Micro exam 2023 part 1

Generate an informative and engaging image that represents microbiology, featuring elements such as bacteria, fungi, and medical symbols in a clinical setting.

Micro Exam 2023: Part 1

Test your knowledge on microbiology with our comprehensive quiz designed for students and professionals alike. With 30 challenging questions, delve into various topics including pathogens, fungal infections, and resistance phenotypes.

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30 expertly crafted questions
Immediate feedback on your answers
Perfect for reviewing your microbiology knowledge

30 Questions8 MinutesCreated by AnalyzingMicrobe452

Choose strict anaerobic microorganisms most commonly found in the large intestine of a healthy individual:

Eubacterium, Enterococcus, Porphyromonas

Blastocystis, Bacteroides, Trichomonas

Propionibacterium, Streptococcus, Acinetobacter

Corynebacterium, Staphylococcus, Candida

Fusobacterium, Bacteroides, Prevotella

Which of the resistance phenotypes refers to MRSA?:

Susceptible to penicillin G, aminopenicillins, ureidopenicillins, and carbapenems

Susceptible to vancomycin

Resistant to amoxicillin, cloxacillin, and imipenem

Resistant to natural penicillins and aminopenicillins, susceptible to IIIrd generation of cephalosporins

Resistant to all penicillins, susceptible to carbapenems

Which marker/s is/are directly detected in the patient's serum in the diagnosis of fungal invasive infections:

Candida – galaktomannan

Aspergillus – galaktomannan

Cryptococcus neoformans – capsular polysaccharides

Candida-mannan

Cryptococcus neoformans – pseudohyphae in direct microscopy

Choose the incorrect statement regarding dimorphic fungi:

Are responsible mostly for superficial and localized infections

Yeast forms occur in infected tissue

Laboratory diagnostic is based on microscopic observation and culturing

Coccidioides immitis is one of its representatives

Found in the environment in endemic countries

Choose the incorrect statement regarding aflatoxins:

Are carcinogenic

Are found in peanuts and cereal grains

Brain is its primary target organ

Are the cause of mycotoxicoses

Are produced I.a. by Aspergillus spp

Choose the correct statement regarding syphilis:

Is caused by spirochetes (30μm – 60 μm) observed by dark-field microscopy

Penicillin is a drug of choice used to treat the infection

Humans are the only natural hosts of T. pallidum

Treponema carateum is its etiological factor

Serology is very sensitive in the primary stages of the disease

Choose the correct statement regarding cholera:

Etiological agent: facultatively anaerobic Gram-negative rods

The exotoxin leading to hypersecretion of water and electrolytes is responsible for the clinical manifestation of the disease

Affects only immunocompromised individuals

Spreads mainly via contaminated water and contaminated food products

Antibiotic therapy plays a minor role, azithromycin is mainly used

Which of the following statements refers to CPE-NDM strains:

Are mostly the cause of infections within ambulatory patients

Produces D class of carbapenemases

Treatment management of infections mainly includes glycopeptides

Are an alert pathogens which transmission requires strict sanitary management in health-care facilities

Are susceptible to carbapenems

Asymptomatic bacteriuria:

Requires treatment regardless of the patients' risk factors

It’s a significant bacteriuria without clinical symptoms of UTI

Is caused most commonly by non-fermentative Gram-negative rods

Is often observed in long-term catheterized patients

Always treated in pregnant women

Bite wound infections are caused by the etiological agents listed below except:

Choose incorrect statement regarding CMV infections:

Virus causes lifelong infection

Virus is not transmitted sexually

Virus is present in blood, organ transplants, and all secretions

In premature infants, may cause pneumonia as a consequence of perinatal infection

Is the cause of I.a. cytomegaly

Choose the most common etiological agents of hospital-acquired pneumonia in ICU patients:

Echinocandins:

Bind to ergosterol causing direct oxidative membrane damage

Are not active against Candida glabrata and Candida krusei

Inhibit 1,3 – beta-glucan synthesis in fungal cell membrane

Are active against Cryptococcus neoformans

Inhibit 1,3 – beta-glucan synthesis in fungal cell wall

Which toxin is associated with hemolytic-uremic syndrome (HUS):

Verotoxin of Escherichia coli

Cytotoxin of Clostridium difficile

Enterotoxin of Bacillus cereus

Enterotoxin of Clostridium perfringens

Enterotoxin of S. aureus

Superficial and cutaneous fungal infections are caused by:

Tick-borne diseases include:

Campylobacteriosis, tularemia

Tularemia, infectious mononucleosis

Erysipeloid, Q fever

Spring-summer encephalitis, Lyme disease

Pasteurellosis, Legionnaires’ disease

Clinical diagnosis of vaginal candidiasis requires the following criteria (choose correct):

Blastospores and invasive forms of fungus in direct smear

Fishy odor of vaginal discharge

Clue cells in direct smear

White, "cottage cheese-like" vaginal discharge

Green and frothy vaginal discharge

Available vaccines containing anatoxin are those against:

Corynebacterium diphtheriae, Clostridium tetani

Salmonella Typhi, Vibrio cholerae

Corynebacterium diphtheriae, Streptococcus pneumoniae

Mycobacterium tuberculosis, Haemophilus influenzae

Vibrio cholerae, Neisseria meningitidis

Which of the following statement/s refer/s to Helicobacter pylori:

Localized stomach tissue damage is mediated by mucinase, phospholipases, and vacuolating cytotoxin A

Humans are its primary reservoirs

Biopsy specimens are tested for the presence of bacterial urease activity

Guillain–Barre syndrome may be the consequence of infection

Amoxicillin and ciprofloxacin are used for treatment

Choose correct statement regarding antiviral therapy:

Interferons activate viral protein synthesis in infected host cells

Ribavirin is active against RSV and Lassa virus

Amantadine is a nucleoside analogue used to treat Influenza A infection

Ribavirin is an HIV protease inhibitor

Acyclovir is active only against HHV-1, cannot be used in the treatment of herpes meningoencephalitis

Choose correct statement:

H. Influenzae is never the cause of arthritis

LSP core antigen induces meningeal inflammation in humans

Epiglottitis is mostly caused by nonencapsulated strains of H. influenzae

Most of Haemophilus influenzae type b invasive infections occur in children who are not vaccinated

Haemophilus ducreyi causes sexually transmitted infection characterized by the painless papule with the erythematous base

Choose incorrect statement regarding Lactobacillus:

Is facultatively or strictly anaerobic bacterium

Are found as part of the microbiota of mouth, stomach, intestines, and genitourinary tract

Strains are used as probiotics

Is susceptible to vancomycin

May cause transient bacteremia from genitourinary source after gynecologic procedures

Choose correct regarding whooping cough:

Infection is caused by rapidly growing, microaerophilic bacteria

Disease spreads by infectious aerosols

Systemic toxicity is mediated by pertactin

Detection of IgG and IgA can be used as confirmatory tests

Disease is most common in the vaccinated population of young children and young adults

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Micro exam 2023 part 1

Micro Exam 2023: Part 1

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