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  • #16
    1- Solidifying agent for media is,
    A) agar.
    B) wax.
    C) starch.
    D) non of above.

    2- Color of gram stain is.
    A)brown
    B) red.
    C) green.
    D) black.

    3- Those are use In gram stain except.
    A) crystal violet.
    B) malachite green.
    D) safranine.
    E) non of above

    4- Temperature for autoclave is.
    A) 121c for 30 min.
    B) 121C for 60min.
    C) 131C for 20 min.
    D) non of above.

    5- Microscope use in condition gram stain is.
    A) Bright field microscope.
    b-electronic microscope
    C) dark field microscope.
    D) non of the above.

    6- Thayer martin medium is the media of choice for isolation of .
    A) E.coli.
    B) neisseria.
    C) bacillus.
    D) vibrio.

    7- Bacteria that has no flagella classified as ?
    A) atrichon.
    B) monotrichons.
    C) keprotrichons.
    D) peritrichons.

    8- CLED agar use in urine culture because it?
    A) it is transport media.
    B) it is basic media.
    C) Help in colonies count and prevent swarming of proteus.
    D) all above.

    9-Agar solidified at?
    A) 100C.
    B) 45c.
    C) 60C.
    D) 75C

    10- Anticoagulant that use in blood culture is?
    A) fluoride.
    B) EDTA.
    C) citrate.
    D) Sodium polyanthol sulphat.

    11- Which test help in identifying staph from strepto it is.
    A) catalyase.
    B) coagulase.
    C) oxidase.
    D) all above

    12- Use to protect biohazard is?
    A) tube.
    B) Gloves.
    C) syringe.
    D) non of above.

    13- Ziel nelson stain use in?
    A) bacillus.
    B) mycobacterium.
    C) H.influnza.
    D) non of above.

    14- Bacteria that can grow in present or absent of O2 is called?
    A) facultative anaerobic.
    B) strict anaerobic.
    C) anaerobic.
    D) non of above.

    15- Optimum temperature for growth of bacteria is?
    A) 50C.
    B) 60C.
    C) 37C.
    D) non of above.

    16- Salmonella in the coming medium it gives?
    A) on maccokey pink colonies.
    B) XLD red black colonies.
    C) SS pink colonies black center.
    D) all are true

    17- Satellite phenomenon seen in ?
    A) influenza and staph. aureus.
    B) influenza and strepto.
    C) influenza and vibrio.
    D) non of the above.

    18- All are true about salmonella except.
    A) somatic.
    B) oxidase positive.
    C) H2S produce.
    D) produce acid and gas

    19- Quellung test is positive with the coming except.
    A) strepto pneumonia.
    B) H. influenza.
    C) klebsiella.
    D) corynebacteria diphtheria.

    20- In significance bacteria cfu/ml is.
    A) > 100.
    B) >1000.
    C) >10000.
    D) 100000.

    21- Agar use to solidify the medium in concentration of.
    A) 1- 2 %.
    B) 3%.
    C) 2 – 4%.
    D) non of above.

    22-Which of the following is lactose ferment.
    A) klebsiella.
    B) proteus.
    C) shigella.
    D) pseudomonas

    23- Culture media kept in the following after plating.
    A) hot oven.
    B) incubator.
    C) non of above.
    D) all above

    24- Media for detection of hemolysis is.
    A) blood agar.
    B) neutral agar.
    C) macconky.
    D) all above

    25- All are use in Zeilh Nelson stain except.
    A) Carbon Fuchcin.
    B) Acid alcohol.
    C) Methyl blue.
    D) Malachite green.

    26- Color of gram negative bacteria is.
    A) red.
    B) blue.
    C) violet.
    D) green.

    27- Most common bacteria that produces urease is.
    A) proteus.
    B) pseudomonas.
    C) E.coli.
    D) non of above.

    28- Albert's stain use with which of the organism.
    A) E.coli.
    B) H. influenza.
    C) C.tetani.
    D) Corynebacterium diphtheria.

    29- Proteus mirabilis and proteus vulgaris all are true except:
    A) produce H2S.
    B) Non lactose ferment.
    C) urease positive.
    D) indole positive.

