Uhs ,Tsmc, MCQ , Immunology For Medical Lab Year 3 Semester 2,

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  • 1/73 Questions

    ៧.​ ដើម្បីដឹងថាប្រតិករតេស្ត Serology ​ដែលទទួលបានថ្មីមានគុណភាពល្អលើការធ្វើវិភាគអ្នកមន្ទីរពិ​សោធន៍ត្រូវតែ

    • ពិនិត្យមើនថ្ងៃកំណត់នៃការប្រើប្រាស់ ស្ថានភាពនៃកញ្ចប់តេស្ត
    • បរិយាកាសការរក្សាទុកទៅតាមការណែនាំរបស់តេស្ត
    • ត្រូវធ្វើវិភាគសេរ៉ូមក្រុងត្រូលដែលដឹងលទ្ធផលជាមុន (Pos and Neg controls)
    • ពិនិត្យកញ្ចប់តេស្ត ថ្ងៃកំណត់ប្រើ វិភាគតាមការណែនាំនៃតេស្តនិងមានតេស្តកុងត្រូលផងដែរ
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About This Quiz

This quiz, titled 'UHS, TSMC, MCQ, Immunology for Medical Lab year 3 semester 2,' assesses knowledge in serology techniques and immunological assays. It focuses on disease detection methods, antigen properties, and factors affecting agglutination tests, crucial for third-year medical laboratory students.

Uhs ,Tsmc, MCQ , Immunology For Medical Lab Year 3 Semester 2, - Quiz

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  • 2. 

    ២០. ភាពត្រឹមត្រូវនៃការចេញលទ្ធផលតេស្តវិជ្ជមានបាន អ្នកធ្វើវិភាគត្រូវតែៈ 

    • ពិនិត្យទៅលើតេស្តអ្នកជំងឺថាមានប្រតិកម្មឬអត់ ហើយផ្ទៀងផ្ទាត់ទៅនឹងកុងត្រូល

    • ពិនិត្យទៅលើតែតេស្តអ្នកជំងឺថាមានប្រតិកម្មឬអត់

    • ធ្វើតេស្តកុងត្រូលរៀងរាល់ថ្ងៃតេស្ត

    • ត្រូវពិនិត្យទាំងពីរ (កុងត្រូលនឹងតេស្ត) មានប្រតិកម្មឬអត់ & ត្រូវធ្វើតេស្តកុងត្រូលជាប្រចាំរាល់ថ្ងៃវិភាគឈាមអ្នកជំងឺ

    Correct Answer
    A. ត្រូវពិនិត្យទាំងពីរ (កុងត្រូលនឹងតេស្ត) មានប្រតិកម្មឬអត់ & ត្រូវធ្វើតេស្តកុងត្រូលជាប្រចាំរាល់ថ្ងៃវិភាគឈាមអ្នកជំងឺ
    Explanation
    The correct answer is to check both the hormone levels (estrogen and testosterone) and to perform regular breast examinations. This is because hormonal imbalances can contribute to the development of breast cancer, and it is important to monitor both estrogen and testosterone levels. Additionally, regular breast examinations can help detect any abnormalities or changes in the breast tissue, which can be indicative of breast cancer.

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  • 3. 

    តើប្រយោគខាងក្រោមនេះណាមួយត្រឹមត្រូវជាងគេទៅលើការធ្វើវិភាគរោគវិនិឆ្ឋ័យនៅក្នុងមន្ទីពិសោធន៏ហើយទទួលបានលទ្ធផលល្អ?

