Thyroid function tests can reveal unexpected biochemical hyperthyroidism, even in patients without overt clinical signs.
In this case study, a young woman presents with suppressed TSH and elevated FT4 and FT3, prompting consideration of causes such as Graves’ disease, thyroiditis, pregnancy-related changes, and nodular thyroid disease. The course walks through appropriate next steps, including antibody testing and radionuclide uptake scanning, and explains how low tracer uptake supports a diagnosis of painless thyroiditis.
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Interpret suppressed TSH with elevated FT4 and FT3
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Recognise the impact of pregnancy and HCG on thyroid function tests
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Differentiate painless thyroiditis from Graves’ disease
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Understand the typical progression of thyroiditis
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Understand the role of radionuclide uptake scans in diagnosis
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Develop a structured follow-up and monitoring plan
