Micro - gram (+)

Question 1

Gram (+) cocci and bacilli

Answer 1

review photo chart of gram (+) bacteria

Question 2

Staphylococcus aureus

Answer 2

• gram (+) cocci; catalase (+), coagulase (+)

Question 3

Staphylococcus epidermidis

Answer 3

• gram (+) cocci; catalase (+), coagulase (-), novobiocin sensitive
• present: infection of indwelling medical device (eg. prostetic valve, joint, foley, IV)
• endocarditis of prosthetic heart valve within 60 days of replacement (after 60 days, think Viridans Strep)

Question 4

Staph saprophyticus

Answer 4

• gram (+), catalase (+), coagulase (-), novobiocin resistant
• present: UTI, cystitis
• most common causes of cystitis in young sexually active women: 1) E. coli, 2) S. saprophyticus