A key symptom associate with this disease is 'rice water stool'.

What can you determine from this triple sugar iron slant?

A patient hooked their finger with a fish hook. Swelling and discharge appeared the next day and the wound was cultured.

BA: grey NH

Gram: Gram-negative bacilli

Oxidase: positive

What can you presume is the identification of this organism?

A technologist reported Escherichia coli based on the following test results.
Gram: gnb

Oxidase: negative

TSI: A/A gas

Motility = pos

Indole = pos

Lysine = pos

Urea = pos

Citrate = neg

What test needs to be repeated for this ID to be valid?

What culture media from a stool culture is incubated at 42°C?

Which of the following colonial morphologies is suggestive of Proteus mirabilis?

Identify the bacteria based on the biochemical reactions:

What member of Enterobactericeae would have this biochemical reaction?

Which of the following organisms will be motile at 37°C?

What would the O-F Glucose test result be for an organism with this TSI result?

Serratia marcescens is described as pigmented, making it impossible to determine lactose fermentation. What biochemical test can be used to determine its ability to ferment lactose?

Interpret this nitrate reductase test.

Note; Sulfanilic acid, a-napthylamine and zinc dust were added to the tube)

A shiny grey BH bacteria is growing on the BA and has a grape-like odor. What is the expected oxidase result?

Interpret this OF test result for Stenotrophomonas maltophlia.

What is the treatment of choice for Stenotrophomonas maltophilia?

Which Gram stain most closely resemble Acinetobacter baumannii?

A 5-year-old female is bit by her cat and presents to emergency with swelling and pus in the right index finger. What is the most likely pathogen for this source?

What test is used to differentiate between Haemophilus influenzae and Haemophilus parainfluenzae?

What is the identity of this organism that was isolated from a 3-month old baby that was unvaccinated?

An anaerobic bacteria growing on the VITK fluoresces chartreuse. What is the most likely identification of this organism?

Name the organism.

BA: no growth

CHOC: sm grey

Gram: Gram negative diplococci

Oxidase: positive

Carbohydrate Utilization: glucose pos; maltose neg; lactose neg; sucrose neg

Interpret the following aerotolerance test:
CHOC: sm grey

VITK: sm grey

Gram: Gram positive cocci

A Gram-negative cocci organism is Butyrate esterase positive. What is the likely identification.

Interpret the MIL

A smelly anaerobe is isolate on a VITK with the following results. What is the identification of the organism?

Gram: Gram positive bacilli, large

Reverse CAMP: negative

Nagler: negative

Toxin production: positive

An organism growing on VITK after 10 days shows white colonies that resemble a molar tooth. Sulfur granules were noted in the aspirate that was submitted.

What is the Gram stain of this organism?

Name the organism that was isolated from a urine sample:

BA: grey glistening NH, mucoid

MAC: LF mucoid

Oxidase: negative

TSI: A/A gas

Motility: nonmotile

Indole: positive

Lysine: positive

VP: positive

What organism would the DNase test be helpful at identifying?

What bacteria are empirically treated with penicillin? Select all that apply.

KVC disks are performed on Fusobacterium necrophorum. What are the expected results?

What is the presumptive organism ID?

BA: grey NH, lavender-green hue

Gram: gnb

Oxidase: negative

OF: Oxidizer

Nitrate: variable

Motility: motile

MAC: NLF

Which of the following is NOT true about Enterobacteriaceae?

A mannitol fermenter is seen on the Cefsulodin-Irgasan-Novobiocin agar. What biochemical test would help differentiate the stool pathogen from NF?

Shigella species can be identified by isolating its specific somatic antigens found on the cell wall. What type of antigens are these commonly known as?

A strain of Pseudomonas aeruginosa is identified as a Carbapenemase-Producing Organism (CPO). What antibiotic will be ineffective for treatment?

What biochemical test used to identify Enterobacteriaceae detects neutral-end products from glucose fermentation?

What biochemical test can help differentiate Peptostreptococcus anaerobius from other anaerobic Gram-positive cocci?