A nurse is caring for a patient who is suspected of having giant cell arteritis (GCA). What laboratory tests are most useful in diagnosing this rheumatic disorder? Select all that apply.

Question

Quizplus · Accepted Answer

Simultaneous elevation in the ESR and CRP have a sensitivity of $88 \%$ and a specificity of $98 \%$ in making the diagnosis of GCA when coupled with clinical findings. Erythrocyte counts, creatinine clearance, and D-dimer are not diagnostically useful.

A Nurse Is Caring for a Patient Who Is Suspected