Lec 1: Introduction to Micro

Question 1

Name six cardinal signs and symptoms of nearly all infections?

Answer 1

calor, rubor, dolor, tumor, discharges, disturbance of function

Question 2

Which bacteria can cause pneumonia?

Answer 2

streptococcus pneumoniae (common in diabetics)

Question 3

Which bacteria is commonly found with infections of indwelling cathers and other similar devices in hospitals?

Answer 3

staphylococcus coagulase negative. aka coagulase-negative staph

Question 4

what is the catalase test? what does catalase do?

Answer 4

it is used to differentiate staphylococci (catalase-positive) from streptococci (catalase-negative)
is produced by bacteria that respire using oxygen, and protects them from the toxic by-products of oxygen metabolism.

Question 5

What are the two genus of gram positive cocci? how are they differentiated?

Answer 5

streptococcus and staphylococcus. the catalase test

Question 6

What diseases are commonly caused by streptococcus? and staphylococcus?

Answer 6

streptococcus-pneumonia, pharyngitis, cellulitis

staphylococcus-abscess of skin and other organs