A 30 year old male presents to his doctor complaining that

Last updated: 3/13/2024

A 30 year old male presents to his doctor complaining that he feels like he is going to the bathroom 30 50 times a day and is always thirsty He also mentions that he has been having tunnel vision lately but has an appointment with his ophthalmologist this afternoon to get it looked at You suspect a hyposecreting pituitary tumor compressing the optic chiasm A tentative diagnosis of diabetes insipidus is made and you can confirm your diagnosis by expecting all of the following labs EXCEPT Select one O A Low serum osmolarity OB Low urine osmolarity OC Hypernatremia OD High serum osmolarity