    • មានវត្ថុវិភាគល្អ និងប្រតិករល្អ

    • បន្ទប់ពិសោធន៏ស្អាត និង ប្រតិករល្អ

    • សំភារះនិងឧបករណ៏ត្រឹមត្រូវ វត្ថុវិភាគ និងប្រតិករល្អ

    • មានជំនាញយល់ច្បាស់ពីគោលការណ៏នៃតេស្ត សំភារះនិងឧបករណ៏ត្រឹមត្រូវ,វត្ថុវិភាគ និង ប្រតិករល្អ

    Correct Answer
    A. មានជំនាញយល់ច្បាស់ពីគោលការណ៏នៃតេស្ត សំភារះនិងឧបករណ៏ត្រឹមត្រូវ,វត្ថុវិភាគ និង ប្រតិករល្អ
    Explanation
    This answer states that having a good understanding of the subject matter, clear and relevant arguments, and effective presentation skills are important factors for achieving good results in academic research. It suggests that having a deep understanding of the topic, being able to analyze and discuss the issues, and presenting the findings in a coherent and convincing manner are key to obtaining good outcomes in academic research.

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  • 4. 

    36. វិធីសាស្ត្រទីមួយនៃការចំលងមេរោគស្វាយ(T.Pallidum)គឺ(The primary mode oftransmission of T.Pallidum is):

    • តាមការប្រលាក់ទៅនឹងម្ជុល(Through contaminated needles)

    • តាមការរួមភេទ(Sexual transmission)

    • ប៉ះទៅនឹងឈាម(With blood contact)

    • មិនប៉ះផ្ទាល់(Indirect contact)

    Correct Answer
    A. តាមការរួមភេទ(Sexual transmission)
  • 5. 

    80. តើអ្វីខ្លះអាចជាកត្តាធ្វើអោយមានកំហុសឆ្គងដែលបណ្តាលអោយលទ្ធផលតេស្តមិនត្រឹមត្រូវ?

    • កត្តាវត្ថុវិភាគ

    • កត្តាមនុស្ស

    • កត្តាប្រតិករ និងសំភារះ

    • កត្តា មនុស្ស វត្ថុវិភាគ ប្រតិករ

    Correct Answer
    A. កត្តា មនុស្ស វត្ថុវិភាគ ប្រតិករ
    Explanation
    The correct answer is "កត្តា មនុស្ស វត្ថុវិភាគ ប្រតិករ" (Humans, animals, plants, and the environment). This answer includes all the major components of an ecosystem. Ecosystems are made up of living organisms (such as humans, animals, and plants) and their physical surroundings (such as the environment). All of these components are interconnected and depend on each other for survival.

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  • 6. 

    31. តើមេរោគរលាកថ្លើមមួយណាដែលមានVacinneសំរាប់បង្ការ? (Which of the following areavailable vaccin for hepatitis virus?)

    • Hepatitis B virus (HBV)

    • Hepatitis C virus (HCV)

    • Hepatitis D virus (HDV)

    • Hepatitis E virus (HEV)

    Correct Answer
    A. Hepatitis B virus (HBV)
    Explanation
    Hepatitis B virus (HBV) is a vaccine-preventable viral infection that affects the liver. It is transmitted through contact with the blood or other body fluids of an infected person. The HBV vaccine is highly effective in preventing infection and has been available since the 1980s. It is recommended for all infants, as well as for adults at risk of infection. Hepatitis C virus (HCV), Hepatitis D virus (HDV), and Hepatitis E virus (HEV) do not currently have vaccines available for prevention.

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  • 7. 

    79.ដើម្បីបកស្រាយលទ្ធផលតេស្តរហ័ស(Immunochromatographic)បានត្រឹមត្រូវផ្អែកលើ

    • តាមពេលកំណត់អានលទ្ធផល Time

    • ពិនិត្យកន្លែងកុងត្រូលC

    • ពិនិត្យកន្លែងតេស្តT

    • ពេលវេលាកំណត់ នឹងមើលកនែ្លងតេស្ត កុងត្រូល

    Correct Answer
    A. ពេលវេលាកំណត់ នឹងមើលកនែ្លងតេស្ត កុងត្រូល
  • 8. 

    72.តើជាទូទៅមីក្រូផ្លាកប្រភេទណាដែលប្រើក្នុងការធ្វើវិភាគលើតេស្ត Serodia?

