Final answer:
The recognized tertiary prevention intervention is administering antibiotics to a client with AIDS and Pneumocystis jirovecii to manage and reduce complications of the established disease.
Step-by-step explanation:
The intervention that should be recognized as tertiary prevention is d. Administering abx to a client who has AIDS and was diagnosed with Pneumocystis jirovecii. Tertiary prevention focuses on managing the disease to prevent further deterioration and to minimize complications after a disease is already established. In this case, treating Pneumocystis jirovecii in a client with AIDS represents an effort to manage the condition and improve quality of life. This is in contrast to primary prevention, which aims to prevent the disease from occurring, and secondary prevention, which focuses on early detection and prompt treatment to halt the progression of the disease.
Addressing Marsha's suspected tuberculosis (TB) would be an example of secondary prevention, where early detection and isolation prevent the spread of TB to others. Similarly, educating patients about behaviors that risk HIV transmission, implementing needle exchange programs, and providing prophylactic treatment after unanticipated exposure to infected blood are primary prevention strategies aimed at reducing the incidence of HIV.