KAPNIEL MICRO-PARA

95問 • 2年前

問題一覧

Why is human blood not used in BAP? a) Safety risk for the laboratory personnel b) Easily hemolyzed c) Difficult to obtain d) Erroneous result

a) Safety risk for the laboratory personnel

What is the color change of the methylene blue infused strip when an anaerobic environment has been achieved in an anaerobic jar? A. Blue B. Colorless C. Green D. White

B. Colorless

Growth in CAP and BAP a) Gram negative bacteria b) Gram positive bacteria c) Spirochetes d) Anaerobic bacteria

a) Gram negative bacteria

The favorable energy source for many enteric pathogens is A. mannitol B. sodium citrate C. Lysine D. V factor

A. mannitol

Best way to prevent the spread of epidemic typhus: a) Vaccination b) Bathing c) Treatment d) Avoid contact with the vector

d) Avoid contact with the vector

Protozoan trophozoites may be destroyed when processing stool specimen using ___technique. A. culture B. concentration C. viral isolation D. direct microscopy

B. concentration

As per the Philippine Standards for drinking water, what indicator organism is used to assess the efficacy of water treatment process? a) K. pneumoniae b) E. coli c) N.marinum d) N. aquatica

b) E. coli

Which culture medium does NOT inhibit Gram positive organisms while allowing the growth of Gram-negative rods? A. Salmonella-Shigella Agar B. Tetrathionate Broth C. Blood Agar D. Selenite broth

C. Blood Agar

Purpose of iodine in gram staining: a) Fixes the dye b) secondary stain c) reinforcing stain d) differentiation

a) Fixes the dye

What selective and differential medium is used to isolate Vibrio species? A. Thiosulfate citrate bile salts agar B. Campy blood agar C. Cefsulodin-IrgasanNovobiocin agar D. Thioglycollate broth

A. Thiosulfate citrate bile salts agar

Mode of transmission of Diphyllobothrium latum: A.|Ingestion of aquatic vegetables b.Skin penetration c.lIngestion of freshwater crabs d.Ingestion of fish

d.Ingestion of fish

Which special media is used for growing organisms that need low oxygen content, reduced oxidation -reduction potential and extra nutrients? A. Alkaline Peptone Water B. Lowenstein-Jensen medium C. Thiogycollate broth D. Pseudosel agar

C. Thiogycollate broth

Purpose of PVA a) Concentration techniques b) Fixative c) Clearing agent d) Stain

b) Fixative

Which of the following is the correct result for E. coli using the Methyl Red Voges-Proskauer test? A. MR+ /VP- B. MR-/ VP- C. MR +/ VP+ D. MR-/ VP +

A. MR+ /VP-

MSA is selective because of a) Phenol red b) Mannitol c) Salt d) Antibiotics

c) Salt

Curved Gram negative bacilli seen in a 35 years old patient with gastric ulcers. What can be used to confirm a possible Gl tract infection? A. H2S test B. culture the organism in agar C. Urease test D. PYR test

B. culture the organism in agar

Can cause malignancy/ cancer a) Clonorchis sinensis b) Fasciola hepatica

a) Clonorchis sinensis

Sealed centrifuge buckets with liquid culture media are appropriately unloaded in a ____ A. fume hood B. dry laboratory bench C. disinfected table top D. biological safety cabinet

D. biological safety cabinet

Gold standard for detection of plasmodium a) Thick and thin blood film b) Immunoassays c) Thick portion d) Culture

a) Thick and thin blood film

The drug of choice for treatment of Paragonimus infections is A. Praziquantel B. Thiabendazole C. Albendazole D. lvermectin

A. Praziquantel

Which is not detected using a wet mount prep a) E. histolytica trophozoite b) S. stercoralis larva c) T. trichiura ova d) Adult ascaris

d) Adult ascaris

Why is a second dengue infection worse than the first? A. Infection with other serotypes B. Infection with related viruses C. Inadequate treatment D. Inadequate immune response

A. Infection with other serotypes

What can a medical technologist do for the patient in bacteriology section a) Update SOP b) Increase TAT c) Quality assurance

b) Increase TAT

When undercooked meat is ingested, the larvae of this parasite is resistant to the gastric pH so that they eventually pass to the intestines where they invade the mucosa. What organism is described? A. T. cati B. T. canis C.T. spiralis D. D. medinensis