    • មីក្រូផ្លាកមានគូទរាងអក្សរ V

    • មីក្រូផ្លាកមានបាតរាងជាអក្សរ U

    • មីក្រូផ្លាកមានបាត រាបស្មើ

    • មីក្រូផ្លាកមានបាត រាបស្មើ នឹង មិនស្មើ

    Correct Answer
    A. មីក្រូផ្លាកមានបាតរាងជាអក្សរ U
    Explanation
    The correct answer is that the serodia test uses a specific type of reagent that detects antibodies with the U antigen on the red blood cells. This means that the serodia test is specifically looking for the presence of antibodies with the U antigen, rather than any other antigens such as V or non-specific antigens.

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  • 9. 

    ៤.​តើ Antigen បង្ករឡើងដោយសារ អ្វី?

    • ប្រួតេអ៊ីន ប៉ូលីសាខារីត នុក្លេអ៊ីចអាស៊ីត

    • អាស៊ីតនុយក្លេអ៊ិច (Nucleic Acids)

    • ប៉ុលីសាខារីត (Polysaccharides)

    • ប្រូតេអ៊ីន (Proteins)

    Correct Answer
    A. ប្រួតេអ៊ីន ប៉ូលីសាខារីត នុក្លេអ៊ីចអាស៊ីត
    Explanation
    Antigens are substances that can stimulate an immune response in the body. They can be proteins, polysaccharides, nucleic acids, or lipids. In this case, the correct answer is "Bacteria, pollen, and viruses" which are examples of antigens that can trigger an immune response.

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  • 10. 

    ៨. នៅក្នុងតេស្ត Serodia HBs Ag ល្បាយសូលុស្យុង "D" គឺជា៖

    • Control Cells

    • Control Positive

    • Control Negative

    • Sample diluent

    Correct Answer
    A. Control Cells
  • 11. 

    ១២. ការធ្វើតេស្តកុងត្រូល វីជ្ជមាននិងអវិជ្ជមាន នៅគ្រប់ពេលធ្វើតេស្ត Serodia តេស្តរប័សគឺ៖

    • ចំណាយប្រតិករឥតប្រយោជន៍

    • សំរាប់ផ្ទៀងផ្ទាត់លទ្ធផលមួយលទ្ធផលអ្នកជំងឺ

    • បង្កើននូវទំនុកចិត្តិនិងភាពត្រឹមត្រូវការធ្វើវិភាគ

    • ពិនិត្យគុណភាពតេស្ត ផ្ទៀងផ្ទាត់លទ្ធផលអ្នកជំងឺ និងទំនុកចិត្តិ

    Correct Answer
    A. ពិនិត្យគុណភាពតេស្ត ផ្ទៀងផ្ទាត់លទ្ធផលអ្នកជំងឺ និងទំនុកចិត្តិ
    Explanation
    The correct answer is to evaluate the accuracy of the test results and the reliability of the test. By assessing the quality of the test, it ensures that the results obtained are reliable and can be used to make accurate diagnoses. This is important in order to provide appropriate treatment and care for patients. Additionally, evaluating the performance of the test helps to identify any areas for improvement and to optimize the testing process.

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  • 12. 

    42.ខាងក្រោមនេះជាបច្ចេកទេសនៃការធ្វើរោគវិនិច្ជ័យនៅក្នុងមន្ទីរពិសោធន៏សំរាប់មេរោគស្វាយលើកលែងតែ (The following are the laboratory diagnosis techniques for syphilis infected, except): 

    • Bacteria culture

    • Serological tests

    • Direct detection of the spirochete

    • Immunochromatographic test

    Correct Answer
    A. Bacteria culture
    Explanation
    Bacteria culture is not a laboratory diagnosis technique for syphilis infection. Syphilis is caused by the spirochete bacterium Treponema pallidum, but the culture of this bacterium is difficult and time-consuming. Therefore, other laboratory techniques such as serological tests, direct detection of the spirochete, and immunochromatographic tests are used for the diagnosis of syphilis.

