QuestionSBA
QuestionChoice
This man likely has gout. A painful big toe (also known as podagra) is the classic presentation of gout. Negatively birefringent needle-shaped uric acid crystals are the most likely to be found on joint aspiration.
10003436
a
Negatively birefringent needle-shaped uric acid crystals
QuestionChoice
This man likely has gout. Positively birefringent rhomboid-shaped crystals are characteristically found in pseudogout, whilst negatively birefringent needle-shaped crystals are seen in gout.
10003439
d
Negatively birefringent rhomboid-shaped crystals
QuestionChoice
This man likely has gout. Dumbbell-shaped calcium oxalate stones are characteristically found in renal calculi (renal stones).
10003440
e
Dumbbell-shaped calcium oxalate stones
QuestionChoice
This man likely has gout. Positively birefringent rhomboid-shaped crystals are characteristically found in pseudogout.
10003438
c
Positively birefringent rhomboid-shaped crystals
QuestionChoice
This man likely has gout. Negatively birefringent needle-shaped uric acid crystals are the most likely to be found on joint aspiration.
10003437
b
Positively birefringent needle-shaped uric acid crystals
Concept
Chapter
2693
4163
Acute, hot swollen joint
Topic
146
Rheumatology
13234
A 46-year-old man presents to secondary care with an acute, hot, swollen big toe.

His current medications include paracetamol, bendroflumethiazide and ferrous sulphate.

What findings are you most likely to find on joint aspiration?
a