Questions: Johnny was brought to the hospital showing a combination of symptoms consisting of fever, seizures, hallucinations, confusion, and anxiety. The doctor eventually diagnosed him with delirium tremens.

The answer is the fourth one: delirium tremens.

Explanation for each option:

1. Alcoholism: This is a chronic disease characterized by an inability to control drinking despite adverse consequences. While alcoholism can lead to various health issues, the acute symptoms described (fever, seizures, hallucinations, confusion, and anxiety) are more specific to a withdrawal syndrome rather than alcoholism itself.

2. Tolerance: This refers to the body's reduced response to alcohol over time, requiring more alcohol to achieve the same effect. Tolerance does not directly cause the acute symptoms listed in the question.

3. Cirrhosis: This is a late stage of scarring (fibrosis) of the liver caused by many forms of liver diseases and conditions, such as hepatitis and chronic alcoholism. While cirrhosis can lead to various health complications, the specific combination of symptoms in the question is not directly indicative of cirrhosis.

4. Delirium Tremens: This is a severe form of alcohol withdrawal that can occur in individuals with a history of heavy drinking. It is characterized by symptoms such as fever, seizures, hallucinations, confusion, and anxiety, which match the symptoms described in the question.

Summary: The symptoms Johnny is experiencing are characteristic of delirium tremens, a severe alcohol withdrawal syndrome.