MICROBIOLOGY AND PARASITOLOGY PRE-TEST

35問 • 1年前

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Laboratory professionals are at risk for disease transmission. The majority of cases of laboratory-related infections are associated with: a. Infectious aerosols b. Puncture wounds c. Contamination of abraded skin d. Person-to-person transmission

a. Infectious aerosols

Anyone who enters an airborne infection isolation rooms should wear a: A. Regular mask B. Surgical mask C. N95 mask D. Gas mask

C. N95 mask

Culture plate is placed on its own shelf inside the incubator, which provides for a homogeneous atmosphere and efficient thermal conductivity in the incubator to bring the culture plate up to optimal conditions faster a. Dry-heat oven b. Humidity incubator c. Smart incubator d. Orbital shaking incubator

c. Smart incubator

Recognized as a low-temperature incubator or refrigerated incubator a. Agitator b. Bioreactor c. BOD d. Dry-heat oven

c. BOD Biochemical Oxygen Demand

In thioglycollate broth, strictly aerobic organisms: a. Grow throughout the broth b. Grow in the bottom of the broth ¢. Grow toward the top of the broth d. Demonstrate flocculation

¢. Grow toward the top of the broth

Green or brown zone around the colonies: a. Alpha hemolysis b. Beta hemolysis c. Gamma hemolysis d. None of these

a. Alpha hemolysis

An isolate of Staphylococcus aureus was cultured from an ulcer obtained from the leg of a diabetic 79-year-old female patient. The organism showed resistance to methicillin. Additionally, this isolate should be tested for resistance or susceptibility to: A. Erythromycin B. Gentamicin C. Vancomycin D. Kanamycin

C. Vancomycin

An outbreak of Staphylococcus aureus in the nursery department prompted the Infection Control Committee to proceed with an environmental screening procedure. The best screening media to use for this purpose would be: A. CNA agar B. THIO broth C. Mannitol salt agar D. PEA

C. Mannitol salt agar

An outbreak of Staphylococcus aureus has occurred in a hospital nursery. In order to establish the epidemiological source of the outbreak, the most commonly used typing method is what? a. Pulsed-field gel electrophoresis b. Coagulase testing c. Serological typing d. Catalase testing

a. Pulsed-field gel electrophoresis

Which method is most useful for confirmation that a culture isolate is Group B streptococcus? a. Southern blotting b. Polymerase chain reaction c. Direct hybridization d. Probe capture assay

c. Direct hybridization

Which test is used for the determination of inducible clindamycin resistance in staphylococci and streptococci? a. E-test b. D-zone test c. Atest d. CAMP test

b. D-zone test

Greater than 100,000 CFU/mL of a gram-negative bacllli were isolated on MacConkey from a urine specimen. Biochemical results are as follows: = Glucose: acid, gas produced = Indole: negative = Urea: positive = HaS: positive The organism is most likely: a. Morganella morganii b. Proteus vulgaris ¢. Proteus mirabilis d. Providencia stuartii

¢. Proteus mirabilis

A 64-year-old male with lymphoma has a positive blood culture at 18 hours incubation. The organism is a nonlactose fermenting gram-negative bacillus on MacConkey agar. Further testing gives the following reactions: * Oxidase: negative Motility: posfiive TSI: alkaline/acid, no hydrogen sulfide Indole: positive VP: positive Citrate: positive Urea: positive Phenylalanine deaminase: positive Ornithine decarboxylase: negative the genus is: a. Morganella b. Proteus c. Providencia d. Serratia

c. Providencia

A stool culture from a 30-year-old man suffering from bloody mucoid diarrhea gave the following results on differential enteric media: MacConkey agar = clear colonies; XLD agar = clear colonies; Hektoen agar = green colonies; Salmonella-Shigella agar = small, clear Which tsstg are most appropriate for identification of this enteric pathogen? a. TSI, motility, indole, urease, Shigella typing with polyvalent sera b. TSI, motility, indole, lysine, Salmonella typing with polyvalent sera c. TSI, indole, MR, VP, citrate d. TSI, indole, MR, and urease

a. TSI, motility, indole, urease, Shigella typing with polyvalent sera

community hospital microbiology laboratory is processing significant numbers of stool cultures bicause of an outbreak of diarrhea following heavy rains and flooding in the country. A media that should be incorporated in the plating protocol is: a. Colistin nalidixic acid for Listeria b. Mannitol salt agar for Enterococcus species c. MacConkey agar with sorbitol for Campylobacter d. Thiosulfate citrate bile salts sucrose for Vibrio species

