Microscopy PPT Version 2

Question 1

Clinical Utility of a Gram stain

Answer 1

-Directly examine material to make a dx -determine quality of specimen -suggest an unusual organism or provide early presumptive bacterial ID -verify clinical relevance of culture

Question 2

What organisms stain well under acid fast?

Answer 2

Mycobacteria
Nocaria
Cryptosporidia
Cyclospora

Question 3

Nocardia Gram stain?

Answer 3

Beaded Gram positive

Question 4

Actinomyces Gram stain?

Answer 4

Branched Gram positive rods

Question 5

Neisseria meningitidis Gram stain?

Answer 5

Gram negative diplococci

Question 6

Streptococcus pneumoniae Gram stain?

Answer 6

Gram positive diplococci

Question 7

Staphylococcus aureus Gram stain?

Answer 7

Gram positive cocci in clusters

Question 8

E coli gram stain?

Answer 8

Gram negative rods

Question 9

Campylobacter Gram stain?

Answer 9

Curved bacteria. S-shapes, W-shapes, like birds on a horizon. Gram negative