Microbiologie Test

A 6-year-old boy presents to his pediatrician for sore throat and a headache. His symptoms
began approximately 2 days ago and have not improved. The boy appears uncomfortable and feels
warm. Physical examination is notable for perioral crusted lesions with tonsillar swelling with
exudates. Pharyngeal swap reveals Strep pyogenes as causal agent. Which of the following is true
about the pathogen?

A 19-y sexually active woman came to OPD having dysuria and pain when urinating. Urine
culture reveals Gram positive, catalase positive cocci. Which two lab tests would be most helpful to
distinguish the causal organism from other members?

A 55-year-old man came to IPD complaining of weakness, malaise, and cough. He has history of
smoking and social drinking. General condition upon admission was moderate: axillar temperature of
38 °C, respiratory rate of 21/min, SpO2 of 92%, heart rate at 90 beats/min, and blood pressure of
130/70 mm Hg. Bilateral pneumonia was suspected on chest-x ray. Culture of sputum showed
coagulase positive, Gram positive cocci. What factor is responsible for the problem?

What is the most common type of infection caused by Streptococcus pneumoniae?

60-man is hospitalized for pneumonia and urine catheter is placed. Patient feels better after 2
days, however he has dysuria and urgency. A urine culture reveals gramm+ in pairs and chain.
Antibiogram is resistant to vancomycin.What is most likely pathogen for this condition?

Streptococcus viridans can be differentiated from other haemolytic Streptococci on the basis of
its resistance to

A 4-year boy was admitted establish the diagnosis of a generalized skin rash and fever. The
family histories were not known because the boy was in care center from age of 2 months. The boy
experienced frequent upper respiratory infections and tonsillitis. Diffused epidermal exfoliation from
the face, thorax, members, and scalp were observed. What is most likely diagnosis for above
condition?

A 19-y sexually active woman came to OPD having dysuria and pain when urinating. Urine
culture reveals Gram positive, Coagulase negative and novobiocin negative cocci. What pathogen is
most likely causing the presenting problem?

A 17-year female was admitted complaining about a fever of 39.3oC and vomiting. She started
her menstrual period 4 days before she became ill. On the next day of admission, she had continued
fever, vomiting and loose stools. She was hypotensive of SBP of 78 & DBP 54 mmHg with a heart
rate of 120 beats per min. Physical exam found most prominent erythematous rash on her trunk.
Cultures were obtained from vaginal specimen show catalase positive, Gram positive cocci of
staphylococcus colonies. Which cytokines are responsible for systemic shock syndrome?

What are property of Staph aureus ?

Part of the success of the Streptococcus pyogenes bacterium lies in its ability to evade
phagocytosis. Which of the following helps in this evasion?

A 4-year boy was admitted establish the diagnosis of a generalized skin rash and fever. The
family histories were not known because the boy was in care center from age of 2 months. The boy
experienced frequent upper respiratory infections and tonsillitis. Diffused epidermal exfoliation from
the face, thorax, members, and scalp were observed. What is most likely pathogen for above
condition?

A 17-year female was admitted complaining about a fever of 39.3oC and vomiting. She started
her menstrual period 4 days before she became ill. On the next day of admission, she had continued
fever, vomiting and loose stools. She was hypotensive of SBP of 78 & DBP 54 mmHg with a heart
rate of 120 beats per min. Physical exam found most prominent erythematous rash on her trunk.
Cultures were obtained from vaginal specimen show catalase positive, Gram positive cocci of
staphylococcus colonies. Which pathogen is responsible the stated problem?

A 6-year-old boy presents to his pediatrician for sore throat and a headache. His symptoms
began approximately 2 days ago and have not improved. The boy appears uncomfortable and feels
warm. Physical examination is notable for perioral crusted lesions with tonsillar swelling with
exudates. Pharyngeal swap reveals gram positive cocci, with catalase negative and bacitracin
sensitive. Which Lancefield group the pathogen belongs?

Which of the following bacteria have been found to be most resistant to the drug vancomycin?

A 4-year boy was admitted establish the diagnosis of a generalized skin rash and fever. The
family histories were not known because the boy was in care center from age of 2 months. The boy
experienced frequent upper respiratory infections and tonsillitis. Diffused epidermal exfoliation from
the face, thorax, members, and scalp were observed. Culture of injured skin was positive for
Staphylococcus aureus. What factor is responsible for the problem?

A 65-old man transferred to ER having sudden nausea vomiting & confusion. Physical exam:
high fever 38.8C, Brudzinski positive and altered mental status. CSF Gramm stain reveals gramm+
lancet-shape diplococci. Which of the following is true about the pathogen?

A 39-y patient is on Central Venous Perfusion line in an ICU. Culture around the line grows
staph epidermidis. What is pathogenesis mechanism for this pathogen?

ការព្យាបាល Cholerae គឺ ៖

Citrobacter is sensitive to

Citrobacter ជាបាក់តេរី ៖

ការចម្លងរោគដែលបង្កអោយជា Cholerae តាមរយៈ :

Mycobacterium leprae ឆ្លងតាម ៖

Cholerae បណ្តាលអោយអ្នកជម្ងឺស្លាប់ដោយសារ ៖

ការធ្វើរោគវិនិច្ឆ័យ Cholerae ទាន់ពេលវេលា ដោយផ្អែកលើ ៖

ការចម្លងរោគដែលបង្កអោយជា Cholerae តាមរយៈ :

Mycobacterium Leprae ជាបាក់តេរី ៖

Klebsiella បង្កជម្ងឺ ៖

Cholerae បណ្តាលអោយអ្នកជម្ងឺស្លាប់ដោយសារ ៖

Serratia ជាបាក់តេរី ៖

Citrobacter freudii បង្កជម្ងឺ ៖

Serratia is sensitive to

Vibrio ជាបាក់តេរី ៖

Incubation period of Cholerae is

La cryptococcose est due une :