A member of the health care team is researching the etiology and pathogenesis of a
number of clients who are under his care in a hospital context. Which of the following
aspects of clients' situations best characterizes pathogenesis rather than etiology?
A) A client who has been exposed to the Mycobacterium tuberculosis bacterium
B) A client who has increasing serum ammonia levels due to liver cirrhosis
C) A client who was admitted with the effects of methyl alcohol poisoning
D) A client with multiple skeletal injuries secondary to a motor vehicle accident

The pathogenesis of the disease can be define as the biological mechanism responsible for the development of symptoms of the disease. The term of development of symptoms can be acute, or chronic.

The etiology is the fact finding study of the cause of the disease which can intrinsic that is dependent on the disease causing organism present in within the organism. Extrinsic factors such as chemical, animal bite or sting, pathogen invading from the external environment.

A. is the correct option because it is directly relating to the infection caused by the bacterium which is a pathogen responsible for development of disease in the client.