Any substance that is present in excess and is not needed by the body or any substance that is useless to the body is referred to as waste. Any unwanted substance that is produced by the body is referred to as metabolic waste. Small nitrogen-containing compounds are one of the most toxic metabolic wastes, and it is referred to as the nitrogenous wastes. Nitrogenous waste includes ammonia, uric acid, and urea. The normal range of ammonia in the blood is about 15 to 45 µ/dL.

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Chapter 23, Problem 3TYR

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Any substance that is present in excess and is not needed by the body or any substance that is useless to the body is referred to as waste. Any unwanted substance that is produced by the body is referred to as metabolic waste. Small nitrogen-containing compounds are one of the most toxic metabolic wastes, and it is referred to as the nitrogenous wastes. Nitrogenous waste includes ammonia, uric acid, and urea. The normal range of ammonia in the blood is about 15 to 45 µ/dL.

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