During detoxification, the nurse prepares for diagnostic testing primarily to assess the functioning of which organ?

The correct answer is the liver because it plays a critical role in the detoxification process. During detoxification from substances such as alcohol or drugs, the body metabolizes these substances, and the liver is primarily responsible for this process. It breaks down toxic substances so they can be excreted from the body safely.

As a result, routine assessment of liver function is essential during detoxification to monitor any potential damage or stress on this organ, as substance abuse can lead to liver inflammation, fatty liver disease, or hepatitis. By evaluating liver functions – typically through enzyme levels and other tests – healthcare providers can gauge the extent of the impact substances may have had on the individual’s health and adjust treatments accordingly. This attention ensures patient safety and aids in achieving a successful recovery.

Other organs like the kidneys also play a role in the detoxification process by filtering and excreting waste products, but the liver's specific and crucial involvement in metabolizing substances makes it the primary focus in this context.