    30- Gram stain smear see under:
    A) Dark field microscope.
    B) Bright field microscope.
    C) Fluorescence microscope.
    D) Electron microscope.

    31- Smear stain with fluorescence exam with:
    A) Bright field microscope.
    B) Fluorescence microscope.
    C) Dark field microscope.
    D) Electron microscope.

    32- An example for negative stain is:
    A) gram stain.
    B) Alberts stain.
    C) methyl blue.
    D) nigrocine stain.

    33- All of the following are non lactose ferment except:
    A) E.coli.
    B) shigella.
    C) proteus.
    D) salmonella.

    34- To differentiate between staph aureus and other staph spp:
    A) catalyase test.
    B) Oxidase test.
    C) Coagulase test
    D) Dnase test.

    35- One of the following is an example for enrichment media:
    A) Blood agar.
    B) CLED.
    C) Nutrient agar.
    D) Selenite broth.

    36- One of the following is an example for enrich media:
    A) Blood agar.
    B) N.A.
    C) Selenite broth.
    D) Macconky.

    37- One of the following is an example for enrichment media:
    A) Blood agar.
    B) N.A.
    C) Selenite broth.
    D) Macconky.

    38-All of the following affect gram stain except.
    A) smear from old media.
    B) prolong decolonization.
    C) staing smear stay for long time.
    D) All of above.

    39- The following are use in gram stain except.
    A) iodine.
    B) crystal violet.
    C) safranine.
    D) malachite green.

    40- All of the following belong to enterobacteracae except.
    A) E.coli.
    B) Alcaligenes.
    C) proteus.
    D) campylobacter.

    41-All are true about salmonella except.
    A) gram negative bacilli.
    B) non lactose ferments.
    C) produce H2S.
    D) man is reservoir and carrier host.
    E) oxidase positive.

    42- The primary stain of gram stain is.
    A) crystal violet.
    B) safranine.
    C) iodine.
    D) eosin

    43-Mycobacterium named acid fast because?
    A) stain easily.
    B) once stained not decolorize by acid.
    C) because of it is shape.
    D) non of above.

    44- Infections may be caused by microorganisms entering th body through the
    A- Skin & mouth
    B- Eyes
    C- Respiratory tract
    D- All of them

    45- Decontaminate culture s by autoclaving at
    A- 121 C for 20 min
    B- boiling water for 20 min
    C- 100 C for 30 min
    D- non of these

    46- Organisms can be picked up on the hands from the
    A- Benches and equipment
    B- Contaminated splashes
    C- Contaminated spills
    D- All of them

    47- Pipettes soaked after use for at least 1h in
    A- 2500 ppm chlorine
    B- 1000 ppm chlorine
    C- 1 % w/v virkon
    D- boiling water for 20 min

    48- Infected small airborne droplets into the atmosphere cause infection through
    A- Skin
    B- Mouth
    C- Respiratory tract
    D-Eyes


    49- if the sterile tubes are needed autoclave it at
    A- 121 C for 20 min
    B- boiling water for 20 min
    C- 100 C for 30 min
    D- non of these

    50- The organisms in the risk group 3 present a …………. to the community
    A- No risk
    B- Low risk
    C- Intermediate risk
    D- High risk

    51- Loops & forceps are sterilized by
    A- Flaming until red hot
    B- boiling water for 20 min
    C- soaked in 1 % w/v virkon
    D- non of these

    52- Preventing laboratory infections depends on laboratory staff understanding
    A- The routes by which infections are acquired
    B- Which organisms are the most hazardous
    C- Which techniques are the most hazardous
    D- All of them

    53- Causes of presence of pus in feaces
    A- amoebic dysentery
    B- intestinal schistosomiasis
    C- trichuris trichura
    D- all of them

    53- Most bacteria can be differentiated by their Gram stain due to difference in
    A- Cell wall
    B- Cell membrane
    C- Capsule
    D- All of them

    54- Culture media contain ingredients such as
    A- peptone
    B- carbohydrate
    C- Meat extract
    D-All of them

