how do insulin requirements change during the course of pregnancy and after birth

by Ralph Streich 8 min read

Regardless of the metabolic control and duration of diabetes, averaged daily insulin requirements increased twofold from earlier in pregnancy. Following initial hospitalization, insulin requirements often decreased before increasing almost linearly between 2 and 9 months gestation.

Changes after the birth
Once your baby is born and your placenta is delivered, your insulin requirements will fall dramatically. The mother's insulin requirements tend to be very low for the first few days after the baby is born and then gradually increases.

Full Answer

Do insulin doses change during pregnancy?

Fluctuations in insulin requirements were greatest during the last trimester. Insulin demand dropped precipitously after delivery and was two-thirds the averaged prepregnancy insulin dose or one-third the dose at 9 months gestation by the third postpartum day. The total average insulin dose was the same as that before pregnancy by the end of the first postpartum week.

How much insulin do I need during second trimester?

Results: The insulin dose gradually increased during pregnancy, reaching a maximum dose that was 1.6 times of that prior to pregnancy, at 35 weeks of gestation. A negative significant correlation was observed between the insulin dose increases and duration of diabetes ( …

Why do women with preexisting diabetes need insulin during pregnancy?

Mar 27, 2018 · Insulin Changes During Pregnancy. Insulin requirements tend to change constantly throughout pregnancy as different hormones take effect and your baby grows. You need to be prepared to adjust your insulin doses on a regular basis. It is not uncommon to need to make adjustments to your dose at least once a week.

What are the effects of insulin glulusine on fetal development?

Feb 21, 2022 · The total daily dose of insulin in the first trimester (weeks 5-12) insulin requirement is 0.7 unit/kg/day; in the second trimester (weeks 12-26) the insulin requirement is 0.8 unit/kg/day; in the third trimester (weeks 26-36) the insulin requirement is 0.9 unit/kg/day; and at term (weeks 36-40) the insulin requirement is 1.0 unit/kg/day (Table 27.1).

Does insulin change during pregnancy?

Insulin resistance changes over time during pregnancy, and in the last half of the pregnancy, insulin resistance increases considerably and can become severe, especially in women with gestational diabetes and type 2 diabetes.

Do insulin needs decrease during pregnancy?

For patients with gestational or preexisting diabetes being treated with insulin therapy, insulin requirements are expected to steadily increase throughout pregnancy. In a small subset of patients, insulin requirements decrease in the third trimester.

How does pregnancy affect insulin?

In late pregnancy, the hormones estrogen, cortisol, and human placental lactogen can block insulin. When insulin is blocked, it's called insulin resistance. Glucose can't go into the body's cells. The glucose stays in the blood and makes the blood sugar levels go up.

Why do insulin requirements decrease during labor?

During the latent phase of labor, the metabolic demands are stable but during active labor there is increased metabolic demand and decreased insulin requirement.

What are the metabolic changes associated with pregnancy?

Total triglyceride concentrations increase 2 to 4-fold and total cholesterol concentrations increase 25% to 50% during normal human pregnancy. Furthermore, there is a 50% increase in LDL cholesterol and a 30% increase in HDL cholesterol by mid-gestation, followed by a slight decrease in HDL at term.

How does type 2 diabetes affect pregnancy?

Diabetes that is not well controlled causes the baby's blood sugar to be high. The baby is “overfed” and grows extra large. Besides causing discomfort to the woman during the last few months of pregnancy, an extra large baby can lead to problems during delivery for both the mother and the baby.

How does gestational diabetes affect baby after birth?

Babies of mothers who have gestational diabetes have a higher risk of developing obesity and type 2 diabetes later in life. Stillbirth. Untreated gestational diabetes can result in a baby's death either before or shortly after birth.Aug 26, 2020

When does insulin resistance happen in pregnancy?

Birth defects usually originate sometime during the first trimester (before the 13th week) of pregnancy. The insulin resistance from the contra-insulin hormones produced by the placenta does not usually occur until approximately the 24th week.

