MICRO

68問 • 2年前

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A bacteria was inhibited by thionine and fuchsin. The most probable isolate is: - Yersinia - Bacteroides - Aeromonas - Brucella

Brucella

Nugen scoring system is used for the diagnosis of - Streptococcus pyogenes - Mycobacterium tuberculosis - Gardnerella vaginalis - Bordetella pertussis

Gardnerella vaginalis

The capsule of S. pneumoniae is made of - Acetic acid - Sialic acid - Hyaluronic acid - Pyruvic acid

Hyaluronic acid

The reagent used in hippuric hydrolysis test - Neuraminidase - Glycine - Benzoic acid - Ninhydrin

Ninhydrin

Malarial species that has a rosette or fruit pie arrrangement of merozoites - P.vivax - P.falciparum - P.ovale - P.malariae

P.malariae

Resembles the egg of S.haematobium but is Acid fast POSITIVE - S.mekongi - S.intercalatum - S.mansoni - S.japonicum

S.intercalatum

Vegetative stage of typical amoeba - Cyst stage - Larvae stage - Trophozoite stage - Oocyst stage

Trophozoite stage

Habitat for Trichomonas tenax cyst - Intestine - Oral cavity - Genitals - NOTA

Oral cavity

Region of growth for cestodes - Scolex - Strobila - Proglottid - Neck

Neck

Solution used to remove hydatid cyst - Formalin - Methanol - India ink - Acetone

Formalin

Capable for autofluorescence - Toxoplasma - Balantidium - Cyclospora - Cryptosporidium

Cyclospora

S.G. in zinc floatation technique - 1.15 - 1.18 - 1.20 - 1.40

1.18

Which microfilariae is unsheathed? - Loa loa - Brugia malayi - Wuchereria bancrofti - Onchocerca volvulus

Onchocerca volvulus

Spx of choice for Acanthamoeba - CSF - Stool - Sputum - Urine

CSF

What COLOR ARE GRAM-NEGATIVE BACTERIA after the decolorizing step in the Gram stain method? - a. Purple - b. Red - c. Purple-red - d. Colorless

Colorless

UROGENITAL SWABS TO BE CULTURED FOR GONOCOCCI should be plated onto culture media: - a. Immediately; at the bedside preferably - b. Within 2 hours of collection - c. Within 4 hours of collection - d. Within 24 hours of collection

Immediately; at the bedside preferably

What is the PURPOSE OF MAKING CUTS in the SHEEP BLOOD AGAR WHEN A THROAT CULTURE IS PLATED? - a. To count the colonies growing after incubation - b. To observe the appearance of any hemolysis present - c. To determine whether the organism is lactose positive or negative - d. To note the morphologic appearance of the colony growth

To observe the appearance of any hemolysis present

Which of the following ORGANISMS CAN BE RECOGNIZED by its spreading growth appearance on SHEEP BLOOD AGAR? - a. Escherichia coli - b. Proteus spp. - c. Staphylococcus aureus - d. Klebsiella spp.

Proteus spp.

WOUND INFECTIONS can be CLASSIFIED INTO THREE MAJOR AREAS INCLUDING: - a. Superficial, artificial, and wounds - b. Superficial, subcutaneous, and deep wounds - c. Superficial, folliculitis, and abscess - d. Superficial, burns, and ulcer

b. Superficial, subcutaneous, and deep wounds

: “Clue cells” are best seen in which of the following specimens? - a. Wet preparation of vaginal discharge - b. Gram stain of vaginal discharge - c. KOH–wet preparation of vaginal discharge - d. KOH–Gram stain of vaginal discharge

a. Wet preparation of vaginal discharge

When ANTIBIOTIC THERAPY IS NEEDED, specimens for culture and organism identification SHOULD BE COLLECTED: - a. At any time; administration of antibiotics does not affect the tests - b. While the antibiotics are being administered - c. Before the antibiotics have been administered - d. After the antibiotics have been administered

Before the antibiotics have been administered

If the ANTIBIOTIC DOES NOT INHIBIT THE GROWTH OF AN ORGANISM, the organisms is said to be: - a. Susceptible - b. Sensitive - c. Resistant - d. Intermediate

Resistant

The BEST METHOD FOR FINDING PINWORM ORGANISMS in CHILDREN IS: - a. Ova and parasite (O&P) examination - b. Rectal swab - c. Cellophane tape collection - d. Blood

Cellophane tape collection

Who is the father of microbiome? - Dr. Jeffrey Gordon - Anton van Leeuwenhoek - Harvey Cushing - Robert Koch

Dr. Jeffrey Gordon

Which of the ff microorganism/s perform photosynthesis by utilizing light? - Fungi - Viruses - Cyanobacteria - AOTA

Cyanobacteria

Helps in gathering and focusing light rays on the specimen to be viewed - Eyepiece - Objective - Condenser - Magnifying