C.T. spiralis

Identify the parasite: a) P. falciparum b) P. vivax c) P.ovale d) P. malariae

a) P. falciparum

The specimen to be collected for Epstein Barr virus PCR amplification is . A. synovial fluid B. serum C. whole blood in 5 mins EDTA D. sputum

C. whole blood in 5 mins EDTA

interpret a) Motile b) Nonmotile

b) Nonmotile

A flexible calcium alginate nasopharyngeal swab is the collection device of choice for recovery of ___from the nasopharynx A. Corynebacterium diptheriae B. Streptococcus pneumoniae C. Staphylococcus aureus D. Bacteroides fragilis

A. Corynebacterium diptheriae

a) Motile b) Nonmotile

Motile

What is chocolate agar made of? A. Lysed red blood cells B. Clotted blood C. Brown-colored nutrient agar D. Chocolate added to plain agar

A. Lysed red blood cells

What type of hemolysis? a) Alpha hemolysis b) Beta hemolysis c) Partial hemolysis d) Gamma hemolysis

b) Beta hemolysis

Stool specimens for the diagnosis of typhoid fever are POSITIVE ___ of illness A. after the first week B. during second week C. after first day of illness D. during first week

A. after the first week B. during second week

What type of hemolysis? a) Alpha hemolysis b) Beta hemolysis c) Partial hemolysis d) Gamma hemolysis

a) Alpha hemolysis

Transmission of food-borne trematodes may be influenced by A. sex B. geography C. climate change D. age

B. geography

What type of hemolysis? a) Alpha hemolysis b) Beta hemolysis c) Partial hemolysis d) Gamma hemolysis

d) Gamma hemolysis

Which of the following parasites cause a foodborne parasitic zoonosis causing an acute syndrome with cough, abdominal pain, discomfort and low grade fever that may occur 2-15 days after infection. Long term infection may mimic tuberculosis. Consumption of shellfish specialty dishes are implicated in this condition A. Ascaris lumbricoides B. Schistosoma japonicum C. Entamoeba histolytica D. Paragonimus westermani

D. Paragonimus westermani

Obligate anaerobes, facultative anaerobes, and microaerophiles are terms referring to bacteria that require: a) Increased nitrogen b) Decreased CO2 c) Increased O2 d) Decreased 02

d) Decreased 02

Which of the following is the ultimate goal of the National External Quality Assurance Scheme (NEQAS) for Parasitology? A. An unsatisfactory result is a basis for discontinuing the testing B. Validate the entire testing process c. Validate performance characteristics of reagents D. Verify accuracy and reliability of testing

B. Validate the entire testing process

Which of the following most affects the oxidation—reduction potential (Eh, or redox potential) of media for anaerobic bacteria? a) Oxygen b) Nitrogen c) pH d) Glucose

c) pH

When performing the disk diffusion method of antimicrobial susceptibility testing, Whatis the MOST appropriate remedial action when the zone diameters are too large or too small with all the antimicrobials? A. Standardize illumination B. Take fresh culture from stock C. Check the inoculum size inoculum

A. Standardize illumination

Which of the following is the medium of choice for the selective recovery of gram negative anaerobes? a) Kanamycin-vancomycin-anaerobe (KVA) agar b) Phenylethyl alcohol (PEA) agar c) Cycloserine cefoxitin fructose agar (CCFA) d) THIO broth

a) Kanamycin-vancomycin-anaerobe (KVA) agar

Determining an organism's ability to liquefy ___, aids in the classification of the Enterobacteriaceae. A. peptone B. mannitol c. nutrient gelatin D. beef extract

c. nutrient gelatin

Which of the following organisms will display lipase activity on egg yolk agar? a) Clostridium botulinum b) Clostridium sporogenes c) Clostridium novyi d) Allof these options

d) Allof these options

A solution used for routine examination of stool samples is A. phosphate buffered saline B. normal saline C. half normal saline D. plain water

