugar. Opt for sugar-free or low-glycemic alternatives when possible, and try to pair sweets with a source of protein or healthy fat to help balance blood sugar levels (10 Trusted Source
Dietary Recommendations for Gestational Diabetes

Go to source
).

9. Is breastfeeding safe with gestational diabetes?

Yes, breastfeeding is safe and highly beneficial for both mother and baby, even if the mother had gestational diabetes. Breastfeeding helps regulate the baby's blood sugar levels, reduces the risk of obesity and diabetes later in life, and promotes bonding.

For the mother, breastfeeding can assist in regulating blood sugar and may help in losing pregnancy weight. However, mothers with gestational diabetes need to continue monitoring their blood sugar levels while breastfeeding, as breastfeeding can influence insulin needs. Always consult with a healthcare provider for personalized advice (11 Trusted Source
Breastfeeding and Diabetes

Go to source
).

  • 1. Gestational diabetes
    (https://my.clevelandclinic.org/health/diseases/9012-gestational-diabetes)
  • 2. Definition & Facts of Gestational Diabetes
    (https://www.niddk.nih.gov/health-information/diabetes/overview/what-is-diabetes/gestational/definition-facts)
  • 3. Gestational Diabetes
    (https://www.nhs.uk/conditions/gestational-diabetes)
  • 4. Gestational diabetes mellitus
    (https://pmc.ncbi.nlm.nih.gov/articles/PMC4404472/)
  • 4. Gestational diabetes symptoms
    (https://www.diabetes.org.uk/about-diabetes/gestational-diabetes/symptoms)
  • 5. Gestational diabetes diet
    (https://medlineplus.gov/ency/article/007430.htm)
  • 6. Risk factors for progression from gestational diabetes to postpartum type 2 diabetes: a review
    (https://pmc.ncbi.nlm.nih.gov/articles/PMC7855576/)
  • 7. Disparities in the risk of gestational diabetes by race-ethnicity and country of birth
    (https://pmc.ncbi.nlm.nih.gov/articles/PMC4180530/)
  • 8. Symptoms of gestational diabetes
    (https://www.tommys.org/pregnancy-information/pregnancy-complications/gestational-diabetes/symptoms-gestational-diabetes)
  • 9. Blood Glucose and Exercise
    (https://diabetes.org/health-wellness/fitness/blood-glucose-and-exercise )
  • 10. Dietary Recommendations for Gestational Diabetes
    (https://www.ucsfhealth.org/education/dietary-recommendations-for-gestational-diabete)
  • 11. Breastfeeding and Diabetes
    (https://diabetes.org/living-with-diabetes/pregnancy/diabetes-breastfeeding)

Post a Comment

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Comments

silvia-juarez - Feb 24, 2024

I had my Glucose test done today 100 grams Fasting : 81 1 hour: 172 2 hour: 127 3 hour : waiting on my last result Is this is high ?

coronation, India - Jul 04, 2022

I HAVE 170 MG/DL OF BLOOD SUGAR LEVEL AFTER GLUCOSE SUGAR LOAD. I AM RIGHT NOW IN MY 24 WEEKS OF PREGNANCY. AM I HAVING DIABETES. FOR INFO, I HAD TAKEN ONLY 50GMS OF GLUCOSE 1 HOUR BEFORE THE TEST.

sowjanya1234, India - Jun 27, 2022

I HAVE 217 MG/DL OF BLOOD SUGAR LEVEL AFTER GLUCOSE SUGAR LOAD. I AM RIGHT NOW IN MY 26 WEEKS OF PREGNANCY. AM I HAVING DIABETES. FOR INFO, I HAD TAKEN ONLY 50GMS OF GLUCOSE 1 HOUR BEFORE THE TEST.

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