    55- Acquiring infection by mouth pipetting can occur when
    A- Aerosols are produced from fluid as it is being sucked up or expelled
    B- A pipette with a contaminated end is put in the mouth

    C- Pipette with a chipped end causes cuts to the fingers or lips
    D- All of them

    56- Enriched media are required for the culture of
    A- hemophilus influenza
    B- Neisseria
    C- streptococcus
    D- All of them

    57- Macroscopic appearance of faecal specimens
    A- Odour
    B- Specific gravity
    C- Whether the specimen contain worms
    D-All of them


    58- Differential media contain indicators or dyes such as
    A- Bromothymol blue
    B- Methyl red
    C- crystal violet
    D- all of them

    59- Pale colored faecal specimen is found in the following cases except
    A- Giardiasis
    B- Infections associated with intestinal malabsorption
    C- Obstructive jaundice
    D- E. Histolytica

    60- In gram stain the first stain is
    A- Crystal violet
    B- Iodine
    C- Safranine
    D- Alcohol

    61- The first urine passed by the patient at the beginning of the day should
    be sent for examination because the specimen is the
    A- Most suitable
    B- Most concentration
    C- Lowest concentration
    D- Available one

    62 – Giemsa stain technique used in stain
    A- Bacteria
    B- Virus
    C- Parasites
    D- All of them

    63- In case of urine specimen if a delay in delivery of more than 1 hour anticipated ………………….. should be added to the urine
    A- Sulfuric acid
    B- Boric acid
    C- Acetic acid
    D- Nitric acid

    64- bacteria contain only one flagella called ……..
    A- mono-trichous
    B- peri- trichous
    C- loph- trichous
    D- ( a , b )

    65- Gastric washings should be …………… as soon as possible After collection
    A- Acidified
    B- Alkalinized
    C- Neutralized
    D- None of these

    66- bacteriology is the science which study the
    A- bacteria & their characters
    B- virus& their characters
    C- fungi & their characters
    D- no result

    67- If the specimen is for the isolation of M. tuberculosis , ensure that it is Delivered to the laboratory
    A- Within 2 hours
    B- Kept at 4 ‘C until delivery is possible
    C- A & B is true
    D- A and B is false.

    68- in the ………..bacteria are divided at high concentration
    A- Lag phase
    B- Log phase
    C- stationary phase
    D- Decline phase

    69- For 8 hours before swabbing , the patient must not be treated with
    A- Antibiotics
    B- Antiseptic mouth washes
    C- A or B
    D- None of these

    70- in the ………..the rate of cell death increase & bacterial growth stopped
    A- Lag phase
    B- Log phase
    C- stationary phase
    D- Decline phase.

    71- These are media to which indicators or dyes are added to differentiate microorganisms as XLD agar
    A- Basic
    B- Enriched
    C- Selective
    D- Differential

    72- Bacteria which can not retain with Gram stain's called
    A- Gram negative bacteria
    B- Gram positive bacteria
    C- Acid fast bacteria
    D- no result.

    73- Decontaminate sputum by autoclaving at
    A- 121 C for 15 min
    B- boiling water for 20 min
    C- 100 C for 30 min
    D- non of these

    74- Organisms can penetrate the skin through
    A- Cuts & scratches
    B- Airborne droplets
    C- Contaminated fingers
    D- Cigarettes

    75- Basic media are simple media such as
    A- Nutrient agar
    B- Blood agar
    C- XLD agar
    D- TCBS agar

    76- Direct finger to mouth infection as in
    A- Eating food in the laboratory
    B- Contact with infected material
    C- Cigarettes or pipes
    D-All of them

    77- Stainless steel lancets sterilized in autoclave at
    A- 121 C for 15 min
    B- boiling water for 20 min
    C- 100 C for 30 min
    D- non of these

    78- The organisms in the risk group 2 present a
    A-No risk
    B- Low risk
    C- Moderate risk
    D- High risk

    79- Decontaminate bench surface are sterilized by
    A- 1h in 2500 ppm chlorine
    B- 50 % phenol
    C- both A,B is true
    D- 1h in 1000 ppm chlorine

    80- The organisms offer a moderate risk can cause
    A- Human & animal disease
    B- Serious human disease but not a serious hazard
    C- Serious human disease are transmitted from one individual to another
    D- No disease

    81- Causes of blood & mucus in feaces due to
    A- amoebic dysentery
    B- intestinal schistosomiasis
    C- trichuris trichura
    D- all of them

    82- Special precautions need to be taken when
    A- Collecting the specimens
    B-Testing the specimens
    C- Handling the infected material
    D-All of them.