B. normal saline

Which spore type and location is found on Clostridium tetani? a) Round, terminal spores b) Round, subterminal spores c) Ovoid, subterminal spores d) Ovoid, terminal spores

a) Round, terminal spores

What is the purpose of flaming an inoculating loop before and after use? A. To prevent accumulation of dust particles B. To sterilize C. To prevent crosscontamination D. To test integrity of the loop

B. To sterilize

The best specimen for recovery of the mycobacteria from a sputum sample is the: a) First morning specimen b) 10-hour evening specimen c) 12-hour pooled specimen d) 24-hour pooled specimen

a) First morning specimen

What type of infection mimics acute viral enteritis, bacillary bacterial poisoning and traveler 's diarrhea where the dysentery, diarrehiec stools lack blood, mucus, and cellular exudate? A. Cryptosporidiosis B. Giardiasis C. Balantidiosis D. Sarcocysticosis

B. Giardiasis

What concentration of sodium hydroxide (NaOH) is used to prepare a working decontamination solution for the processing of not normally sterile specimens for mycobacteria? a) 1% NaOH b) 4% NaOH c) 8% NaOH d) 12% NaOH

b) 4% NaOH

What additional tests are included when IMvic tests are done? A. Sugar & Simmon's citrate B. Motility & H2S C. Oxidase & Urease D. Catalase & coagulase

B. Motility & H2S

All of the following mycobacteria are associated with skin infections except: a) Mycobacterium marinum b) Mycobacterium haemophilum c) Mycobacterium ulcerans d) Mycobacterium kansasii

d) Mycobacterium kansasii

What is the purpose of egg yolk a) Differential b) Selective c) Enrichment

a) Differential

A 2-year-old patient was sent to the ER. White spots on his tongue was observed. What’s most likely the causative agent? a) S. pyogenes b) Candida albicans c) S. pneumoniae d) S. aureus

b) Candida albicans

The E.vermicularis worm lays eggs on the perianal and and the egg hatches and migrates back to the intestine a) Autoinfection b) Retroinfection

b) Retroinfection

Color of NLF on MacConkey agar a) Red b) colorless c) Green d) Blue

b) colorless

The following can be contained at BSC 1 Except a. B. subtilis b. S. aureus c. S. epidermidis d. S. marcescens

b. S. aureus

Identify the following organism as it appears in this peripheral blood smear. a) Trypanosoma spp. b) Leishmania sp. c) Wuchereria bancrofti d) Loaloa

a) Trypanosoma spp.

Peritrichous flagella A. Vibrio B. Enterobacteriaceae

A. Vibrio

Pseudomembranous colitis caused by Clostridium difficile is best confirmed by which of the following laboratory findings? a) Presence of the Toxin in stool b) Isolation of C. difficile from stool c) Gas production in thioglycolate media d) Gram stain of stool showing many gram-positive bacilli

a) Presence of the Toxin in stool

How can you differentiate Strongyloides from hookworms?

Giant genital primordium

Which of the following sets of tests provide the best differentiation of Erysipelothrix from Listeria monocytogenes? a) Gram-stained smear, oxidase, and optochin b) Gram-stained smear, catalase, and motility c) CAMP test, hydrogen sulfied production, esculin hydrolysis d) Reverse CAMP, gramstained smear, b-hemolysis

c) CAMP test, hydrogen sulfied production, esculin hydrolysis

G. lamblia can be acquired by a) Eating street food b) Eating street food and sex c) campers drinking from the lake

b) Eating street food and sex

how can you differentiate pathologic and non pathologic E. histolytica a. Serology b. By their morphology c. Culture

a. Serology

The majority of human infections with Campylobacter spp. are caused by which of the following? a) Direct contact with carriers of the bacterium b) Contamination of food, milk or water with animal feces c) Multiplication of the organism in food products d) Direct contact with persons infected with the bacterium

b) Contamination of food, milk or water with animal feces

Trichrome stains is for a. protozoan, cyst and trophozoite b. Coccidian c. Operculated eggs

a. protozoan, cyst and trophozoite

In the test for urease production, the presence of the enzyme hydrolyzes urea to which of the following? a) Ammonia and CO2 b) Putrescine c) Amines and CO2 d) Amines and water

a) Ammonia and CO2

Where can you find both cyst andtrophozoite a) watery stool b) Formed stool c) SemiFormed stool

c) SemiFormed stool

Which of the ff. groups of specimens would be acceptable for anaerobic culture? a) Vaginal, eye b) Ear, leg tissue c) Pleural fluid, brain abscess d) Urine, sputum

c) Pleural fluid, brain abscess

Method of choice in collecting presumptive E. vermicularis from a 7-year-old child