Condenser

Which of the ff is a Spirochete? - Streptomyces - Spirillum volutans - C. diphtheriae - Treponema pallidum

Treponema pallidum

Refers to a microorganism that have clusters of flagella at both poles - Monotrichous - Amphitrichous - Peritrichous - Lophotrichous

Amphitrichous

The ________ of bacteria is associated with the _______ - respiratory chain; cell wall - circulatory chain; cytoplasmic membrane - respiratory chain; cytoplasmic membrane - NOTA

respiratory chain; cytoplasmic membrane

S. aureus is: - Thermophilic - Cryophilic - Mesophilic - Mesophilic and Cryophilic

Mesophilic

Which among the ff microorganisms are microaerophilic bacteria? - Spirochaeta - Treponema - Borrelia - Anaplasma

Borrelia

Lipopolysaccharide in cell walls is a characteristic of? - Fungi - Algae - Gram neg bacteria - Gram pos bacteria

Gram neg bacteria

Type strain is used for? - family - genus - species - kingdom

species

🚩What is the function of dextrose in the SDA: - A. Solidifying agent - B. Energy and Carbon source - C. Provides amini acids

Energy and Carbon source

: 🚩Which of the following is virulence factor of Aspergillus spp.? - A. Capsule - B. Aflatoxin - C. Extracellular proteinases

B. Aflatoxin

🚩Which of the following is the first step in the identification of unknown yeast isolate? - A. Germ tube fornation - B. Cornmeal agar - C. Carbohydrate utilization patterns

Germ tube fornation

🚩Fungal elements in the acridine orange staining procedure: - A. Stain Red - B. Fluoresce Green color - C. Stain Purple

B. Fluoresce Green color

💫The organism associated with a disease characterized by the presence of a pseudomembrane in the throat and the production of an exotoxin that is absorbed into the BLOOD STREAM WITH A LETHAL EFFECT is: - A. Arcanobacterium haemolyticum - B. Staphylococcus aureus - C. Streptococcus pyogenes - D. Corynebacterium diphtheriae

D. Corynebacterium diphtheriae

ENTEROTOXIN produced by Staphylococcus aureus is responsible for causing: - A. Carbuncles - B. Enterocolitis - C. Impetigo - D. Scalded skin syndrome

B. Enterocolitis

💫1. A test for the hydrolysis of esculin in the presence of bile is especially useful in identifying species of the genus: - A. Abiotrophia - B. Corynebacterium - C. Enterococcus - D. Staphylococcus

C. Enterococcus

💫4. Abiotrophia, formerly known as nutritionally variant streptococci (NVS), WILL NOT GROW on routine blood or chocolate agars because they are deficient in: - A. Hemin - B. Pyridoxal - C. Vitamin B12 - D. Thiophene-2-carboxylic hydrazide

B. Pyridoxal

💫5. Exfoliatin produced by Staphylococcus aureus is responsible for causing: - A. Enterocolitis - B. Toxic shock syndrome - C. Scalded skin syndrome - D. Staphylococcal pneumonia

Scalded skin syndrome

💫6. Streptococcus pyogenes can be presumptively identified using a(an): - A. PYR disk - B. ONPG disk - C. SPS disk - D. Optochin disk

A. PYR disk

: 💫7. A gram-positive coccus that is catalase positive, nonmotile, lysostaphin resistant, and modified oxidase positive is best identified as a member of the genus: ] - A. Micrococcus - B. Lactococcus - C. Pediococcus - D. Staphylococcus

A. Micrococcus

💫8. Nocardia asteroides infections in humans characteristically produce: - A. Carbuncles - B. Draining cutaneous sinuses - C. Septic shock - D. Serous effusions

B. Draining cutaneous sinuses

💫9. Erysipelothrix infections in humans characteristically produce: ] - A. Pathology at the point of entrance of the organism - B. Central nervous system pathology - C. Pathology in the lower respiratory tract - D. The formation of abscesses in visceral organs

A. Pathology at the point of entrance of the organism

💫In the CAMP test a single streak of a beta-hemolytic Streptococcus is placed perpendicular to a streak of beta-lysinproducing S. aureus After incubation, a zone of increased lysis in the shape of an ARROWHEAD is noted; this indicates identification of ] - A. S. agalactiae - B. S. bovis - C. S. equinus - D. S. pyogenes

A. S. agalactiae

Big Bear, RMT..., [8/30/2023 10:13 AM] [ Poll : 💫11. Staphylococcus saprophyticus, a recognized pathogen, is a cause of: ] - A. Furuncles - B. Impetigo - C. Otitis media - D. Urinary tract infections

D. Urinary tract infections

💫Gram stain of a blood culture on a pregnant woman who presented w/fever & flulike symptoms in her 9month The isolate on blood agar produced small translucent beta-hemolytic colonies Which of the ff. is the most likely etiologic agent in this case? - A. Listeria monocytogenes - B. Propionibacterium acnes - C. Streptococcus agalactiae - D. Streptococcus pyogenes

