15th February 2024

A 34-year-old female has presented to her GP with increased sweats

A 34-year-old female has presented to her GP with increased sweats, heat intolerance and palpitations. Blood tests indicate elevated fT4 with low TSH levels. Her GP has started her on treatment. 2 weeks after starting her treatment, she began to experience fevers with a sore throat and difficulty swallowing. Blood tests showed reduced WCC with neutropenia.

What could be the underlying cause of the neutropenia?

Select the SINGLE most appropriate option from the list below. Select ONE option only.