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OTC ER and Treatment Letters

Click below to access PDF letters from Dr. Nicola Longo, MD, PhD, that can be taken to your health care provider.

Contact your health care provider


Intermountain Medical Center has recently added specific computer codes to assist medical professionals in diagnosing ornithine transcarbamylase (OTC) deficiency. These computer enhancements will allow doctors to enter the patient’s problem list, either as “this visit” or “chronic” problems. As a result, doctors will be notified of the connection between “high risk problems and diagnoses” and OTC deficiency. Please refer your doctor to this Jane Wright Earl OTC website as a resource for important information about diagnosing and treating OTC. 

Additional institutions will be added as they become available


OTC Diet

Diet requirements are very specific to the Jane Wright Earl OTC gene mutation. Affected individuals need to work with the Metabolic Clinic to determine the appropriate dietary restrictions if needed. Recommended diets are evaluated on a case-by-case approach, and are based on the patients’ blood ammonia level.