Symptoms
Symptoms of Hypothyroidism (Underactive Thyroid):
Fatigue or sluggishness
Weight gain
Cold sensitivity
Dry skin or hair loss
Depression or memory problems
Constipation
Symptoms of Hyperthyroidism (Overactive Thyroid):
Unexplained weight loss
Rapid heartbeat or palpitations
Nervousness, anxiety, or irritability
Increased sweating
Heat sensitivity
Tremors or shakiness
Difficulty sleeping
See a doctor
You should see a doctor for a thyroid function test if you:
Experience symptoms of either hypothyroidism or hyperthyroidism (such as fatigue, weight changes, or heart palpitations).
Have a family history of thyroid disorders.
Are pregnant or planning to become pregnant (thyroid health is essential during pregnancy).
Have a history of autoimmune disorders (like Hashimoto’s thyroiditis or Graves’ disease).
Are taking medications that can affect thyroid function (e.g., lithium or amiodarone).
Are experiencing difficulty with regulating body temperature, mood swings, or unusual hair loss.
FAQ
Q: Why would I need a thyroid function test?
A: You may need this test if you show symptoms of an overactive (hyperthyroidism) or underactive thyroid (hypothyroidism). It is also used to monitor thyroid conditions or screen for thyroid issues during routine health checks.
Q: How is the test performed?
A: A thyroid function test is done by taking a small sample of blood, typically from a vein in your arm, to measure the levels of thyroid hormones and TSH.
Q: Do I need to prepare for the test?
A: Generally, no special preparation is required. However, inform your doctor about any medications or supplements you are taking, as some can affect the test results.
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