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  • 13. 

    ១៣. ខាងក្រោមនេះជាសំភារះសំរាប់ធ្វើវិភាគ Rheumatoid Factor (Biotech)-FR, លើកលែងតែ៖

    • Pipette tips

    • Microplate

    • Disposal glove

    • Card tests

    Correct Answer
    A. Microplate
    Explanation
    The correct answer is "Microplate". The question is asking for a suitable tool for performing the Rheumatoid Factor (Biotech)-FR test. Out of the options given, a microplate is the most appropriate choice as it is commonly used in laboratory settings for conducting various tests, including immunoassays. A microplate consists of multiple wells that can hold small volumes of samples, reagents, and controls, allowing for efficient and simultaneous testing of multiple samples.

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  • 14. 

    52. ដើម្បីបកស្រាយលទ្ធផលតេស្តនិមួយៗ​បានត្រឺមត្រូវ អ្នកមន្ទីរពិសោធន៏​ត្រូវតែ:

    • មានចំណេះដឺងទូទៅពីមន្ទីរពិសោធន៏ជ្រៅជ្រះ

    • យល់ច្បាស់ពីគោលការណ៏នៃតេស្តនិមួយបានច្បាស់លាស់

    • ជាអ្នកបច្ចេកទេសមន្ទីរពិសោធន៏

    • អ្នកមានជំនាញយូរឆ្នាំនៅក្នុងមន្ទីរពិសោធន៏

    Correct Answer
    A. យល់ច្បាស់ពីគោលការណ៏នៃតេស្តនិមួយបានច្បាស់លាស់
    Explanation
    To accurately solve each question, the examiner must have a good understanding of the subject matter. In this case, the correct answer suggests that the examiner should have a deep understanding of the principles and concepts related to the specific topic. This knowledge will allow them to accurately interpret and analyze the given data or information, enabling them to arrive at the correct solution.

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  • 15. 

    56. ការធ្វើវិភាគរាប់កោសិកាCD4សំរាប់:

    • រកមេរោគអេដស៏

    • កំណត់នូវស្ថានភាពប្រពន្ធភាពសាំុរបស់អ្នកជំងឺ

    • តាមដានការព្យាបាលជាមួយនឹងមេរោគអេដស៏

    • កំណត់នូវកំរិតភាពសាំុនិងតាមដានការព្យាបាលនឹងមេរោគអេដស៏

    Correct Answer
    A. កំណត់នូវកំរិតភាពសាំុនិងតាមដានការព្យាបាលនឹងមេរោគអេដស៏
    Explanation
    This answer states that CD4 count and monitoring of immune function are important for determining the severity of HIV infection and assessing the progression of the disease. CD4 count is a measure of the number of CD4 T cells in the blood, which are a key component of the immune system. Monitoring CD4 count can help determine the level of immune suppression and guide treatment decisions. Additionally, monitoring for signs and symptoms of opportunistic infections and assessing the level of immune activation can provide further information about the progression of HIV infection.

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  • 16. 

    58. ការធ្វើវិភាគរាប់កោសិកា​CD4 ប្រើវត្ថុវិភាគជាឈាមមិនកកដែលបូមដាក់ទីបដែលមានសារធាតុមិនអោយឈាមកកប្រភេទ: 

    • សារធាតុHeparin

    • សារធាតុSodium cytrat

    • សារធាតុEDTA

    • សារធាតុpostassium oxalate

    Correct Answer
    A. សារធាតុEDTA
    Explanation
    EDTA ជាសារធាតុដែលប្រើសម្រាប់ធ្វើវិភាគរាប់កោសិកាកែលម្អិតនៃវត្ថុវិភាគជាឈាម។ វាធ្វើឲ្យសារធាតុដែលមានប្រភេទកកិតគ្រប់ប្រភេទជាឈាមកកប្រភេទដែលកើតមានក្នុងវត្ថុវិភាគមិនអាចឈាមកកប្រភេទបាន។

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  • 17. 

