Diabetes mellitus is a medical condition characterised by elevated blood sugar levels.
Gestational diabetes mellitus (GDM) affects approximately one in five pregnant women in Singapore. It typically develops during the middle or later stages of pregnancy.
Should I be screened for GDM?
All pregnant women are generally screened for GDM between 24 to 28 weeks of pregnancy. Early screening may be necessary if you have risk factors such as:
• A body mass index (BMI) over 25kg/m2
• A previous child weighing more than 4 kg at birth
• A personal history of GDM
• Known prediabetes
• Family history of diabetes
• Age 40 years or older
How will I be tested?
GDM is diagnosed using an oral glucose tolerance test (OGTT). The procedure involves:
How does GDM affect my baby and me?
Maintaining normal blood sugar levels is crucial for a healthy pregnancy. Abnormal levels can lead to:
How is GDM treated?
Managing GDM effectively involves:
Do I need medication for GDM?
Injectable insulin may be necessary if blood sugar levels are not controlled through diet and exercise alone.
How do I monitor my blood sugar?
You will need to purchase a glucometer to monitor your blood sugar level. The diabetes care nurses will advise
you on:
• Blood sugar monitoring
• Frequency of blood sugar monitoring (typically seven tests a day, two to three days a week or more if required)
• Blood sugar targets
• Recording and reporting of blood sugar readings and food intake
What happens after delivery?
An OGTT is required six to 12 weeks after delivery to check if abnormal blood sugar levels have normalised.
Women with a history of GDM are at an increased risk of developing diabetes later in life. Preventive measures include a healthy diet, active lifestyle and maintaining a healthy body weight. Regular diabetes screenings every one to three years are recommended.