What happens to insulin after delivery?

If insulin is ordered by your doctor, take it as directed in order to help keep blood sugar under control. Get tested for diabetes 6 to 12 weeks after your baby is born, and then every 1 to 3 years. For most women with gestational diabetes, the diabetes goes away soon after delivery.

Does insulin need increase/decrease or remain stable during postpartum?

Maternal insulin needs decrease following delivery,1,7 often leading to maternal hypoglycemia in the immediate postpartum period. Additionally, maternal hyperglycemia in the postpartum period can complicate recovery, particularly for patients recovering from cesarean deliveries.Mar 13, 2018

How do you give insulin during labor?

Insulin therapy during labour means short-acting insulin adjusted to achieve glucose levels between 4 and 8 mmol l(-1) to prevent neonatal hypoglycaemia as much as possible. After delivery, glycaemic control must be relaxed to prevent hypoglycaemia, especially in women who breastfeed.

How often should I adjust my insulin during pregnancy?

You need to be prepared to adjust your insulin doses on a regular basis. It is not uncommon to need to make adjustments to your dose at least once a week. If you are not sure how to adjust your insulin doses, ask your diabetes in pregnancy team for advice. Adjusting insulin doses in pregnancy is more challenging than usual, so make sure you know how to get in touch with your diabetes team and be prepared to contact them more often. Early pregnancy changes Many women find it extremely challenging to maintain optimal blood glucose levels in the early stage of pregnancy with so many hormonal and physical changes occurring. For around the first six to eight weeks of pregnancy your blood glucose levels may be more unstable. Following these early pregnancy changes to your blood glucose levels, you may find that your insulin requirements decrease until the end of the first trimester. You may need to adjust your insulin doses at this time to reduce the risk of severe hypos occurring, sometimes without much (or any) warning. Preventing a hypo is better than treating one. Try not to miss any meals or snacks and check your blood glucose levels regularly. Mid to late pregnancy changes From the second trimester of pregnancy, especially after 18 weeks your insulin requirements will usually start to rise. By around 30 weeks you may need as much as two or three times your daily pre- pregnancy insulin dose. This is because the hormones made by the placenta interfere with the way your insulin normally works - as the pregnancy hormones rise, so does your need for insulin. At this stage you are likely to need more mealtime, rapid-acting insulin, compared with the long- Continue reading >>

Is 2nd trimester good for diabetics?

If you’re not a type 1 diabetic, the 2nd trimester of pregnancy is promised to be a wonderfully energetic phase during which you are no longer hindered by 1st trimester nausea and exhaustion. Instead, there is a promised boost of energy and that wonderful pregnancy “glow” that everyone notices…except you as the one carrying the adorable mini bowling-ball behind your belly button. If you are a type 1 diabetic, the 2nd trimester will hopefully bring all the described benefits mentioned above, but it also comes with an extra workload of blood sugar management. For those of us with very “confused” immune systems, the 2nd trimester begins the gradual climb of insulin resistance. But this form of insulin resistance is actually a very healthy sign of a very normal pregnancy because it’s the result of your increasing hormone levels as baby grows and grows in your belly! At the same time, it means we have to pre-bolus our insulin for meals more carefully and keep a watchful eye on our gradually increasing blood sugars so we know when to increase our background/basal insulin doses. My Personal 2nd Trimester Experience (with Baby #2, so far) For me, this rise in background insulin came on heartily in this past month (January). In December, I’d seen a steep drop in my insulin needs because of not being able to eat very much food for two weeks due to Super Pregnancy Stomach Acid Woe in addition to the marvelous phase of producing insulin during pregnancy! Now that I’m on the right cocktail of antacids, I can eat a full day’s worth of calories instead of barely 1,000 calories! My pre-pregnancy background insulin dose (Tresiba insulin): 11 units total My 1st trimester insulin dose (Tresiba insulin): 10 units total My current background insulin dose at 21 weeks preg Continue reading >>

Can you have diabetes while pregnant?

