A 45-year-old woman presents with a painful, swollen, red area on her right forearm that developed over the past two days. She reports a minor cut from gardening a few days ago. Examination reveals erythema, warmth, and tenderness, with purulent drainage from the wound. There is also a fluctuant mass beneath the skin.
Which of the following is the most likely causative organism?
Keep going — a set of ten like this one, one at a time.
Practise moreMore from Year 1
See allA 79-year-old man living in Western Australia has recently been diagnosed with a terminal lung disease. He lives alone, receives the age pension, and holds a va…
Foundations · middle twist
In a study of community-dwelling individuals, researchers observe varying prevalence rates of asymptomatic bacteriuria.In which of the following populations is…
Foundations · common
A 70-year-old man presents with dysuria, a slow urinary stream, and a feeling of incomplete emptying. Urinalysis shows leukocytes and nitrites. He is afebrile a…
Mechanisms of disease · common
A 21-year-old woman presents to the GP with urinary urgency, suprapubic discomfort, and dysuria. This is her third similar episode in the past year. She does no…
Mechanisms of disease · middle twist
A 36-year-old man presents with 2 days of fever, nausea, abdominal cramps, and watery diarrhoea after returning from a trip to Bali. He ate street food and dran…
Foundations · middle twist