<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 35-year-old male is brought to the emergency room after he was found to have a blood pressure of 180100 mm Hg during a routine health check-up with his family physician. Past medical history is insignificant and both of his parents are healthy. He currently does not take any medication. The patients blood pressure normalizes before the emergency department physician can evaluate him. During the physical examination, his blood pressure is 14880 mm Hg, heart rate is 65min, temperature is 36.8C 98.2F, and respirations are 14min. He has a round face, centripetal obesity, and striae on the skin with atrophy over the abdomen and thighs. On visual field examination, he is found to have loss of vision in the lateral visual fields bilaterally You order a low dose dexamethasone suppression test, which is positive, and you proceed to measure ACTH and obtain a high-dose dexamethasone suppression test. If this is a pituitary gland disorder, which of the following lab abnormalities is most likely present in this patient?? A: Before test: ACTH high, after test: aldosterone suppression, B: Before test: ACTH low, after test: cortisol elevation, C: Before test: ACTH high, after test: cortisol suppression, D: Before test: ACTH low, after test: aldosterone normalizes, E: Before test: ACTH high, after test: cortisol elevation,  <response>: This is a question about Cushings syndrome. The patient has signs and symptoms suggestive of Cushings syndrome, including high blood pressure, centripetal obesity, striae, and proximal muscle weakness. The question asks about lab abnormalities that would be seen if this is caused by a pituitary tumor Cushings disease. In Cushings disease, a pituitary tumor secretes excess ACTH, which stimulates the adrenal glands to produce excess cortisol. On a low dose dexamethasone suppression test, cortisol levels will fail to suppress in Cushings disease. On a high dose dexamethasone suppression test, cortisol levels will suppress with a pituitary tumor since the high dose overrides the tumors ACTH production. In Cushings disease, ACTH levels are elevated due to excess secretion from the pituitary tumor. After the high dose dexamethasone suppression test, cortisol levels will be suppressed since dexamethasone overrides ACTH stimulation of cortisol.C: Before test: ACTH high, after test: cortisol suppression 