Which laboratory tests are essential for confirming a diagnosis of thyroid storm in a primary care setting?

The provided UK guideline, 'Thyroid disease: assessment and management' ¹, does not specifically detail essential laboratory tests for confirming a diagnosis of thyroid storm in a primary care setting.

The guideline focuses on tests for suspected thyroid dysfunction, such as measuring thyroid-stimulating hormone (TSH), free thyroxine (FT4), and free tri-iodothyronine (FT3) ¹. For confirmed thyrotoxicosis, it outlines tests to differentiate between hyperthyroidism with and without hyperthyroidism, including measuring TSH receptor antibodies (TRAbs) and considering technetium scanning ¹. Thyroid peroxidase antibodies (TPOAbs) are also mentioned for children and young people with thyrotoxicosis ¹. However, these are for general thyrotoxicosis and not specifically for the acute, severe presentation of thyroid storm ¹.