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50 سؤال وجواب .....في الكيمياء السريرية .

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  • 50 سؤال وجواب .....في الكيمياء السريرية .


    بسم الله الرحمن الرحيم
    أخواني أعضاء منتدى مختبرات العرب الكرام :
    لقد جمعت لكم في هذه الصفحة حوالي 50 سؤال من أسئلة البيوكمستري والتي كثيرا مانحتاج اليها في أسئلة المقابلات والاختبارات :

    حيث يتم عرض السؤال ويليه الإجابة مباشرة دون اختيارات :


    [align=left]- Which of the following usually requires concentration before analysis?
    - Cerbrospinal fluid for protein electrophoresis.

    2- Which of the following situations indicates that an instrument problem is present and requires further investigation ?
    - A series of anion gabs

    3- A trough blood sample for routine therapeutic drug monitoring is usually obtained ?
    - Just before the next scheduled dose

    4- The turbid of lipemic serum is due to an elevated level of :
    - Triglycerides

    5- In a coupled enzymatic method for measuring serum cholesterol the color change observed during the indicator reaction is dependent upon the generation of:- Hydrogen peroxides

    6- PH 8.6 is used for serum protein electrophoresis so that :
    - All serum proteins will have a net negative charge .

    7- When quantitating serum protein using the biuret reaction , the biuret reagent is reacting with :
    - Peptide bonds in proteins

    8- Which one of the following protein fractions , when separated in serum by electrophoresis on cellulose acetate , contains a single protein ?
    - Albumin

    9- Osmolality measurements determine the :
    - Moles of dissolved solutes per kilogram of solvent

    10- When using an automated instrument , the amount of carryover between consecutive samples is not affected by :
    - Using a serum plank

    11- A serum sample is diluted 1 to 3, 1:3 before analysis and the following results obtained :
    Total protein – 4.1 g /dl
    Albumin - 1.5 - g/dl

    Which total protein concentration should be reported ?
    - 12.3 g/dl

    12- In an adult , a blood glucose level of 35 mg /dl is :
    - Dangerously low

    13- Measurements of urinary human chorionic gondotropin (HCG) in men can be used :
    - Detect testicular tumors

    14- Xanthochromic cerebrospinal fluid is an indicator of:
    - Cerebral hemorrhage


    15- A creatinine clearance result below the normal reference range most likely indicates a decrease in :
    - Renal glomerular filtration

    16- A physician suspects that a patient has Cushing syndrome . Based on this information , which of the following tests would assist in this diagnosis ?
    - Cortisol level

    17- Identify the results that are not in electrolyte balance . ( Results are in mmol/L )
    - Na : 145 K : 4.0 CL :90 CO2 :15

    18- Which of the following urine specimens is most useful when screening for glucoseuria :
    - 2 – hour postprandial specimens

    19- What is the longest time that a urine specimen can remain at room temperature before it is no longer considered acceptable for analysis ?
    - 2 hour

    20- Which of the following situations requires corrective action before proceeding with specimen testing ?
    - Reagent strip protein result is trace when using negative control material

    21- Which protein test is not able to detect immunoglobulin light chains in urine ?
    - Reagent strip protein test .

    22- Which of the following sets of the urinalysis results , physical appearance and SG is physiologically possible and indicates a concentrated urine
    - SG = 1.030 , Color = yellow

    23- Urine sediment that contains red blood cells , red blood cell cast , protein , is characteristic of :
    - Acute glomerulonephritis .

    24- Hyaline casts are found in increased numbers in the urine sediment
    - Following strenuous exercise

    25- Which of the following urinalysis findings include contradictory results that should not be reported :]
    - PH 6.0 - bilirubin: Positive - ammonium biurate crystals

    26- The following crystals are observed in a randomly collected urine specimen with a pH of 7.0 :
    - Triple phosphate

    27- When present in the urine . which the following substances could cause false- positive reagent strip blood results :
    - Myoglobin

    28- Which of the following analytes can deteriorate if a blood specimen is exposed to light :
    - Bilirubin

    29- Which of the following collection tubes is the specimen of choice for the determination of glycated hemoglobin :
    - EDTA tube

    30- Which of the following serum samples is satisfactory for alkaline phosphatase measurement
    - Sample maintained at room temperature for 2 hours .

    31- Which of the following changes occurs in a serum specimen that is maintained at 4 C for 8 hours :
    - Alkaline phosphatase activity increased

    32- A centrifuge is loaded with patient samples and turned on . it begins to vibrate and dance across the table top . which of the following statements best accounts for this observation?
    - The tubes are not balanced in the carriers .