Having a chronic condition such as diabetes (diabetes mellitus) takes careful monitoring of your health at the best of times, and this becomes even more crucial during pregnancy, a time when your body changes dramatically. Most women who have pre-existing diabetes who become pregnant have type 1 diabetes (once called insulin-dependent or juvenile diabetes), although some may have type 2 (once called non-insulin dependent or maturity-onset) diabetes. Another type of diabetes called gestational diabetes is a temporary type of diabetes that occurs in pregnant women who have never had diabetes before and it usually goes away after the baby is born. This article deals only with pre-existing diabetes — also known as 'pre-gestational diabetes'. If you have diabetes, there’s no reason that you can’t have a healthy and successful pregnancy and deliver a healthy baby. What it does mean is that you will probably have to work closely with your doctor and other healthcare professionals to ensure you manage your diabetes well during your pregnancy. I have diabetes and want to become pregnant: what should I do? Seeing your doctor for pre-pregnancy planning is an important step in ensuring the best outcome for you and your baby. You have a pre-existing condition, so you can plan ahead and discuss with your doctor what you need to do before you become pregnant, and what you can do to manage your diabetes during pregnancy. For example, if you have diabetes, you have a slightly higher risk than other women of your baby: having a birth defect; being born prematurely; weighing too much or too little; having jaundice; or having dangerously low blood sugar levels after birth. You yourself have an increased risk of having a miscarriage or of developing high blood pressure during the preg Continue reading >>

Can insulin levels decrease during pregnancy?

Assessing Insulin Requirements in Pregnant Women with Type 1 Diabetes Women with type 1 diabetes mellitus (T1DM) whose insulin requirements decrease during their pregnancy may not suffer from any adverse neonatal outcomes , according to a study. Since pregnancy in women with T1DM is usually linked with an increase in insulin requirements, researchers in Australia were interested in determining the frequency of decreasing insulin requirements in pregnant women, as well as the effects on newborns. The study, Insulin requirements in late pregnancy in women with type 1 diabetes mellitus: A retrospective review, was conducted by researchers at the Royal Brisbane and Womens Hospital in Queensland, Australia. It was published online ahead of print in October 2012 in the journal Diabetes Research and Clinical Practice. The researchers collected data on 54 women who were seen at their hospital between 2006 and 2010. All of the women had a diagnosis of T1DM prior to their pregnancy. The study authors collected information on demographic factors, changes in insulin dose during pregnancy, and the womens pregnancy outcomes. Women who had a 15% difference in insulin dosage between 30 weeks gestation and delivery were considered to have significant increases or decreases in insulin requirements. The results of the study showed that 9.3% of the women (5 out of 54) had a decrease in insulin requirements of 15% or more. Approximately 42% of the participants (23 out of 54) had a rise of more than 15%. The researchers found that neonatal intensive care admissions were fewer in women who had a decrease in insulin requirements, but these women were also more likely to have infants with low APGAR newborns scores (at 5 minutes). However, these results were not seen when further statistical mod Continue reading >>

How often should I adjust my insulin during pregnancy?

You need to be prepared to adjust your insulin doses on a regular basis. It is not uncommon to need to make adjustments to your dose at least once a week. If you are not sure how to adjust your insulin doses, ask your diabetes in pregnancy team for advice. Adjusting insulin doses in pregnancy is more challenging than usual, so make sure you know how to get in touch with your diabetes team and be prepared to contact them more often. Early pregnancy changes Many women find it extremely challenging to maintain optimal blood glucose levels in the early stage of pregnancy with so many hormonal and physical changes occurring. For around the first six to eight weeks of pregnancy your blood glucose levels may be more unstable. Following these early pregnancy changes to your blood glucose levels, you may find that your insulin requirements decrease until the end of the first trimester. You may need to adjust your insulin doses at this time to reduce the risk of severe hypos occurring, sometimes without much (or any) warning. Preventing a hypo is better than treating one. Try not to miss any meals or snacks and check your blood glucose levels regularly. Mid to late pregnancy changes From the second trimester of pregnancy, especially after 18 weeks your insulin requirements will usually start to rise. By around 30 weeks you may need as much as two or three times your daily pre- pregnancy insulin dose. This is because the hormones made by the placenta interfere with the way your insulin normally works - as the pregnancy hormones rise, so does your need for insulin. At this stage you are likely to need more mealtime, rapid-acting insulin, compared with the long- Continue reading >>

