Spneumoniae Was Isolated from a Spinal Fluid Sample from an Inpatient.An

Multiple Choice

S.pneumoniae was isolated from a spinal fluid sample from an inpatient.An oxacillin disk screening test was performed and the zone of inhibition measured 19 mm.Which action is most appropriate?

A) Call patient's physician and report the isolate as oxacillin-resistant;no further work-up required.
B) Repeat testing to confirm the identification of the isolate and qualitative susceptibility profile.
C) Report the isolate as penicillin-resistant;inform infection control and patient's physician.
D) Do E-test and report quantitative MIC result and interpretive category using meningitis MIC criteria.