Abnormal Thyroid Levels in Newborns: What Parents Should Know - Breast and Thyroid

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Abnormal thyroid indices in newborns?


Hello Dr.
Wu: My daughter was born on January 19, 2009, and she underwent newborn screening.
Today, the pediatrician called to inform us that she has thyroid abnormalities with a T3 level of 8.77, a T4 level of 54.95, and a TSH level of 0.89.
Could you please advise whether this indicates hyperthyroidism or hypothyroidism? As parents, how should we proceed? Thank you.

Tina, 30~39 year old female. Ask Date: 2009/01/29

Dr. Wu Jingtang reply Breast and Thyroid


Dear Miss Tina: It is recommended that you visit a pediatrician for a diagnosis of hyperfunction.
Wishing you health and safety.
Sincerely, Dr.
Wu Ching-Tang, Attending Surgeon, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2009/01/29

More Info


Understanding abnormal thyroid levels in newborns can be a source of anxiety for parents, especially when faced with the complexities of thyroid function and its implications for a child's health. In your case, the reported thyroid levels indicate a potential issue that requires careful evaluation and management.

Based on the values you provided—T3 at 8.77, T4 at 54.95, and TSH at 0.89—it appears that your daughter may be experiencing hyperthyroidism, which is characterized by elevated levels of thyroid hormones (T3 and T4) and suppressed TSH levels. In a healthy individual, TSH (Thyroid Stimulating Hormone) is produced by the pituitary gland and regulates the production of T3 and T4 by the thyroid gland. When T3 and T4 levels are high, TSH levels typically drop as a feedback mechanism.

Hyperthyroidism in newborns can arise from several causes, including congenital hyperthyroidism, which can be due to maternal factors such as the presence of thyroid-stimulating antibodies in the mother’s bloodstream. It can also occur due to an overactive thyroid gland in the infant itself. Symptoms of hyperthyroidism in infants may include rapid heart rate, irritability, poor weight gain, and difficulty sleeping.

As parents, it is essential to follow up with your pediatrician or a pediatric endocrinologist for a thorough evaluation. They may recommend additional tests to confirm the diagnosis and determine the underlying cause of the abnormal thyroid levels. Treatment options may vary depending on the cause and severity of the condition. In some cases, medication may be prescribed to manage the thyroid hormone levels, while in other instances, further intervention may be necessary.

It is also crucial to monitor your child's growth and development closely. Regular check-ups will help assess whether the treatment is effective and if any adjustments are needed. Your healthcare provider will likely schedule follow-up blood tests to monitor thyroid hormone levels and ensure they are within the normal range.

In the meantime, here are some general guidelines for parents managing a child with abnormal thyroid levels:
1. Stay Informed: Educate yourself about thyroid function and the implications of abnormal levels. Understanding the condition can help alleviate anxiety and empower you to make informed decisions.

2. Maintain Open Communication: Keep an open line of communication with your healthcare provider. Don’t hesitate to ask questions or express concerns about your child's health and treatment plan.

3. Monitor Symptoms: Keep track of any symptoms your child may exhibit, such as changes in appetite, energy levels, or behavior. This information can be valuable for your healthcare provider in assessing your child's condition.

4. Follow Treatment Plans: Adhere to the treatment plan prescribed by your healthcare provider. This may include medication, regular blood tests, and follow-up appointments.

5. Support Development: Encourage a nurturing environment that supports your child's growth and development. Engage in age-appropriate activities and ensure your child receives adequate nutrition.

6. Seek Support: Connecting with support groups or other parents facing similar challenges can provide emotional support and practical advice.

In conclusion, while abnormal thyroid levels in newborns can be concerning, with appropriate medical guidance and monitoring, many children can lead healthy lives. It is essential to work closely with your healthcare team to ensure the best outcomes for your child.

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