How to keep your blood glucose levels high during pregnancy?

When your blood glucose levels stay raised despite meal planning and physical activity, insulin must be added to your management plan to keep you and your baby healthy. Pregnancy requires that your body produce extra amounts of insulin. Insulin is a hormone that is made by the pancreas. If your pancreas does not make enough insulin, injections can help you meet the need. Your health care provider and diabetes educator will teach you how to inject insulin safely and comfortably. Determining the right insulin and dosage Tip Keep a record of the type and amount of insulin you take. It is important that you know and remember your insulin type every time you speak with a health care provider. Your health care provider will decide what kind of insulin is right for you, how much to use and when you should take it, based on: your weight (which changes weekly) how far along your pregnancy is your meal plan your most recent blood glucose levels Sometimes, you may need more than one type of insulin. Different types of insulin work at different speeds, and your health care provider may combine insulins to achieve the best results for you. Time-action of different insulins Insulins Starts working Peaks Stops working Rapid acting: Humalog® (lispro) NovoLog® (aspart) Apidra® (glulisine) 5 to 15 minutes 1 to 2 hours 2 to 4 hours Intermediate acting: NPH (N) 2 to 4 hours 4 to 8 hours 10 to 16 hours Basal*: Lantus® (glargine) Levemir® (detemir) 2 hours No peak 24 hours *Lantus® and Levemir® cannot be mixed with any other insulin. How to help insulin work best Take your insulin at the same times each day as directed. Talk with your health care provider if you feel sick. Follow any instructions your health care provider gives you. Don't change your meal plan, physical activity, pres Continue reading >>

Why is blood glucose important during pregnancy?

Blood glucose control essential Optimal blood glucose control is important throughout pregnancy, both for the mother's health and the baby's. Glucose in a mother's blood crosses the placenta to her baby, affecting the baby's blood glucose level.

Can diabetes cause pregnancy?

Great Expectations A healthy pregnancy with diabetes is a challenge, but consider this: Less than 100 years ago, before the discovery of insulin, many young women with Type 1 diabetes didn’t even live to reach childbearing age. And less than 30 years ago, physicians routinely told young women with Type 1 diabetes that pregnancy was far too dangerous for both mother and child. Today, thanks to advances in diabetes treatment, plus improvements in medical care for infants, there has never been a better time for you to have a healthy baby. Insulin pump therapy is one of the options available to women today for managing diabetes during pregnancy. Challenges of pregnancy Pregnancy with diabetes presents a variety of challenges for you and your diabetes management team far beyond the routine morning sickness, fatigue, and strange food cravings experienced by many women who are expecting. The length of time you’ve had diabetes as well as the course of your disease influences the seriousness of medical risks during your pregnancy. For example, if you have mild retinopathy, it may progress during pregnancy. Your kidney status could worsen. Women with diabetes are at higher risk for frequent and severe hypoglycemia (low blood glucose) during pregnancy because glucose crosses the placenta to provide nutrition for the growing baby. The pregnancy state also tends to allow diabetic ketoacidosis — a dangerous condition usually accompanied by very high blood glucose — to develop quickly. Having a thorough medical evaluation prior to pregnancy is extremely important for determining your individual situation and management solutions. Good blood glucose control before and during pregnancy will minimize all risks to the mother. Risks to the baby are also a consideration when a woman Continue reading >>