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    Blood culture - Overview

    yagocom
    yagocom
    المشرف العام

    عدد الرسائل : 200
    العمر : 50
    تاريخ التسجيل : 2008-07-26

    Blood culture - Overview Empty Blood culture - Overview

    Post by yagocom on Sat Dec 24, 2011 9:38 pm


    Definition of Blood culture:A blood culture is a laboratory test to check for bacteria or other microorganisms in a blood sample. Most cultures check for bacteria.

    A culture may be done using a sample of blood, tissue, stool, urine, or other fluid from the body. See also:

    •How the test is performed:
    A blood sample is needed. Blood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is cleaned with germ-killing medicine (antiseptic). The health care provider wraps an elastic band around the upper arm to apply pressure to the area and make the vein swell with blood.

    Next, the health care provider gently inserts a needle into the vein. The blood collects into an airtight vial or tube attached to the needle. The elastic band is removed from your arm.

    Once the blood has been collected, the needle is removed, and the puncture site is covered to stop any bleeding.

    In infants or young children, a sharp tool called a lancet may be used to puncture the skin and make it bleed. The blood collects into a small glass tube called a pipette, or onto a slide or test strip. A bandage may be placed over the area if there is any bleeding.

    It is very important that the blood sample does not become contaminated. The sample is sent to a laboratory, where it is placed in a special dish and watched to see if microorganisms grow. This is called a culture. Most cultures check for bacteria. If bacteria does grow, further tests will be done to identify the specific type.

    A gram stain may also be done. A gram stain is a method of identifying microorganisms (bacteria) using a special series of stains (colors). For example, see skin lesion gram stain.

    How to prepare for the test:No special preparation is needed for a blood culture. For information on preparing for a blood sample, see venipuncture.

    How the test will feel:
    There is no pain associated with a blood culture. For information on how giving a blood sample feels, see venipuncture.

    Why the test is performed:Your doctor may order this test if you have symptoms of a blood infection such as bacteremia or septicemia, a serious, life-threatening infection that gets worse very quickly.

    The blood culture will help identify the type of bacteria causing the infection. This helps the doctor determine your best course of treatment.



    Read more: http://www.umm.edu/ency/article/003744.htm#ixzz1hTjWK500
    ashdom
    ashdom

    عدد الرسائل : 171
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    العمل/الترفيه : Anesthesiologist
    تاريخ التسجيل : 2010-07-08

    Blood culture - Overview Empty Re: Blood culture - Overview

    Post by ashdom on Sat Jan 07, 2012 12:47 pm

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