Blood Test for Hypothyroidism

What are thyroid tests?

Before learning about thyroid tests in detail, the thyroid gland is a butterfly-shaped gland in your neck that is placed above the breastbone. Its main job is to produce hormones that help keep several body systems in control. 

Thyroid tests are crucial when you experience symptoms like fatigue, sluggishness, restlessness, or unexplained weight changes. 

A healthcare professional suggests blood tests for thyroid tests to diagnose various conditions: 

• Hypothyroidism
• Hyperthyroidism
• Thyroiditis
• Graves’ Disease
• Hashimoto’s disease. 

This writing contains comprehensive information about a blood test for hypothyroidism levels. Let’s look at the different types of thyroid tests that fall under two categories: 

Thyroid blood tests

Thyroid blood tests include hormones and proteins like antibodies and thyroglobulin. The report will show whether you have an underactive (hypothyroidism) or overactive (hyperthyroidism) thyroid. The most popular thyroid tests are TSH, T3, T4, and thyroid antibodies. 

Thyroid imaging tests

Thyroid imaging tests are performed to find nodules (lumps) in your neck that could be cancerous or non-cancerous. These tests include nuclear medicine imaging, such as thyroid uptake and scan tests. Injections or a small amount of contrast material are to be swallowed. 

Hypothyroidism (Underactive Thyroid)

Hypothyroidism can occur when your body does not produce enough hormones in the bloodstream. This can negatively affect your metabolism, causing you to put on a lot of weight and feel tired. Hence, a doctor suggests hormonal replacement therapy (HRT) to treat an underactive thyroid. 

Although these symptoms may be linked to other diseases, a blood test for hypothyroidism levels is necessary to confirm the diagnosis. 

Once you are diagnosed with hypothyroidism, consult an endocrinologist for medications and regular follow-ups to keep track of the same. This would also prevent disease progression and prevent it from becoming life-threatening. 

Different Types of Hypothyroidism 

There are four different types of hypothyroidism: 

• Primary Hypothyroidism

It is a very common stage of hypothyroidism. The pituitary gland makes more thyroid-stimulating hormones (TSH) or has low levels of thyroid hormones. 

• Secondary Hypothyroidism 

The pituitary gland is a pea-sized gland beneath your brain. It becomes underactive in the secondary stage of hypothyroidism, stopping the gland from sending TSH to the thyroid gland. 

• Tertiary Hypothyroidism 

In the third stage of hypothyroidism (tertiary hypothyroidism), the hypothalamus doesn’t make enough thyrotropin-releasing hormone (TRH). 

• Subclinical Hypothyroidism 

Also known as mild thyroid failure, this stage shows slightly elevated TSH levels. This hypothyroid type goes away on its own.

Symptoms and Causes of Hypothyroidism 

What are the symptoms of hypothyroidism?

Some possible symptoms of hypothyroidism that can develop slowly and may affect you now and then, if not treated: 

• Forgetfulness (Brain Fog)
• Depression and anxiety 
• Dry or coarse hair 
• Fatigue
• High cholesterol 
• Hoarseness
• Can’t tolerate cold temperatures
• Heavy menstrual periods
• Numbness in the hands
• Soreness
• Unexplained weight gain 
• Puffiness around your eyes

Causes of Hypothyroidism 

There are many causes of hypothyroidism that you should be aware of to make an informed decision about your health, including a blood test for hypothyroidism levels. 

• Hashimoto’s Disease
• Certain Medications like aminodarone and thalidomide. 
• Absence of the thyroid gland from birth
• A thyroid gland that does not work properly 
• Iodine deficiency 
• Pituitary gland disorders 
• Thyroiditis 

Risk Factors Associated with Hypothyroidism 

Any male or female is most likely to develop hypothyroidism if they have the following health conditions: 

• Autoimmune disease like Hashimoto’s disease
• If one of the parents has hypothyroidism (genetic disposition)
• Pregnancy 
• Had a history of head and neck radiation therapy
• Started and discontinued certain medications

What are the complications associated with hypothyroidism?

Early diagnosis and accurate treatment for hypothyroidism can help prevent complications. Unless you have to face: 

• Goiter
• Infertility 
• Miscarriage or congenital disabilities
• Heart problems
• Peripheral neuropathy 
• Myxedema Coma is a rare condition that can affect multiple organs and even cause death.

Diagnosis and Tests 

A Blood Test for Hypothyroidism & More

A doctor may perform a physical examination to check if the glands are swollen to diagnose hypothyroidism. He will assess your health and ask a few questions, including medical history, to fully understand. 

A healthcare professional will perform a blood test for hypothyroidism after fasting. You may have to fast for 6-8 hours before the thyroid test. Otherwise, no special precautions need to be taken unless your doctor recommends. Blood will be taken from a vein, collected in a vial, and analyzed in the laboratory to get an accurate hypothyroidism diagnosis. 

The symptoms of an underactive thyroid can mimic other, unrelated health conditions. Therefore, an expert’s involvement is essential. Thyroid blood tests measure TSH, T3, and T4. 

Other Tests to Diagnose Hypothyroidism

Your doctor may also suggest other tests for hypothyroidism, which could include: 

• Ultrasound 
• CT (computed tomography)
• A nuclear medicine imaging called a thyroid Uptake scan. 

Management and Treatment 

How is hypothyroidism treated?

Once it is confirmed through a blood test for hypothyroidism fasting that you have the condition, it is crucial to see a doctor and get treated immediately.

Hormone Replacement Therapy

Hypothyroidism or an underactive thyroid can be treated with hormonal replacement tablets called levothyroxine. This medication replaces the hormones your thyroid cannot produce naturally. 