d. Thiosulfate citrate bile salts sucrose for Vibrio species

Feather-edged colonies usually surrounded by zone of green discoloration; produces a highly characteristic, fruity odor resembling apples or strawberries: a. Achromobacter denitrificans b. Pseudomonas pseudoalcaligenes c. Pseudomonas alcaligenes d. Alcaligenes faecalis

d. Alcaligenes faecalis

All of the following are gram-positive spore-forming bacilli, EXCEPT: a. B. anthracis b. B. cereus c. B. fragilis d. B. subtilis

c. B. fragilis

Itis a serious pathogen of the eye, causing progressive endophthalmitis: a. Bacillus anthracis b. Bacillus cereus c. Bacillus subtilis d. Bacillus thurigiensis

b. Bacillus cereus

All of the following terms may be used to describe fungal colonial TOPOGRAPHY, except: a. Glabrose b. Rugose c. Umbonate d. Verrucose

a. Glabrose

Energy source in Sabouraud Dextrose Agar (SDA): a. Dextrose (glucose) b. Peptone c. Chloramphenicol d. Cycloheximide

a. Dextrose (glucose)

It is added to SDA to inhibit saprophytic fungi: a. Dextrose b. Chloramphenicol c. Cycloheximide d. Nystatin

c. Cycloheximide

ENTERIC CYTOPATHIC HUMAN ORPHAN because the disease associated with these agents was not initially known. Since 1967, newly isolated enteroviruses have been distinguished numerically. a. Coxsackievirus b. Echovirus c. Poliovirus d. Hepatitis A virus

b. Echovirus

Hand-foot-and-mouth disease is a vesicular exanthema usually caused by: a. Coxsackievirus b. Echovirus c. Poliovirus d. Hepatitis A virus

a. Coxsackievirus

Which of the following is the specimen of choice for detecting rotavirus? a. Throat swab b. Urine sample c. Bronchoalveolar wash d. Feces sample

d. Feces sample

May contain both trophozoites and cysts: a. Liquid stool b. Diarrheic stool c. Soft stool d. Formed stool

a. Liquid stool

VISCERAL LARVAL MIGRANS is associated with which of the following organisms? a. A. duodenale b. D. medinensis c. T. canis d. T. spiralis

c. T. canis

Ova recovered from the stool are routinely used to diagnose infections caused by all of the following EXCEPT? a. Necator americanus b. Ascaris lumbricoides c. Trichuris trichiura d. Strongyloides stercoralis

d. Strongyloides stercoralis

The eggs of Trichostrongylus are very similar to those of: a. Ascaris b. Enterobius c. Trichuris d. Hookworms

d. Hookworms

The worms are incapable of maturation within the human host and migrate aimlessly, causing tissue damage and inflammation: a. Echinococcus granulosus b. Taenia solium c. Gnathostoma spinigerum d. Trichinella spiralis

c. Gnathostoma spinigerum

The usual habitat of Trichinella spiralis adults in man is: a. Muscle b. Intestine c. Liver d. Blood

b. Intestine

Fluke(s) associated with CHOLANGIOCARCINOMA (cancerous growth in bile duct epithelium): a. F. buski b. P. westermani c. C. sinensis, O. viverrine d. S. japonicum

C. sinensis, O. viverrine

An operculated CESTODE egg that can be recovered from human feces is: a. Clonorchis sinensis b. Diphyllobothrium latum c. Paragonimus westermani d. Dipylidium caninum

b. Diphyllobothrium latum

In infections w/ Taenia solium, humans can serve as the: a. definitive host b. intermediate host c. either the definitive or the intermediate host d. none of the above

c. either the definitive or the intermediate host

definitive host of taenia saginata a. Cattle b. Pig c.Dog d. Man

d. Man

a. Definitive host b. Intermediate host c. Either the definitive or the intermediate host d. No 70. Rapid Diagnostic Tests (RDTs) for malaria detect histidine rich protein 2 (HRP-2) which is only produced b;:e a. P.vivax b. P. malariae c. P. ovale d. P. falciparum

d. P. falciparum

other names parasitology

Yves Laure Pimentel · 70問 · 2年前

other names parasitology