A 70-year-old woman presents with sudden painless monocular vision loss. Giant cell arteritis is suspected. Which blood test supports the diagnosis?...

Question

A 70-year-old woman presents with sudden painless monocular vision loss. Giant cell arteritis is suspected. Which blood test supports the diagnosis?

Accepted Answer

Raised ESR/CRP

Answer

Low ESR

Answer

Normal CRP excludes GCA

Answer

Raised ferritin excludes GCA

Answer

Low platelets

mrcgp akt MCQ (SBA): GCA (investigation)