If suggested, consult your doctor about when to take the medicine and what dose is ideal for you. Most people consume it in the morning on an empty stomach to obtain maximum benefits. An overdose can even cause sweating, chest pain, diarrhea, and sickness. 

You might have to take medication for hypothyroidism for your entire life. Regular follow-ups, an active lifestyle, and a positive attitude can help you lead a normal and balanced life. 

How soon does Levothyroxine work?

Levothyroxine starts working immediately. However, it may take several weeks to show improvement in your symptoms. The symptoms are likely to come back if you skip your medicine. Additionally, taking a bigger dose than you need can increase your risk of side effects. 

Prevention 

Can we prevent hypothyroidism?

No. You cannot prevent hypothyroidism mainly because the cause of hormonal problems like thyroid disease is linked to genetics and autoimmune disorders, which cannot be stopped. 

Additionally, hypothyroidism causes depression, anxiety, fatigue, hoarseness, and drooping eyelids, creating an instant need for a doctor’s appointment. Early diagnosis and treatment can help reduce complications and allow you to live a healthy life. 

Outlook/Prognosis 

Can hypothyroidism be cured?

At present, there is no cure for hypothyroidism. If needed, healthcare professionals may suggest a hormonal replacement therapy (HRT) that can help manage hypothyroidism successfully. 

Is hypothyroidism a lifelong condition?

Yes. Hypothyroidism is a lifelong condition. If you receive the right medication, you can control your thyroid hormone levels. 

Outlook for Hypothyroidism

Regular follow-ups with the doctor, taking medications every day as prescribed, and living an active lifestyle, including no tobacco consumption and reduced alcohol intake, can help keep hypothyroidism in control. 

Living With 

When should I consult my healthcare professional?

Once you develop symptoms like unexplained weight gain, dry skin, fatigue, or depression, inform your doctor immediately. Any delay in the treatment of an underactive thyroid can cause complications, including fertility issues. 

Furthermore, you may see symptoms coming back after taking medications for hypothyroidism. Let your doctor know about it to help adjust the dosage. 

When should I go to the ER?.

Go to the emergency room (ER) if you develop the following symptoms: 

• Hypothermia (lower body temperature)
• So tired and no energy 
• Low blood pressure (hypotension)
• Slow heartbeat (bradycardia)
• Difficulty breathing

Book a doctor’s appointment immediately before the situation gets out of hand. These symptoms may also indicate myxedema, the more severe form that can cause swelling and thickening of the skin. Hence, you may need immediate treatment. 

Additional Common Questions

Can hypothyroidism occur during pregnancy?

Yes, pregnant moms are at an increased risk of developing hypothyroidism. If you are pregnant and diagnosed with primary hypothyroidism, it can cause infertility, gestational hypertension, and postpartum hemorrhage. 

Constant follow-ups with the healthcare provider, including thyroid function tests (TFTs) and medications, can help ensure a healthy pregnancy. 

Additionally, get in touch with your healthcare provider if you already have hypothyroidism and suspect you are pregnant. He will help manage the condition. 

Can hypothyroidism occur in children?

Hypothyroidism typically develops in adult life. Children and newborns can have congenital hypothyroidism. If your baby is born with congenital hypothyroidism, the treatment, especially in the first weeks of life, becomes crucial to prevent intellectual disabilities and developmental growth. 

Undiagnosed hypothyroidism may cause lethargy, a dry and itchy scalp, a high sensitivity to cold, and constipation. As the condition worsens, the child may develop stunted physical growth and mental retardation. 

Does hypothyroidism pass to children from their biological parents?

Yes. Hypothyroidism can be passed to children from their biological parents. The condition usually develops due to environmental factors, a sedentary lifestyle, iodine deficiency, or taking certain medications. 

Does hypothyroidism lead to weight gain?

Yes. Hypothyroidism can lead to weight gain. Once it is confirmed through a blood test for hypothyroidism levels that you have an underactive thyroid, your healthcare provider will begin a hormonal replacement therapy (HRT). The symptoms will start to eliminate and even out your hormone levels. 

Ask your healthcare provider about effective ways to help you lose weight. He may suggest exercises and nutrition that work for you. 

What happens if you do not treat your hypothyroidism?

If your hypothyroidism is left untreated, it can become a serious and life-threatening problem, such as myxoedema coma. 

During this condition, your thyroid hormone levels become very low, causing symptoms such as drowsiness, confusion, and hypothermia. If diagnosed, hospitalization may be needed. 

Can hypothyroidism cause anxiety?

Yes. Anxiety can occur due to hypothyroidism. It can make you sad and depressed. Consult your doctor and learn effective ways to reduce stress and practice mindfulness. 

A Note from Redcliffe Labs

Hypothyroidism can be life-threatening if left untreated. The best thing is that it gives you warning signs creeping into your everyday life. Weight gain, mood swings, brain fog, and fatigue are common symptoms of an underactive thyroid. 

You can call your doctor immediately. They can suggest a blood test for hypothyroidism levels, and other tests to reach a diagnosis and recommend an appropriate treatment plan to allow you to live a normal life. 

Step-by-step information on booking a blood test for hypothyroid online from Redcliffe Labs. 

1. Visit the official Redcliffe Labs website: https://redcliffelabs.com/.
2. Search for the specific test you need. 
3. Add the test to the cart. 
4. Complete the payment process online.
5. You will receive confirmation through SMS and WhatsApp.

Care at Redcliffe Labs 

Healthy India Ki Trusted Lab-Redcliffe Labs is a pan-India omnichannel service provider trusted by over 70 lakh Indians. Here, we serve every patient with family-like care, providing home sample collection and reports that meet 100% accuracy or a money-back guarantee. 

Redcliffe Labs offers a blood test for hypothyroidism levels and other thyroid-related issues, attributed to expert testing and honest pricing. 

So, why wait? Get yourself tested now!