Triple Sugar Iron Agar (TSI)

Question 1

What is the abbreviated reaction for this TSI result?

Answer 1

A/A (Acid/Acid)

Question 2

What is the abbreviated reaction for this TSI result?

Answer 2

A/A, H2S (Acid/Acid)

Question 3

What is the abbreviated reaction for this TSI result?

Answer 3

K/A (Alkaline/Acid)

Question 4

What is the abbreviated reaction for this TSI result?

Answer 4

K/A, H2S

Question 5

What is the abbreviated reaction for this TSI result?

Answer 5

K/A, H2S

Question 6

What is the abbreviated reaction for this TSI result?

Answer 6

K/NC (Alkaline/No Change)

Question 7

A TSI result of A/A means what carbohydrate was metabolized? (2)

Answer 7

Either lactose or sucrose

Question 8

Which enterics have a TSI result of A/A?

Answer 8

Escherchia coli (L)
Klebsiella (L)
Enterobacter (L)
Serratia (S)
Yersinia (S)

Question 9

Which enterics have a TSI result of A/A, H2S?

Answer 9

Proteus vulgaris
Citrobacter

Question 10

Which enterics have a TSI result of K/A?

Answer 10

Shigella
Providencia
Morganella
Plesiomonas shigelloides

Question 11

Which enterics have a TSI result of K/A, H2S?

Answer 11

Salmonella
Proteus mirabilis

Question 12

Which enterics have a TSI result of K/NC?

Answer 12

Pseudomonas aeruginosa
Acinetobacter