U.S. doctors online nowAsk doctors free
A 44-year-old female asked:

On my blood test for bacteria it says +. it has escherichia coli under test name. what does this mean?under antibiotic name it has ampicillin. r. meaning? it also has ceftriaxone. s. what does s mean?

1 doctor answer1 doctor weighed in
Dr. Heidi Fowler
Psychiatry 26 years experience
Talk with your Dr.: This really needs to be discussed with your doctor who is aware of your symptoms, history, physical examination and other study results. Blood cultures often show what organism was grown as well as which antibiotics they are resistant to and which they are sensitive too.
Last updated May 27, 2020


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.