A. Listeria monocytogenes

💫13. The etiologic agent most commonly associated with septicemia and meningitis of newborns is: - A. Streptococcus agalactiae - B. Streptococcus bovis group - C. Streptococcus pneumoniae - D. Streptococcus pyogenes

A. Streptococcus agalactiae

💫14. Which of the following is the most commonly isolated species of Bacillus in opportunistic infections such as bacteremia, post-traumatic infections of the eye, and endocarditis? ] - A. B. circulans - B. B. cereus - C. B. licheniformis - D. B. subtilis

B. B. cereus

: 💫15. Loeffler's serum medium is recommended for the cultivation of: - A. Abiotrophia sp. - B. Corynebacterium diphtheriae - C. Leuconostoc sp. - D. Streptococcus agalactiae

B. Corynebacterium diphtheriae

On Tinsdale agar, colonies of Corynebacterium diphtheriae are characterized by the observance of: - A. Liquefaction of the agar surrounding the colonies on the medium - B. Opalescent colonies with a white precipitate in the surrounding agar - C. Black colonies on the culture medium surrounded by brown halos - D. Pitting of the agar medium surrounding the colonies

C. Black colonies on the culture medium surrounded by brown halos

: 💫17. Precipitates of diphtheria toxin and antitoxin formed in agar gels are an in vitro means for detecting toxigenic strains of Corynebacterium diphtheriae. The name of this test procedure is the: - A. D-test - B. Elektest - C. Hodge test - D. Naglertest

B. Elektest

💫18. The etiologic agent of the disease erysipelas is: - A. Staphyloccus aureus - B. Streptobacillus moniliformis - C. Streptococcus agalactiae - D. Streptococcus pyogenes

D. Streptococcus pyogenes

💫19. Staphylococcus aureus, when present, could most likely be recovered from a stool sample if the primary plating medium included ] - A. Bismuth sulfite - B. Phenylethyl alcohol - . Thiosulfate citrate bile salts sucrose - D. Xylose-lysine-desoxycholate

B. Phenylethyl alcohol

: 💫20. A common member of the normal flora of the upper respiratory tract is: - A. Corynebacterium jeikeium - B. Lactobacillus - C. Staphylococcus epidermidis - D. Viridans streptococcus

D. Viridans streptococcus

: 💫21. Streptococci obtain all their energy from the fermentation of sugars to: - A. Formic acid - B. Lactic acid - C. Succinic acid - D. Valeric acid

B. Lactic acid

💫22. Streptococci are unable to synthesize the enzyme: - A. Catalase - B. Kinase - C. Hyaluronidase - D. Lipase

A. Catalase

: 💫The beta-hemolysis produced by group A Streptococcus seen on the surface of a sheep blood agar plate is primarily the result of streptolysin; - A. H - B. M - C. O - D. S

D. S

💫When an infection due to Streptomyces is suspected, isolates can be separated from most other bacteria by: - A. Heat shocking the culture - B. Incubating the culture at 25°C - C. Incubating the culture at greater than 37°C - D. Drying the specimen before inoculating the culture media

B. Incubating the culture at 25°C

💫The production of H2S is one characteristic used to differentiate which of the aerobic gram-positive bacilli? - Corynebacterium - Erysipelothrix - Lactobacillus - Nocardia

Erysipelothrix

💫Growth in a 48-hour semisolid agar stab culture at room temperature reveals lateral filamentous growth away from the stab near the top of the medium. This observation is most characteristic of which organism? - Rhodococcus sp. - Corynebacterium urealyticum - Enterococcusfaecalis - Listeria monocytogenes

Listeria monocytogenes

💫A former species of Corynebacterium pathogenic for swine, horses, and cattle is also known to cause disease in compromised hosts. This organism when grown on culture media produces pale pink colonies that help to presumptively identify it as: - Arcanobacterium hemolyticum - Rhodococcus equi - Actinomyces naeslundii - Gardnerella vaginalis

Rhodococcus equi

The presence of Cimex spp. denotes that there is an: ] - Infection - Infestation - Immune aberration - Higher risk of having protozoan infection

Infestation

.. This nonfermentative gram-negative rod is capable of H2S production: - A. Achromobacter xylosoxidans - B. Shewanella algae - C. Erisylopethrix rusopathiae - D. Paracoccus yeei

B. Shewanella algae

: All of the following will not differentiate Lactobacillus from Leuconostoc, except? - Catalase - Gram stain - Durham tube - Growth in MRS broth

Durham tube

Hemolytic patterns are best observed by passing a bright light through the ____of the blood agar plate and looking through the ___ of the agar plate. ] - bottom, top - top, bottom - side, top - top, top

bottom, top

other names parasitology

Yves Laure Pimentel · 70問 · 2年前

other names parasitology