A 35-year-old woman with Graves disease is treated with carbimazole. After 4 weeks she presents with fever, sore throat and malaise. On examination, t...

Question

A 35-year-old woman with Graves disease is treated with carbimazole. After 4 weeks she presents with fever, sore throat and malaise. On examination, temperature is 38.7 °C and she has pharyngeal erythema. Which investigation is most urgent to organise?

Accepted Answer

Full blood count with differential

Answer

Thyroid-stimulating hormone level

Answer

Free T4 level

Answer

C-reactive protein

Answer

Thyroid receptor antibody level

au-racp MCQ (SBA): Antithyroid drug-induced agranulocytosis

A 35-year-old woman with Graves disease is treated with carbimazole. After 4 weeks she presents with fever, sore throat and malaise. On examination, temperature is 38.7 °C and she has pharyngeal erythema. Which investigation is most urgent to organise?