    83- Causes of pale colored specimen in feaces
    A- Giardia lamblia
    B- obstructive jaundice
    C- both A,B is true
    D- non of these

    البقيه بعدين
    التعديل الأخير تم بواسطة ماستر السعودية; الساعة 29-03-2010, 12:06 PM.
    http://www.dt-works.com/moh/dt4it/fi...b2707e836a.jpg

    تعليق


    • #17
      أخوي ماستر السعوديه شاكرتلك تعبك
      بس بغيت أسألك انت متأكد من اجاباتك؟؟؟!!
      لأن الأخوان حطولي رابط فيه اجابات الأسئله من
      الأخ رشاد المصري قارنت اجاباتك مع اجاباته وجدت بعض الاختلافات
      مادري اذا تقدر تروح تشوف الاجابات وترد مني لأن كثير معتمدين على
      اجابات الأخ رشاد خلينا ننوه لو فيه خطأ
      (وكل ابن آدم خطاء)
      الرابط حتلاقيه فرد احد الأخوان ف الصفحه السابقه بارك الله فيك .
      أنا أثق بأن الله يعتني بي .. وأثق تماماً بأنه سبحانه سيسدد احتياجاتي ..
      وانا اعرف انه إن أراد الله أن يعطيني شيئاُ (وحده) قادر على ذلك ..
      ومالا يريد إعطاءه لي أنااا لا احتاجه !! ..
      لأنه..إما انه سبحانه يرى انه لا يناسبني .. أو ان التوقيت غير مناسب.. أو انه يعد لي شيئاً أفضل منه
      وفهمت اخيراً مهما حدث ..(أن الله رحيم بي )
      وان طلبت شيئاً ولم يستجب في الحال ..
      فهذا يعني اني على خطأ مهما كان رأيي في الأمر ..

      فالحمدلله على كل شيء.

      تعليق


      • #18
        الاسئله طبعتها و اديت استشاري بقسم الميكروبولوجي بالمختبر

        طبعا الاجابات المختلفه ادينيا ارقامها اتاكد منها او تاكدي من الاجابه
        http://www.dt-works.com/moh/dt4it/fi...b2707e836a.jpg

        تعليق


        • #19
          أوكي بمقارنة الاجابات ع فكره في بعض الاسئله انتا مجاوب عليها مرتين ياريت تختار وحده وبعضها مش مجاوبها :sm184:
          يله نبدا أنا بحط اجابات الاخ رشاد بحط رقم السؤال واش كانت الاجابه
          12(B)
          16(D)
          25(D)
          27(A)
          29(D)
          35(D)
          58(A)
          59(D)
          63(B)
          67(C)
          79(C)
          81(D)
          وجزيت خيراً
          أنا أثق بأن الله يعتني بي .. وأثق تماماً بأنه سبحانه سيسدد احتياجاتي ..
          وانا اعرف انه إن أراد الله أن يعطيني شيئاُ (وحده) قادر على ذلك ..
          ومالا يريد إعطاءه لي أنااا لا احتاجه !! ..
          لأنه..إما انه سبحانه يرى انه لا يناسبني .. أو ان التوقيت غير مناسب.. أو انه يعد لي شيئاً أفضل منه
          وفهمت اخيراً مهما حدث ..(أن الله رحيم بي )
          وان طلبت شيئاً ولم يستجب في الحال ..
          فهذا يعني اني على خطأ مهما كان رأيي في الأمر ..

          فالحمدلله على كل شيء.

          تعليق


          • #20
            أسئــلة رائعة جدا ياليت دكتورنا يجيب مثلها بالإختبارات:sm185:
            ماغير أسئلة صعبة وتجيب الصداع:sm175:

            تعليق

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