Question

which type of disease produces symptoms for which no physiological or anatomical cause can be identified?
a. infectious disease
b. nosocomial infection
c. functional disorder
d. idiopathic disorder

Explanation:

• Infectious diseases are caused by pathogens like bacteria/viruses, with identifiable physiological causes.
• Nosocomial infections are hospital-acquired infectious diseases, with clear infectious causes.
• Functional disorders involve symptoms with no identifiable anatomical/physiological structural cause, but this term is less specific to the "no identifiable cause" definition here.
• Idiopathic disorders are defined as conditions where symptoms occur without any identifiable physiological or anatomical cause.

Answer:

d. Idiopathic disorder