240) A 55 year old woman is evaluated in the emergency room for acute development of double vision and droopy right eyelid. She also reports pain in her right eye. She denies any fever. She has no significant past medical history. On physical examination, she is afebrile and her blood pressure 132/88 mm Hg. Head and neck examination reveals ptosis of the right eyelid. Pupillary light reflex is lost. She can not adduct her right eye past the midline. The right eye is deviated downwards and laterally as shown in the picture below. There is no sensory loss on her face and the function of her other facial muscles are intact. Power is normal in all her extremities and deep tendon reflexes are intact.
The most appropriate next step in management?
A) Temporal artery biopsy
B) Obtain Erythrocyte Sedimentation Rate
D) Magenetic Resonance Angiography (MRA)
E) Ptosis Surgery