Final answer:
High nonurine nitrogen loss can be caused by factors such as a rise in non-protein nitrogen in the blood, increased plasma protein concentration, kidney dysfunction, and certain dietary factors.
Step-by-step explanation:
High nonurine nitrogen loss can be caused by various factors. One possible cause is a rise in non-protein nitrogen in the blood. This can occur in conditions such as dehydration or fever, where the concentration of nitrogenous compounds in the blood increases. Another potential cause is an increase in plasma protein concentration, which can happen in conditions like malnutrition or liver cirrhosis. Additionally, kidney dysfunction or total renal failure can lead to high nonurine nitrogen loss. Lastly, certain dietary factors, such as high non-vegetarian diets, can also contribute to this condition.