Q. A 22-year-old woman comes to the clinic because of a persistent headache over the past 2 days that is worse in the morning and improves with standing. She reports episodes of double vision, pain behind her left eye, and vomiting. She takes oral contraceptives, iron supplements, and multiple vitamins. Last week she was diagnosed with walking pneumonia and a tetracycline course is prescribed for her. Her vital signs are within normal limits. Eye examination reveals papilloedema but her pupils are equal and reactive to light. The visual fields are full. Further examinations present normal results. Which of the following is correct regarding this case?