Final answer:
Corynebacterium jeikeium is not rapid sucrose urea (RSU) positive as it does not rapidly ferment sucrose or hydrolyze urea.
Step-by-step explanation:
Regarding the question, "Is Corynebacterium jeikeium rapid sucrose urea (RSU)?" the answer is False. Corynebacterium jeikeium is a species of bacteria that is characterized by its resistance to many antibiotics and is known for causing nosocomial infections, particularly in immunocompromised patients. It is often tested for in clinical microbiology labs where various biochemical tests are used to identify bacterial species. One common biochemical test is the RSU test, which assesses the ability of a microorganism to rapidly ferment sucrose and hydrolyze urea. Corynebacterium jeikeium does not rapidly ferment sucrose or hydrolyze urea, and therefore it is not considered RSU positive.