MICRO-QUIZ2
Microbiology Mastery: Bacterial Infections Quiz
Test your knowledge on bacterial infections with our comprehensive quiz! This quiz covers important concepts in microbiology, focusing on the characteristics and infections caused by various bacterial species.
Features of the quiz:
- 11 detailed multiple-choice questions
- Covers clinical cases and laboratory identification
- Ideal for students, medical professionals, and microbiology enthusiasts
What is the cell and colony morphology of the bacterium shown?
Gram-positive cocci are shown in clusters and white, nonhemolytic colonies on blood agar plates.
Bacteria in chains, gram+
Bacteria in chains, gram -
A hemolytic on agar
Given that the bacterium is catalase positive and coagulase negative, what is the most important virulence factor it produces?
Toxic shock syndrome toxin
DNAase
Erythrogenic toxin
Extracellular polysaccharide material (slime), which enables the bacterium to produce biofi lms on prosthetic surfaces, is its most important virulence factor.
One month after undergoing hip replacement surgery, a 65-year-old man develops fever and malaise. The area of the replaced joint and incision is tender and erythematous. Blood cultures are positive for the bacteria shown. The responsible pathogen is catalase positive, coagulase negative, and novobiocin sensitive. What is the most likely etiology and infection?
Scarlet fever
The patient most likely has bacteremia and artifi cial joint infection caused by Staphylococcus epidermidis .
Food poisining
None of above
A 25-year-old woman, who is sexually active with a single partner, is seen by her primary care physician. Her complaints are dysuria, pelvic pain, and low-grade fever. Bacteria resembling those shown were cultured from the urine specimen. The cultured bacteria were catalase positive and coagulase negative. What is the most likely etiology and infection?
Cystitis by Step pneumonia
Cystitis caused by Staphylococcus saprophyticus
Pyleonephritis
Staph aureus toxic shock
When H 2 O 2 is added to a bacterial culture, gas bubbles are released, as shown. This test result indicates that the bacterium produces what enzyme?
Catalse
Superoxide dismutase
Peroidase
G6PD
A high school football player presents at his primary care physician’s offi ce with a lower extremity abrasion. Outward from the abrasion, the skin is swollen, erythematous, and painful. The lesion is cultured, which yields Gram-positive cocci in clusters. The resulting bacteria are catalase positive, coagulase positive, and methicillin resistant. What is the most likely etiology and infection?
Community-acquired MRSA caused by Staphylococcus aureus
Erythema marginatum by strep pneuminia
Scarlet fever
Impetigo by GABS
A child is presented to your clinic, the mother is worried because her son has been urinating a tea colored urine, in examination you noticed a child with puffy face and elevated blood pressure , the mother states that the child has had a sore throat one week ago, what is your next step?
1. Tell the mother to go home and her son will be okay
2. Suspect that the pt has acute poststreptococcal glomerulonephritis
3. The pt has scarlet fever
4. Tell the mother:"your son is going to die sorry Ms.^#&@" while smiling
Patient came to the hospital complaining from rash.. His rash is red raised with distinct border the doctor took a Biopsy from the lesion and it was restricted to the epidermes what is the most likley organism
1.catalase + and coaguslase +
2.catalse - coaguslase +
3.catalase - and optochin sensitive
4.catalse - and has a lancifid antigen
The doctor gave him penicillin as prophylaxis to protect him from
1.permenent joint damage
2.non permanent join damage
3.skin lesion
4.permenent heart damage
5.all of the above
1&4
Children came to the hospital complaining from fever disseminated joint pain and rash with red borders he had pharyngitis 2 weeks before what is the diagnosis
0%
0
0%
0
0%
0
0%
0
The power of the head of the games club in D-frag is
Earth
Fire & darkness
Water
Electricity
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