    ការធ្វើរោគវិនិច្ឆិយនៃជំងឺឆ្លង ដោយប្រើបច្ចេកទេសសេរ៉ូសាស្រ្តគឺ

    • កំណត់នៅមេរោគដែលបង្ករជំងឺ

    • កំណត់នូវ Ab ដែលបង្កើតឡើងទប់ទល់ទៅនឹងមេរោគ

    • កំណត់នូវកំហាប់នៃ Ab នឹងAg នៅក្នុងឈាម

    • កំណត់នួវ៖មេរោគបង្កជំងឺប្រភេទAb និង កំហាប់ AgនឹងAb ក្នុងខ្លួន

    Correct Answer
    A. កំណត់នួវ៖មេរោគបង្កជំងឺប្រភេទAb និង កំហាប់ AgនឹងAb ក្នុងខ្លួន
    Explanation
    The explanation states that the diagnosis of the disease involves determining the presence of Ab (antibodies) and the concentration of Ag (antigen) in the body. This suggests that the immune system is producing antibodies in response to the antigen, which indicates the presence of the disease. Therefore, the correct answer is that the diagnosis of the disease involves detecting the type of Ab and the concentration of Ag in the body.

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  • 18. 

    ៥. តើកត្តាអ្វីដែលមានឥទ្ធិពលលកការធ្វើវិភាគដោយប្រើរូបមន្ត Agglutination tests?

    • កំហាប់នៃ Ab(Concentration of Ab)

    • កំដៅ (Temperature)

    • កំដៅ កំហាប់នៃ Ab, អាស៊ីត pH

    • អាស៊ីត pH

    Correct Answer
    A. កំដៅ កំហាប់នៃ Ab, អាស៊ីត pH
  • 19. 

    78.ដើម្បីបកស្រាយលទ្ធផលតេស្តSerodiaអោយបានត្រឹមត្រូវគួរតែផ្អែលលើ

    • កុងត្រូលវិជ្ជមានPositive control

    • កុងត្រូលអវិជ្ជមាន(Negative control)

    • កុងត្រូលParticle/Cells(Control Particale /Cell)

    • កុងត្រូលវិជ្ជមាន អវិជ្ជមាន និង កុងត្រូល Particle /Cells

    Correct Answer
    A. កុងត្រូលវិជ្ជមាន អវិជ្ជមាន និង កុងត្រូល Particle /Cells
    Explanation
    The correct answer is the combination of positive control, negative control, and control particle/cells. These three components are necessary in order to accurately interpret the results of the Serodia test. The positive control is used to ensure that the test is functioning correctly and can detect the presence of the target antibodies. The negative control is used to verify that there is no interference or false positive results. The control particle/cells are used to confirm that the test is working properly and that the reagents are functioning correctly. Therefore, all three components are essential for obtaining accurate and reliable results.

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  • 20. 

    ១០. តើខាងក្រោមនេះមួយណាត្រឹមត្រូវជាង ទៅលើការអានសទ្ធភលនៃតេស្តSerodia? 

    • ដល់ម៉ោងកំណត់អានលទ្ធផល

    • នៅពេលដែលកុងត្រូល Paticle/Cell ធ្លាក់ដល់កំរិត

    • ពិនិត្យេមើលែតរុន្ធ របស់ Sensitized

    • ដល់ម៉ោងកំណត់រួចពិនិត្យរុន្ធ Sensitized/ Non sensitized

    Correct Answer
    A. ដល់ម៉ោងកំណត់រួចពិនិត្យរុន្ធ Sensitized/ Non sensitized
    Explanation
    This answer suggests that the correct step in the process of reading the Serodia test results is to evaluate the sensitized and non-sensitized reactions at the specified time. This step is important in determining the presence or absence of antibodies in the patient's blood.

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  • 21. 

    ១៤. តើតេស្តសំរាប់រកAnti Stretolysin O (ASO)តេស្តប្រភេទអ្វី?

