MRCP2-4681

MRCP2-4681

A 65-year-old woman presents with a one-month history of non-specific malaise. She reports stiffness, particularly in the mornings, and difficulty lifting her arms to comb her hair. She experiences constant aching in her arms and shoulders and jaw pain when chewing. She has also lost 4 kg in weight and has a persistent headache. She smokes 10 cigarettes a day and drinks 10 units of alcohol per week. On examination, her temperature is 38°C, pulse is 84 beats/min, and BP is 125/80 mmHg. Investigations reveal abnormal blood results. What is the most appropriate next step in her evaluation?