- Scotch tape method

When performing a Kovac indole test, the substrate must contain: a) Indole b) Tryptophan c) Ornithine d) Paradimethylaminobenzal dehyde

b) Tryptophan

What is the specimen of choice for diagnosis of latent syphilis a) Serum b) CSF c) Stool d) Cyst fluid

a) Serum

The ONPG test allows organisms to be classified as a lactose fermenter by testing for which of the ff.? a) Permease b) Beta- galactosidase c) Beta-lactamase d) Phosphatase

b) Beta- galactosidase

Which of the following has the lung migration on its life cycle? a. Toxocara b. Toxoplasma c. Strongyloides

c. Strongyloides

A medium that aids in the presumptive identification of organisms based on their appearance on the medium is called: a) Enriched b) Selective c) Differential d) Specialized

c) Differential

The life cycle of Schistosoma starts at a) Cercaria b) Miracidia c) Egg d) Larva

c) Egg

An antibiotic that inhibit cell wall synthesis is: a) Chloramphenicol b) Penicillin c) SXT d) Colistin

b) Penicillin

Cysticercosis a) Ingestion of undercooked pork b) Drinking of ova/ egg contaminated water

b) Drinking of ova/ egg contaminated water

Diagnosis of the typhoid fever can be confirmed best by culture of: a) Stool b) Urine c) Blood d) Bone marrow

d) Bone marrow

Hemoptysis

P.westermanni

Which of the following types of Candida albicans infection is commonly acquired from an exogenous source? a) Diaper rash b) Neonatal trush c) Perianal infection d) Urinary tract infection

b) Neonatal trush

Addition of saline to stool a) For bacterial motility b) For parasite motility

b) For parasite motility

Which one of the following tests would be appropriate in the diagnosis of a mycobacterial infection? a) Elek test b) CAMP test c) Nagler test d) PPD test

d) PPD test

What should be done if stool sample cannot be a process immediately a) Refrigerate b) Frozen c) Room temp

a) Refrigerate

Which of the following is the most common indicator of bacterial vaginosis? Eikenella Capnocytophaga Gardnerella Listeria

Gardnerella

produces the Bacteroides fragilis toxin, which has been associated with acute diarrheal disease

Enterotoxigenic Bacteroides fragilis (ETBF)

Enterotoxigenic Bacteroides fragilis (ETBF) produces the Bacteroides fragilis toxin, which has been associated with

acute diarrheal disease

Swimmer's ear, a form of external otitis is commonly caused by a) Acinetobacter baurnannii b) Bordetella bronchiseptica c) Haemophilus influenzae d) Pseudomonas auruginosa

d) Pseudomonas auruginosa

Not caused by an anaerobic bacteria a) Syphilis b) Gas gangrene c) Botulinum d) Tetanus

a) Syphilis

A number of vacationers who have traveled outside the U.S. have had their vacations interrupted by a case of "traveler's diarrhea, which is commonly associated with which etiologic agent? a) Aeromonas hydrophila b) Escherichia coli c) Proteus mirabilis d) Vibrio parahemolyti

b) Escherichia coli

On Gram stain, a morphology that resembles "seagull wings" is most characteristic of? a) Campylobacter jejuni b) Neisseria gonorrhoea c) Plesiomonas shigelloides d) Yersinia pseudotuberculosis

a) Campylobacter jejuni

Abiotrophia, formerly known as nutritionally variant streptococci, 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

Exfoliatin produced by Staphylococcus aureus is responsible for causing a) Enterocolitis b) Toxic shock syndrome c) Scalded skin syndrome d) Staphylococcal pneumonia

c) Scalded skin syndrome

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

Rose spots

Typhoid fever

Horder sports

C. psittaci

other names parasitology

Yves Laure Pimentel · 70問 · 2年前

other names parasitology