Case Report
        
        
            
        
        
        
Severe symptomatic acute hyponatremia in traumatic brain injury responded very rapidly to a single 15 mg dose of oral tolvaptan; a Mayo Clinic Health System hospital experience – need for caution with tolvaptan in younger patients with preserved renal function
        
        
        Macaulay Amechi Chukwukadibia Onuigbo 1 * , Nneoma Agbasi 2