Exam (elaborations)

microbiology question and answers 2024

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Microbiology

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Microbiology

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Uploaded on June 12, 2024
Number of pages 119
Written in 2023/2024
Type Exam (elaborations)
Contains Questions & answers

from the oral cavity of clinically healthy man at

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From the oral cavity of clinically healthy man at the age of 25 years old, physician
has identified the culture of Gr + cocci, which are somewhat elongated, arranged in
pairs or short chains, form a capsule, on blood agar yield of alpha-hemolysis. Is this
man a carrier of some kind of pathogen of microorganism?
Streptococcus pneumoniae
Streptococcus pyogenes
Streptococcus salivarium
Streptococcus feacalis
Peptostreptococcus

Staphylococcus strain, which caused an outbreak of nosocomial diseases, showed
high resistance to penicillin. Which of the following factors is associated with
resistance of microorganisms?
Synthesis of beta-lactamase
Synthesis of adenyltransferase
Change of cell wall components
Change of ribosomal proteins
Phosphotransferase synthesis

Child with a diagnosis “staphylococcal sepsis” was been hospitalized. On what
medium is necessary to inoculate a patient`s blood for purpose of causative agent
revealing?
Sugar-and-peptone broth
Meat-and-peptone agar
Ploskirev’s medium
Buchin’s medium
Yolk-saline agar

Confinement to bed patient has a rise in temperature of body, cough occurrence with
a lot of sputum secretion, pain in the chest. Gr“+” cocci, located in pairs were
revealed in the sputum. What microorganism is the most probable agent of infection?
Legionella pneumophilla
Staphylococcus aureus
Klebsiellа pneumonia
Mycoplasma pneumonia
Streptococcus pneumoniае

Enteritis-ill child`s excrements were emulsifying in physiological solution, and drop
of emulsion was inoculated on selective media: 10% milk-saline or yolk-saline agar
or mannitol-salt agar. What microorganisms are provided to allocate?
Staphylococcі
Coliform bacillі
Streptococcі
Klebsiella
Enterococcі

,Children and staff of the kindergarten were taken to hospital to identify
meningococcal carriers. Choose the method of microbiological investigation.
Biological
Allergic
Bacterioscopic
Bacteriological
Serological

There are cases of purulent postoperative complications of the streptococcal nature
which have become frequent in a surgical hospital. How to determine a source of a
streptococcal infection in a hospital?
Determination of phagovaries
Determination of serovaries
Determination of enzymes
Determination of biovaries
Determination of sensitiveness to antibiotics

During the bacteriological tests of the purulent secreta from urethra, there were found
bacteria, which according to Gram were negatively staining, looked like coffee beans.
These bacteria were splitting glucose and maltose to acid, they were located inside
the leucocytes. Name these microorganisms.
Trichomonas vaginalis
Chlamidia trachomatis
Haemophilus vaginalis
Neisseria gonorrhoeae
Calymmatobacterium granulomatis

A bacteriological research of nasopharyngeal mucus is conducted. At
bacterioscopical research the presence of gram-negative cocci which remind coffee
beans and located by pairs and tetrads was determined. Name an aetiological agent
which was revealed by bacteriologist.
Stаphyloсoссus аurеus
Асinеtobасtеr саlсoасеtiсus
Neisseria gonorrhoeae
Morаxеllа lасunаtа
Neisseria menigitidis

Gr“-“ diplococci, having the same form as coffee beans were revealed during
bacterioscopical research of nasopharyngeal mucus of 2,5-year-old child with
nasopharyngitis. What organs of child most probably will be affected firstly if these
microorganisms get to blood?
Renal glomerules
Mitral valves
Meninges
Urogenital tract
Lymphatic nodes

,A doctor-ophthalmologist examined a sick child with the phenomena of purulent
cerato-conjuctivitis and supposed that it is a blenorrhea. What methods of laboratory
diagnostics can be used to confirm the diagnosis?
Microscopic and biological
Microscopic and bacteriological
Microscopic and phage diagnostics
Bacteriological and biological
Phage diagnostics and allergic

A doctor diagnosed “meningococcal nasopharyngitis” to the child with
nasopharyngitis. What method of laboratory diagnostics is the best for confirmation
of diagnosis?
Bacteriological
Biological
Serological
Microscopical
Allergological

Pure cultures of coccid microorganisms were isolated from the urethra of the patient
with urethritis of sluggish course. The isolated microorganism ferments only glucose
to acid in Hiss series tubes. Name the species of the isolated microorganism.
Neisseria gonorrhoeae
Neisseria meningitidis
Staphylococcus aureus
Streptococcus pyogenes
Enterococcus faecalis

Gr “+”prolonged diplococci with pointed opposite ends were revealed in sputum of
patient with suspicion on pneumonia. What microorganisms were revealed in smear?
Streptococcus pneumoniae
Staphylococcus aureus
Klebsiella pneumoniae
Neisseria meningitidis
Neisseria gonorrhoeae

At microscopy of sputum from patient with pneumonia, a lot of Gr “+” lancet shaped
diplococci, which are surrounded by capsule, were revealed. Which microorganisms
were revealed in smear?
Streptococcus pneumoniae
Klebsiella pneumoniae
Chlamidia pneumoniae
Staphylococcus aureus
Escherichia coli

5-year-old patient complains of severe headache and vomiting. Objectively: rigidity
of the occipital muscles, continual vomiting, nausea, herpetic rash on face, fever.

, What pathological material is needed to use for bacteriological confirmation of the
preliminary diagnosis - cerebrospinal meningitis?
Research of vomiting masses
Isolating of urinoculture of Neisseria menigitidis from excrements
Isolating of Neisseria menigitidis from sputum
Puncture of cerebrospinal fluid
Isolating of Neisseria menigitidis from the mucus membrane of the urinogenital
system

A 32-year-old woman has a high fever, severe headache, enlarged liver and spleen,
and visible elements roseola rash on the skin of the abdomen during the week. The
doctor diagnosed “typhoid fever”. What pathological material should be sent for
examination to clarify the diagnosis?
Feces
Blood smear from a finger
Serum
Bile
Blood from the cubital vein,10 ml.

Gr“+” round microorganisms which have a lecithinase activity, coagulate rabbit’s
plasma and split a mannitol in anaerobic condition were revealed from purulent
exudates of patient with odontogenous phlegmona. What of following
microorganisms can cause a purulent complication?
Streptococcus pyogenes
Streptococcus viridans
Staphylococcus epidermidis
Streptococcus mutans
Staphylococcus aureus

The newborn has hyperemia, swelling in the mucous membrane of the mouth, slight
erosion with viscous mucous-purulent discharge. A large number of leukocytes
containing gram-negative diplococci are found in the smears of the secretions. The
same microorganisms are located outside the leukocytes. What diagnosis can be
assumed?
Congenital syphilis
Gonococcal stomatitis
Staphylococcal stomatitis
Toxoplasmosis
Blenorrhea

Gram-negative bean-shaped diplococcus inside and outside of leucocytes were
detected on bacteriological examination of the purulent exudates from the cervix of
the uterus. Name the causative agent of purulent inflammation of the cervix of the
uterus.
Calymmatobacterium granulomatis
Chlamidia trachomatis
Haemophilus vaginalis

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