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أسئلة بحاجة الـى اجابات

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  • أسئلة بحاجة الـى اجابات

    تحياتي الى الجميع..

    أرجو من الجميع المشاركة في وضع الحلول الصحيحة لهذه الاسئلة..مع خالص الشكر لتعاونكم ومشاركتكم..


    1-in a disc diffusion susceptibility test, which of the following can result
    if discs are placed on the inoculated media and left at room temperature
    for an hour before incubation ???


    a-the antibiotic whould not diffuse into the medium resulting in no zone.
    b-zones of smaller diameter would result
    c-zones of larger diameter would result
    d-there would be no effect on the final zone diameter

    2-the stock culture needed fore quality control testing of motility is

    a-salmonella typhimurium/E.coli
    b-E.coli/pseudomonas aerogonosa
    c-serratia marcescens /E.coli
    d-shigella sonnei /E.coli

    3-an unusual nomber of methicillin-resistant staphylococcus aureus
    determined by the Kirby-Bauer method were isolated in the laboratory
    in the past month.which of the following is the most likely explanation


    a-incubation of the susceptibility plates at 35 C
    b-deterioration of the methillin discs
    c-inoculation of plates 10 minuts after standarizing of the inoculum
    d-standarization of the inoculum to 0.5 McFarland turbidity standard

    4- total leukocytes count=10,000/ml
    NRBCs that are seen per 100 leukocytes =25
    what is the correct lukocytes count ?


    a- 2,000/ml
    b-8,000/ml
    c-10,000/ml
    d-12,000/ml

    5- hematochrit =20%
    RBC=1,500,000/ML
    Haemoglobin=6mg/dl
    what is the mean corpuscular volume MCV ??


    a-68 fl
    b-75f l
    c-115 fl
    d-133 fl

    6-what is the formula for calculating the unknown concentration based
    on Beers law??



    7-which of the following statements about ABO-haemolytic disease of newborn are true?

    a-it usually requires an exchange transfusion
    b-it can occur in the first born
    c-it requently results in stillbirth
    d-it is frequently seen in groupe O mothers

    now...
    -a ,b and c are correct
    -only a and c are correct
    -only d is correct
    -all are correct

    8-which immunoglobulin is associated with allergic reactions??

    a-IgA
    b-IgE
    c-IgG
    d-IgM

    9-an RNA-containing virus is

    a-HAV
    b-HBV
    c-CMV
    d-HSV

    أرجووو من الجميع المشاركة باعطاء اجابات صحيحة..
    وتقبلوا مني فاااائق الاحترااام ..

  • #2
    الاجابات والله اعلم ارجو ان تكون صحيحه
    1: a
    2:b
    3:a
    4:b
    5:d
    7:a,b,c
    8:b
    9:b

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