All of the Following Are Possible Sources of Nosocomial Infection

Multiple Choice

All of the following are possible sources of nosocomial infection except

A) transfer of pathogenic microbes from a urethral catheter to a patient.
B) contamination of a surgical instrument in the surgical theater.
C) transfer of microbes through hand contact with a waitress in the coffee shop adjacent to the hospital.
D) placement of an image receptor against a patient wound during a portable examination.