MICROBIOLOGY AND PARASITOLOGY

63問 • 1年前

問題一覧

Babes-Ernst granules are the metachromatic granules produced by: a. M. tuberculosis b. Y. pestis c. C. diphteriae d. E. aerogenes

c. C. diphteriae

What specimen is used in diagnosis of M. pneumoniae infection? a. Sputum b. Nasopharyngeal swab c. Bronchoalveolar lavage d. Genital swab

a. Sputum

Proteus spp. has a characteristic odor of? a. Apples and strawberries b. Grape-like odor c. Burnt chocolate odor d. Bleach-like odor

c. Burnt chocolate odor

What is the most sensitive test in determining Chlamydia in urine? a. NAAT b. Cell culture c. EIA d. Microscopy

a. NAAT

Traditional specimen for detecting Chlamydia in males: a. Rectal swab b. Semen c. Urine d. Urethral swab

d. Urethral swab

A catalase-positive, gram-positive bacillus, that is not acid-fast, does not branch, and does not form spores could possibly belong to which group of bacteria? a. Corynebacterium b. Bacillus c. Nocardia d. Mycobacterium

a. Corynebacterium

In addition to the food poisoning associated with ________, the type-specific species is a serious pathogen of the eye, causing progressive endophthalmitis. a. B. anthracis b. S. aureus c. C. trachomatis d. B. cereus

d. B. cereus

Pseudomembranous colitis caused by Clostridium difficile is best confirmed by which of the following laboratory findings? a. Gram stain of stool showing characteristic morphology or forms. b. Gas production in lactose broth c. Culture d. Detection of toxin in stool

d. Detection of toxin in stool

These microorganisms are spiral-shaped organisms, except: a. V. cholerae b. H. pylori c. T. pallidum d. C. tetani

d. C. tetani

A specimen collected from an intravascular catheter was seen as a gram-positive cocci. Which of the following is the most probable cause? a. K. pneumoniae b. P. aeruginosa c. E. coli d. S. aureus

d. S. aureus

Actinomyces: a. Gram negative cocci b. Gram negative bacilli, facultative anaerobe c. Gram positive bacilli, facultative anaerobe d. Gram positive cocc

c. Gram positive bacilli, facultative anaerobe

Which of the following NTM is classified as photochromogen? a. M. fortuitum b. M. gordonae c. M. xenopi d. M. kansasii

d. M. kansasii

All of the following are included in the MTB complex, except: a. M. caprae b. M. tuberculosis c. M. ulcerans d. M. microti

c. M. ulcerans

Spirochetes in Warthin-Starry stain? a. Colorless b. Black c. Yellow d. White

b. Black

What type of microorganism is isolated if there is pink growth in MacConkey Agar? a. Sorbitol fermenter b. Lactose fermenter c. Non-lactose fermenter d. Xylose fermenter

b. Lactose fermenter

The biochemical test most commonly used to differentiate Enterobacteriaceae: a. Oxidase b. IMViC c. Catalase d. Motility

b. IMViC

What is the pigment of lactose fermenting colonies in MacConkey agar? a. Burgundy b. Orange c. Pink d. Colorless

c. Pink

Which of the following is a pre-analytical part of microbiology testing? a. Patient identification b. Slide smears c. Proper storage of reagents and stains d. Standardization of parasite naming

a. Patient identification

Employ some factor/s that allow colonies of one bacterial species or type to exhibit certain metabolic or culture characteristics that can be used to distinguish them from other bacteria growing on the same agar plate: a. Indicator media b. Selective media c. Nutritive media d. Enrichment media

a. Indicator media

Which of the following is the primary stain of Gram stain (stains the cell wall)? a. Crystal violet b. Iodine c. Alcohol d. Safranin

a. Crystal violet

Method that uses heat to facilitate better staining of bacterial cell walls. a. Gram stain b. Kinyoun c. Ziehl Neelsen d. Giemsa stain

c. Ziehl Neelsen

Which of the following is the most accepted means of monitoring sterilization? a. Mechanical b. Biological c. Chemical d. Physical

b. Biological

What is the most significant factor in killing of bacteria in autoclave? a. Time b. High temperature b. High pressure d. Humidity

b. High temperature

What is the solidifying agent of Cary-Blair medium? a. Agarose b. Agar c. Silica gel d. Polyacrylamide gel

b. Agar

The production of H2S requires: a. Acidic environment b. Alkaline environment c. Neutral environment d. None of the above

a. Acidic environment

Which media is able to produce sulfide? a. Chocolate agar b. Trypticase soy broth c. Iron agar d. Blood agar

c. Iron agar

Recognized as a low-temperature incubator or refrigerated incubator: a. Smart incubator b. BOD incubator c. Bioreactors d. High tech incubators

b. BOD incubator

A specialized laboratory equipment used in measuring the amount of oxygen consumed by microorganisms in water or wastewater samples: a. Carbon dioxide incubators b. BOD incubators c. Benchtop incubators d. Anaerobic incubators

b. BOD incubators

Which of the following specimen MUST NOT be refrigerated? a. Urine b. Blood c. Stool d. Viral specimen

b. Blood

What is the bacterial count in CFU/mL of a 0.5 MacFarland standard? a. 1.5 x 108 CFU/mL b. 1.8 x 108 CFU/mL c. 0.5 x 108 CFU/mL d. 0.8 x 108 CFU/mL

