Enterbacteriaceae

Question 1

H2S positive: black production
“Curious Engineers Produce Smoke.”

Answer 1

Citrobacter Freundii
Edwardsiella tarda
Proteus sp.
Salmonella enterica

Question 2

Non-motile: No Flagella, SIM test M: negative
“ lazy Kings Sit”

Answer 2

Klebsiella Pneumoniae
Shigella sp.

Question 3

Nonmotile at 37 degrees Celsius

Answer 3

Yersinia pestis

Question 4

Proteus sp.
Providencia sp.
Morganella morganii
“Pretty People Make Green”

Answer 4

Confirmation test is PDA-positive (Phenylalanine Deaminase–positive) organisms of the Enterobacterales family

Question 5

Enterobacter aerogenes (now Klebsiella aerogenes)
Klebsiella species
Serratia marcescens: DNase +
“Enter Klebs Spit Fire”

Answer 5

Voges–Proskauer Positive

Question 6

Clinical Implication: UTI

Answer 6

Most Common: Escherichia Coli
Proteus sp.
Providencia sp.
Morganella morganii

Question 7

Clinical Implication: Gastroenteritis

Answer 7

Providencia sp.

Question 8

Clinical Implication: Wound infection

Answer 8

Edwardsiella tarda

Question 9

Clinical Implication: Nosocomial Infections

Answer 9

SECK
Serratia
Enterbactor aerogenes
Citrobacter freundii
Klesibella pneumoniae
Most common: Citrobacter freundii & Enterbactor aerogenes

Question 10

Pneumonia in hospitalized patients

Answer 10

Klebsiella pneumoniae

Question 11

Wound infection from burns

Answer 11

Serratia marcescens

Question 12

bacillary dysentery: acute infection of the gastrointestinal tract

Answer 12

Shigella sp.

Question 13

Bacteremia, Typhoid fever

Answer 13

Salmonella sp.

Question 14

SEECK
“seeck and you shall see pink”

Answer 14

LF- pink growth
Serratia
Escherichia Coli
Enterbactor aerogenes
Citrobacter freundii
Klesibella pneumonaie

Question 15

MESS PP
“MESSing PP-pink”

Answer 15

NLF
Morganella Morganii
Edwardsiella tarda
Salmonella enterica
Shigella spp.
Proteus sp.
Providencia sp.

Question 16

Using only indole test to differentiate Proteus mirabilis and proteus vulgaris

Answer 16

Indole Test
Proteus mirabilis (-)
Proteus vulgaris (+)

Question 17

Oxidase Negative: no blue
Catalase Positive: Bubbles
Grows on Mac
GNR Non hemolytic

Answer 17

All Enterobacterales are

Question 18

Indole (+): Red/ pink color 🔴
“I MEEPP the bloody floor”

Answer 18

Morganella morganii
Escherichia coli
Edwardsiella tarda
Providencia sp.
Proteus vulgaris

Question 19

Citrate positive
“Purely Pretty Colored Skes” 🔵

Answer 19

Providencia sp.
Proteus vulgaris
Citrobacter freundii
Salmonella enterica
Klebsiella pneumoniae
Enterobacter aerogenes
Serratia marcescens

Question 20

Very mucoid colonies run together

Answer 20

Klebsiella pneumoniae

Question 21

Swarming growth

Answer 21

Proteus mirabilis

Question 22

Distinct indole odor

Answer 22

Escherichia coli

Question 23

Slow lactose fermenter

Answer 23

Serratia marcescens
Enterobacter Aerogenes

Question 24

Red wind pigment (prodigiosin)

Answer 24

Serratia marcescens

Question 25

Peritrichous flagella (motile); may produce a light capsule "SPEM is ocean food"

Answer 25

Salmonella spp. Proteus spp. Enterobacter aerogenes Morganella morganii

Question 26

bipolar “safety pin” staining

Answer 26

Yersinia pestis

Question 27

VITEK-confirmation test

Answer 27

Morganella morganii Edwardsiella tarda Proteus vulgaris Providencia spp. Serratia marcescens Enterobacter aerogenes Citrobacter freundii Salmonella spp.

Question 28

LIA: Does the organism have enzyme to deaminate lysine? PI/Y... PPM

Answer 28

PPD (Phenylalanine Deaminase) ~proteus spp. ~Providencia spp. ~Morganella morganii

Question 29

LIA: Does the organism have enzyme to decarboxylate lysine? P/P

Answer 29

Escherichia Coli- LF Edwardsiella tarda- NLF VP: Klebsiella pneumoniae- Enterobacter areogenes Serratia marcescens

Question 30

LIA: Does the organism NOT have enzyme to deaminate decarboxylate lysine? P/Y

Answer 30

Citrobacter freundii Shigella sp.

Question 31

TSI: Can organism ferment glucose and lactose &/or sucrose? just glucose

Answer 31

Morganella Morganii Edwardsiella tarda Proteus mirabilis Providencia sp. Salmonella enterica Shigella sp.

Question 32

TSI: Can organism ferment glucose and lactose &/or sucrose? Yes

Answer 32

Escherichia Coli Enterbactor aerogenes Citrobacter freundii Klesibella pneumonaie Proteus vulgaris

Question 33

Does organism produce sulfide? "you can not ESCP) Death"

Answer 33

Edwardsiella tarda Salmonella enterica Citrobacter freundii proteus

Question 34

Does organism produce Gas? yes "all E's Must SiCK"

Answer 34

Escherichia coli Edwardsiella tarda Enterbactor aerogenes Morganella morganii Serratia marcescens Citrobacter freundii Klesibella pneumonaie