All of the following cause metabolic headache except:: (A) Hypoxia, (B) Hypercapnia, (C) Hyperglycemia, (D) Hyponatremia
Answer is C. Hypoxia Causes cerebral vasodilation --> headache. Hyperglycemia Hyperglycemia does not present as headache Hypercapnia Cause cerebral vasodilation and stretching of meninges. Hyponatremia Cerebral edema leads to a headache and seizures.