<prompt> All of the following are true about carcinoid crisis, EXCEPT:It is life threateningUrinary 5-HIAA levels 200 mgdCan be precipitated by anaesthesiaIt does not occur spontaneously  <response>: One of the most immediate life-threatening complications of the carcinoid syndrome is the development of a carcinoid crisis. This is more common in patients who have intense symptoms or have greatly increased urinary 5-HIAA levels i.e., 200 mgd. The crises may occur spontaneously or be provoked by stress, anesthesia, chemotherapy, or a biopsy. Patients develop intense flushing, diarrhea, abdominal pain, cardiac abnormalities including tachycardia, hypeension, or hypotension. If not adequately treated, this can lead to death. Ref: Endocrine Tumors of the Gastrointestinal Tract and Pancreas. In D.L. Longo, A.S. Fauci, D.L. Kasper, S.L. Hauser, J.L. Jameson, J. Loscalzo Eds, Harrisons Principles of Internal Medicine, 18e. 