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Ammonia

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  • Ammonia

    Ammonia



    Why get tested?

    To detect elevated levels of ammonia in the blood, to evaluate changes in consciousness, or to help diagnose hepatic encephalopathy and Reye’s syndrome

    When to get tested?

    If a patient experiences mental changes or lapses into a coma of unknown origin; if an infant or child experiences frequent vomiting and increased lethargy as a newborn or about a week after a viral illness



    What is being tested?

    This test measures the amount of ammonia in the blood.

    Ammonia is

    a compound produced by intestinal bacteria

    and by cells in the body during the digestion of protein.

    A waste product,
    ammonia is

    normally transported to the liver,

    where it is converted into urea and glutamine.

    The urea is then carried by the blood to the kidneys,

    where it is excreted in the urine. If this “urea cycle” does not complete, ammonia builds up in the blood and passes through the blood/brain barrier.


    In the brain, ammonia and other compounds metabolized by the liver can cause hepatic encephalopathy – mental and neurological changes that can lead to confusion, disorientation, sleepiness, and eventually to coma and even death.


    Infants and children with increased ammonia levels may vomit frequently, be irritable, and be increasingly lethargic. Left untreated, they may experience seizures, respiratory difficulty, and may lapse into a coma.



    Problems with ammonia processing can arise from several sources,
    including:
    • Rare inherited defects in the urea cycle – a deficiency or defect in one or more of the enzymes necessary to complete the conversion of ammonia to urea.

    • Severe liver disease – damage limits the ability of the liver to metabolize ammonia. Acute increases in ammonia may be seen in patients with stable liver disease, especially following a triggering event such as gastrointestinal bleeding or an electrolyte imbalance.

    Decreased blood flow to liver – ammonia is less able to get to the liver.

    Reye’s syndrome – an acute condition that affects the blood, brain, and liver. It is characterized by a rise in ammonia levels and a fall in glucose and affects children and young adults. In most cases, it follows and appears to be triggered by a viral infection. Children who use aspirin are at an increased risk.

    Renal failure – the kidneys are unable to effectively rid the body of urea, leading to a build-up of ammonia in the blood.





    Sample required?

    A blood sample drawn from a vein or artery in your arm
    specimen should be placed immediately on ice





    related tests : liver panel



    And this is the Kit for Ammonia Test
    الملفات المرفقة
    التعديل الأخير تم بواسطة soma; الساعة 03-03-2008, 08:24 PM.
    ان عشت فعش حرا أومت كالاشجار وقوفا


    sigpic

  • #2
    أحسنتِ أختاه

    لا حرمتى الأجر

    ammonia also considered one of the non protein nitrogenous constitutes of the the blood plasma and its normal level ranging from 0.01 to 0.1 mg
    اللهم أكرمنا ولا تهنا

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    • #3
      شكرا سوما يعطيكي العافية معلومات قيمه
      sigpic

      قال صلى الله عليه وسلم:
      (ثلاث كفارات وثلاث درجات وثلاث منجيات وثلاث مهلكات فأما الكفارات فإسباغ الوضوء في السبرات وانتظار الصلوات بعد الصلوات ونقل الأقدام إلى الجماعات وأما الدرجات فإطعام الطعام وإفشاء السلام والصلاة بالليل والناس نيام وأما المنجيات فالعدل في الغضب والرضا والقصد في الفقر والغنى وخشية الله في السر والعلانية وأما المهلكات فشح مطاع وهوى متبع وإعجاب المرء بنفسه)

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      • #4
        مبدعة كالعادة......


        جزاك الله كل خير...

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        • #5
          very nice as usual soma
          :extra77:

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          • #6
            thank u all 4 nice passing

            and i'm glad that u like it

            god bless u all
            ان عشت فعش حرا أومت كالاشجار وقوفا


            sigpic

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            • #7
              معلومات مفيدة جدا وأجت بوقتها تماما

              ألف شكر..،،

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              • #8
                thank u Dr.rania

                for ur nice passing
                ان عشت فعش حرا أومت كالاشجار وقوفا


                sigpic

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                • #9
                  مشكوررررررررررره
                  جزاك الله خيرا

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                  • #10
                    thank u too Dr /Diana
                    god bless u
                    ان عشت فعش حرا أومت كالاشجار وقوفا


                    sigpic

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                    • #11
                      ثااانكس اختي على المعلومااات
                      http://www.s77.com/up/up3/1652624e34.jpg

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                      • #12
                        جزاك الله خير أختي الكريمة
                        معلومات قيمة بارك الله فيك
                        ووفقك لكل خير.

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                        • #13
                          thank u all

                          my best regard
                          ان عشت فعش حرا أومت كالاشجار وقوفا


                          sigpic

                          تعليق


                          • #14
                            جزاك الخالق المنان
                            http://www.arb-up.com/files/arb-up-2008-1/btx24479.gif

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                            • #15
                              مشكوررررررررررررررررررررررة

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