a. 1.5 x 108 CFU/mL

All of the following are mechanisms of antibiotic resistance, EXCEPT: a. Decreased permeability to antimicrobials b. Enzymatic degradation c. Alteration of antimicrobial target d. Antigen-antibody complexes

d. Antigen-antibody complexes

The presence of residual chlorine in water only means: a. There is sufficient volume of chlorine added to water b. Water is not safe for drinking c. There is a need for additional treatment to remove excess chlorine d. Coliform poses significant contamination in water

a. There is sufficient volume of chlorine added to water

What is the antibiotic of choice for treating patients with MRSA? a. Penicillin b. Ampicillin c. Aminoglycosides d. Vancomycin

d. Vancomycin

What is the gold standard method in detecting MRSA? a. Immunoassay b. Culture c. Biochemical d. Molecular

d. Molecular

Which of the following refers to bacterial arrangement? a. Sphere b. Curve c. Spiral d. Pair

d. Pair

According to CDC, all of the following are reservoirs, except: a. Humans b. Animals c. Environment d. Vectors

d. Vectors

All of the following are used in a BSL-2 laboratory, except: a. Autoclave b. Laboratory gown c. Biosafety cabinet d. Positive pressure suit

d. Positive pressure suit

Which of the following refers to a positive indole test result? a. Lemon-yellow color b. Salmon-pink color c. Cherry-red ring d. Blue ring

c. Cherry-red ring

Which of the following is a nitrogen source in culture medias? a. Meat extract b. Yeast extract c. Peptone d. Agar

c. Peptone

n PCR, the viral ______ is replicated and amplified. a. Cytoplasm b. RNA c. Envelope d. Capsid

b. RNA

False positive PCR maybe caused by all of the following, except: a. Too low levels of amplicons b. Dirty equipment c. Contaminated sample d. Contaminated reagent

a. Too low levels of amplicons

What is considered as the protein coat of a virus? a. Envelope b. Nucleocapsid c. Capsid d. Spike

c. Capsid

Temperature for viral transport: a. 4 degrees Celsius b. -4 degrees Celsius c. -70 degrees Celsius d. 70 degrees Celsius

c. -70 degrees Celsius

Viral shedding is greatest in which of the following stages of disease? a. Early b. Mid c. Late d. Any of the above

a. Early

Disease caused by fungi: a. Mycoides b. Mycosis c. Fungoides d. Fungosis

b. Mycosis

What is the mode of transmission of Aspergillus infection? a. Direct contact b. Inhalation c. Ingestion d. Parentera

b. Inhalation

Parasite that is causative agent of mystery disease and was first isolated in Ilocos region: a. Trichuris trichiura b. Echinostoma ilocanum c. Capillaria philippinensis d. Enterobius vermicularis

c. Capillaria philippinensis

Which stain is employed for detecting Cryptosporidium parvum? a. Gram stain b. Modified Acid Fast stain c. Modified Trichrome stain d. Trichrome stain

b. Modified Acid Fast stain

Which of the following pictures describes a nematode?

Identify the life stage shown below: a. Miracidium b. Cercariae c. Metacercariae d. Redia

a. Miracidium

What stage of malarial life cycle is ingested by the female anopheles mosquito during its blood meal? a. Merozoites b. Sporozoites c. Gametocytes d. Sporocysts

c. Gametocytes

Degree of malarial infection in thin film of blood is expressed in? a. Average number b. parasite/uL of blood c. Percentage d. Range/mL of blood

c. Percentage

To indicate the degree of parasitemia or parasite density in positive cases, the number of parasites in thick smear was graded using the plus system scale. Malaria grading of more than 10 parasites/thick field: a. + b. ++ c. +++ d. ++++

d. ++++

Eggs of ascaris are described as: a. Thick and warty b. With radial striations c. With polar filaments d. With bipolar plugs

a. Thick and warty

All of the following are characteristics of nematodes, EXCEPT? a. Size of tail b. Eggs c. Shape of tail d. Number of proglottids

d. Number of proglottids

The following choices are the correct parasite to infective stage, except: a. A. duodenale: Filariform larva b. A. lumbricoides: embryonated egg c. T. trichiura: embryonated ova d. S. stercoralis: Rhabditiform larva

d. S. stercoralis: Rhabditiform larva

It is acquired through ingestion/inhalation: a. E. vermicularis b. S. stercoralis c. T. saginata d. T. solium

a. E. vermicularis

What is the best time to collect specimen for E. vermicularis? a. Evening b. Night after showering c. Morning after waking up d. Noon

c. Morning after waking up

Which of the following parasite has nocturnal periodicity? a. W. bancrofti b. O. volvulus c. L. loa d. All of the above

a. W. bancrofti

Which schistosome egg has a pointed terminal spine? a. S. japonicum b. S. haematobium c. S. mekongi d. S. mansoni

b. S. haematobium

The Sabin Feldman dye test uses: a. Live parasite b. Neutralized parasite c. Killed parasite d. Inactivated parasite

a. Live parasite

Flotation techniques: (I) Zinc sulfate (II) Sheather’s sugar (III) Brine’s (IV) Formalin ether a. I, II, III, and IV b. I, II, and III c. I and II d. I, II, and IV

b. I, II, and III

n the identification of this organism it is actually important to take note the multiply-infected RBCs, some appliqué forms and some classic “head phone” form of several of the infected red blood cells, and the presence of CRESENT shaped gametocytes. a. P. falciparum b. P. vivax c. P. ovale d. P. malariae

a. P. falciparum

other names parasitology

Yves Laure Pimentel · 70問 · 2年前

other names parasitology