    33- Which of the following enzymes catalyzes the conversion of glucose to hydrogen peroxide and gluconic acid :
    - Glucose oxidase

    34- Which of the following constituents has the greatest effect on serum osmolality :
    - Sodium

    35- When iontophoresis is used to collect sweat for chloride analysis , pilocarpine is used to:
    - Induce sweat secretion

    36- Which of the following methods is not used to quantitate serum albumin:
    - Sulfosalicylic acid (SSA) precipitation

    37- If moderately hemolyzed serum specimen is used for protein electrophoresis , which of the following protein fractions will be elevated :
    - Beta – globulin

    38 – the normal ratio of bicarbonate ion to carbonic acid in arterial blood is :
    - 20 : 1

    38- Increased serum uric acid is found in each the following conditions except :
    - Hypothyroidism

    39- If LDL receptors are nonfunctional due to disease .the plasma level of which lipid would increase the most?
    - Cholesterol

    40- Which of the following enzymes provides the best indication of obstructive liver disease
    - Alkaline phosphatase

    41- Urine preservation by refrigeration can cause :
    - Increased turbidity due to precipitate of solutes .

    42- Which of the following tests is not used to assess the kidney ability to concentrate the urine ?
    - PH

    43- Which of these sugars cannot be detected in urine using the copper reduction test :
    - Sucrose

    44- All of the following substances can affect the detection of urine glucose using reagent strips except:
    - Galactose

    45- The presence of waxy casts in urine sediment and a fixed urine SG of 1.010 correlates best with :
    - renal failure

    46- urine sediment that contains free fat globules and fatty casts is characteristic of:
    - the nephritic syndrome .

    47- serum total protein results obtained using the biuret reaction can be falsely increased it :
    - The specimen is hemolyzed .

    48- An enzyme assay that shows substrate depletion should be repeated using :
    - Less sample

    49- Which of the following urinalysis results is considered " abnormal" clinically significant :
    - Bilirubin === small

    50- Which of the following terms is considered in appropriate for reporting urine color :
    - Bloody [/align]
    التعديل الأخير تم بواسطة فيصل; الساعة 18-03-2007, 05:54 PM.
    إذا لم تجد من يسعدك فحاول أن تسعد :sm188: نفسك .. :sm188:

    وإذا لم تجد من يضيء لك قنديلاً ..
    فلا تبحث عن اخر أطفأه !
    وإذا لم تجد من يغرس في أيامك ورده ..
    فلا تسع لمن غرس في قلبك سهماً ومضى:sm188:

  • #2
    يعطيك ألف عااافيه

    على هالأسئله

    وإنشالله الجميع يستفيد منها

    تحياتي لك ,,

    تعليق


    • #3
      اسئله واجوبه حلوه...

      وممكن انك ترتب الموضوع ...او اذا احد من المشرفين اذا ماعليكم امر..

      وشكراااااا لك
      [moveo=left]سلااااااااااااااااام[/moveo]
      http://www.tntup.com/photo/img2/1663...5a9acb/hiv.jpg

      تعليق


      • #4
        حياكم الله أخواني الاعضاء على المرور وعندي رجاء من المشرفين وهي المساعدة في ترتيب الموضوع ليستفيد منه الجميع وشكرا
        إذا لم تجد من يسعدك فحاول أن تسعد :sm188: نفسك .. :sm188:

        وإذا لم تجد من يضيء لك قنديلاً ..
        فلا تبحث عن اخر أطفأه !
        وإذا لم تجد من يغرس في أيامك ورده ..
        فلا تسع لمن غرس في قلبك سهماً ومضى:sm188:

        تعليق


        • #5
          شكراً لك الامير القحطاني

          أسئلة جميلة , و استفدت منها شخصياً

          و تم تعديل المشاركة و إصلاحها ...

          بالتوفيق
          مجلـة مختبرات العرب
          أطلس مختبرات العرب

          تابعونا على :

          تعليق


          • #6
            [align=center]فيها فائدة عظيمة

            شكراً لجهدك الرائع

            وننتظر جديدك من المواضيع المميزة[/align]

            تعليق


            • #7
              بارك الله فيك يا امير والله موضوع ممتاااااااااااااااااااااااااااز ودائما بالتوفيق

              تعليق


              • #8
                شكراً اخي ..

                موضوع عظيم الفائدة ..

                تعليق


                • #9
                  نشكر لجميع الاعضاء مرورهم الكريم
                  ونقول لهم أنتظرونا في 50 سؤال في الميكروبيولوجي قريبا
                  وشكراااااااا
                  إذا لم تجد من يسعدك فحاول أن تسعد :sm188: نفسك .. :sm188:

                  وإذا لم تجد من يضيء لك قنديلاً ..
                  فلا تبحث عن اخر أطفأه !
                  وإذا لم تجد من يغرس في أيامك ورده ..
                  فلا تسع لمن غرس في قلبك سهماً ومضى:sm188:

                  تعليق


                  • #10
                    مشكووووووووووور اخى الغالى على الاسئلة القيمة

                    تحياتى

                    تعليق


                    • #11
                      جزاك الله خيرا

                      تعليق


                      • #12
                        يعطيك الف عافية على المعلومات

                        تعليق


                        • #13
                          Thanx alot
                          7elo kteer
                          ان عشت فعش حرا أومت كالاشجار وقوفا


                          sigpic

                          تعليق


                          • #14
                            مشكور علي الاسئلة الجميلة والمجهود

                            تعليق


                            • #15
                              بارك الله فيك ............ عمل رائع ..شكرا جزيلا
                              http://<a href="http://www.baby-gaga...AN.png</a></a>

                              تعليق

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