Gram stain

Question 1

Staph is gram____

Answer 1

• positive

Question 2

Staph can be further divided into what? and name examples?

Answer 2

coagulase + ve (s. aures)

coagulase - ve (s.epidermidis, s.saprophyticus)

Question 3

Strep is gram____

Answer 3

• positive

Question 4

Strep can be further divided into?

Answer 4

• a haemolytic (green)
• b haemolytic (complete)
• gamma haemolytic (none)

Question 5

Name alpha haemolytic strep

Answer 5

• pneumonia

- viridian’s

Question 6

Name some beta haemolytic strep

Answer 6

• s. pyogens (GAS)

- s. agalcitae (GBS)

Question 7

Name gamma haemolytic strep?

Answer 7

• enterococcus faecalis

Question 8

n.gonnorhea is?

Answer 8

• gram negative diplococci

Question 9

Gram negative bacilli can be further divided into?

Answer 9

• lactose fermenting

- non-lactose fermenting

Question 10

Name lactose formenting bacilli?

Answer 10

• e.coli
• klebsiella
• enterobacter

Question 11

Name non-lactose fermenting bacilli?

Answer 11

• shigella
• proteus
• salmonella
• pseudomonas

Question 12

H.influenzae is?

Answer 12

• gram negative cocobacilli

Question 13

H.pylori is? and releases?

Answer 13

• gram negative

- urease producing

Question 14

What drug purely targets gram negative bacteria?

Answer 14

• gentamicin

Question 15

What drug purely targets gram positive bacteria

Answer 15

• vancomycin