Which two Gram negative enterics are typically Oxidase positive?

The Gram negative enteric Escherichia coli is the #1 cause of UTIs, about half the cause of Gram negative bacteremias, and what other conditions?

What best describes ETEC (enterotoxigenic E. coli) pathogenesis?

What best describes EPEC (enteropathogenic E. coli) pathogenesis?

What best describes EAEC (enteroaggregative E. coli) pathogenesis?

Your tech reports a case of person-person transmitted E. coli. PCR is positive for Stx 1 & 2, serology shows O157:H7, and microscopy shows hemorrhagic colitis. What is your diagnosis?

A culture shows mucoid colonies; indole test is negative; blaKPC PCR positive. What would the pathogen be?

What infections are expected of both Enterobacter and Citrobacter?

(Multiple answers) Aside from redness, what is characteristic of Serratia?

Which 3 bacteria are known for "stably derepressed" ampC plasmids?

Your tech reports a "swarmed" culture with a strong ammonia smell. What do you report?

What pathogen grows green on a Hektoen enteric agar due to lack of H2S and no sugar fermentation?

What pathogen grows black on a Hektoen enteric agar due to H2S?

What presentation would lead you away from Salmonella?

You're asked about the live oral vaccine Ty21a. The patient is traveling to a Salmonella endemic area in a month. What dosing do you recommend?

You're asked about the inactivated injection ViCPS. The patient is traveling to a Salmonella endemic area in a month. What dosing do you recommend?

You're notified of a Gram negative bug invading M cells in intestinal Peyer's patches eventually causing apoptosis. You suspect Shigella. What are the most reasonable tests to order?

Your tech hands you morphology results showing Gram negative bacteria growing in pairs that are mucoid, producing a grape odor, producing pigments, and expressing beta hemolysis. What do you suspect?

What are some of the intrinsic resistance mechanisms used by Pseudomonas?

Pseudomonas resistance using BL lysis, AG modification, and anti-fluoroquinolone enzymes are through what mechanism?

Your tech reports distinctly plump coccobacilli that are resistant on numerous E-Tests. The bacteria is noted to be taken from the oropharynx of a patient not currently showing symptoms of infection. What bacteria might this be?

Your hospital is having an uptick of MDR infections that are oxidase -, catalase + Gram negative aerobes. Other notable factors are remarkably small bacteria with polar flagella and causing pneumonia and wound infections after antibiotic exposure. What pathogen might it be?

You are performing media cultures to diagnose an obligate aerobe with flagella causing pulmonary infections in the immunocompromised. It is appearing yellow on both BCSA and OFPBL. What might it be?

There has been a bioweapons attack in your area and you're responsible for identifying the pathogen. Patients are experiencing lymphangitis, fever, sepsis, pneumonia, and skin lesions. What would lead you towards melioidosis (Burkholderia pseudomallei)?

You're evaluating a couple who recently traveled. One presents with rice-water diarrhea, vomiting, and hypovolemic shock. The other is completely healthy due to taking the live attenuated oral vaccine Vaxchora 10 days before exposure. What pathogen do you ask the lab to test for?

An immunocompromised patient you were treating for chronic liver and kidney diseases starts chatting with you at KMart. You notice they're not doing well and they have a developing bullae on their arm. They said they haven't been feeling well after eating some questionable oysters. What do you recommend they get checked for?

Which of the following rapid diagnostic tests is incorrectly matched?

Which of the following is an incorrect statement regarding beta lactamases?

Which of the following are strong inducers of cephalosporinase resistance?

What resistance enzyme group does KPC and OXA-48-like enzymes fall into?

You have identified a resistance mechanism in the cell wall of a sample. They are comprised of three proteins - inner, outer, and membrane fusion - and they actively transport out toxins. What have you found?

What best describes the common resistance mechanism for Septra?

What would be an incorrect statement for Mycobacterium?

Which of the following are rapidly growing Mycobacterium?

Which diagnostic is incorrect?

Listeriosis is most common in which of the following demographics?

You're watching a bacteria sample taken from a patient with concurrent GI and CNS symptoms from the same pathogen. You notice that it survives phagocyte attack and escapes vacuoles. The patient reports sickness following an outbreak at Jimmy Johns. What might this bacteria be?

You need to differentiate a sample between Nocardia and Actinomyces. The sample is a filamentous facultative G+ bacteria infecting the lungs. Which of the following would be correct assumptions?

You're evaluating a patient with walking pneumonia from a suspected atypical bacteria. The patient is elderly with asthma and positive serology to Chlamydia and Mycoplasma. It is noted that they are febrile and bradycardic without sepsis. What is the most likely pathogen?

Which of the following is not a feature of the order Enterobacterales?

What is the most common way to diagnose Rocky Mountain Spotted Fever (Rickettsia)?

Which of the following is an incorrectly matched common term - causative pathogen?

What is the major bacteria that requires a 2 step family specific and non-family specific testing regimen for diagnosis?

Your preceptor is asking you to diagnose an ID patient. They report severe neurologic decline over the past few years with lesions present on MRI. PMH shows non-specific cardiovascular disease. The lab reports a positive FTA-ABS and a positive VDRL. Microscopy shows spirochetes. What pathogen is causing this patient's symptoms?

Which of the following are likely producers of beta lactamases?

Your preceptor is asking you to diagnose an infection. The causative pathogen is an abnormal oral colonizer. The patient is a young adult recently diagnosed with mononucleosis and is now experiencing sepsis and multi-organ abscesses. What infection do you suspect?