    • Agglutination Inhibitor

    • Haemagglutination test

    • Latex Passive Agglulination test

    • Immuno Fixation

    Correct Answer
    A. Latex Passive Agglulination test
    Explanation
    The correct answer is "Latex Passive Agglutination test". This test is used to detect the presence of Anti-Streptolysin O (ASO) antibodies in the blood. In this test, latex particles coated with Streptolysin O antigen are mixed with the patient's serum. If ASO antibodies are present in the serum, they will bind to the latex particles, causing them to clump together, indicating a positive result. This test is commonly used to diagnose a recent or past Streptococcal infection.

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  • 22. 

    ជាធម្មតាការចំលងការចំលងតាមលាមក តាមផ្លូវអាហារ គឺជាការចំលងរបស់មេរោគណាមួយខាងក្រោម(The fecal/oral route is the common transmission for) 

    • HAV និង HEV

    • HBV/HDV

    • HCV

    • HVE

    Correct Answer
    A. HAV និង HEV
    Explanation
    HAV and HEV are transmitted through the fecal/oral route, which means that the viruses are present in the feces of infected individuals and can be transmitted to others through contaminated food, water, or objects. This mode of transmission is common for these viruses because they can survive in the environment and remain infectious for extended periods of time. In contrast, HBV, HDV, HCV, and HVE are primarily transmitted through blood and bodily fluids, such as through sexual contact, sharing needles, or from mother to child during childbirth.

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  • 23. 

    54. ការធ្វើតេស្តELISA សំរាប់HIV-1 និងឃើញលទ្ធផលរបស់កុងត្រូលវិជ្ជមានទៅជាអវិជ្ជមាន

    • យល់ព្រមទៅលើលទ្ធផលតេស្តរបស់អ្នកជំងឺអវិជ្ជមាន

    • ធ្វើតេស្តឡើងវិញគ្រប់វត្ថុវិភាគអ្នកជំងឺដែលមានលទ្ធផលតេស្តអវិជ្ជមាន

    • ធ្វើតេស្តឡើងវិញគ្រប់វិភាគអ្នកជំងឺដែលមានលទ្ធផលតេស្តវិជ្ជមាន

    • ធ្វើតេស្តឡើងវិញគ្រប់វិត្ថុភាគរបស់អ្នកជំងឺ

    Correct Answer
    A. ធ្វើតេស្តឡើងវិញគ្រប់វិត្ថុភាគរបស់អ្នកជំងឺ
    Explanation
    The correct answer suggests that the ELISA test should be repeated for all the different components of the patient's blood in order to confirm the presence of HIV-1 and obtain accurate results. This ensures that all aspects of the test are thoroughly examined and any potential errors or inconsistencies are minimized.

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  • 24. 

    ខាងក្រោមនេះជាបច្ចេកទេស / រួបមន្ត Serologyសំរាប់កំណត់ឬរកប្រភេទdiseaseលើកលែងតែ

    • Precipitation technique

    • Sequencing technique

    • Agglutination technique

    • Chemiluminescent technique

    Correct Answer
    A. Sequencing technique
    Explanation
    The sequencing technique is used to determine the exact order of nucleotides in a DNA or RNA molecule. This technique allows scientists to identify the specific sequence of genetic material, which can be used to diagnose diseases, study genetic variations, and understand the structure and function of genes. It involves the use of specialized equipment and methods to read and interpret the sequence of nucleotides. This technique is different from the other techniques mentioned, such as precipitation, agglutination, and chemiluminescent techniques, which are used for different purposes in serology.

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  • 25. 

    57. ខាងក្រោមនេះតើមួយណាជាបច្ចេកទេសដែលប្រើសំរាប់រាប់កោសិកា​ CD4?

    • Hematology analyzer

    • Chemiluomination assay

    • Flow cytometry

    • Real-time PCR

    Correct Answer
    A. Flow cytometry
    Explanation
    Flow cytometry is a technique commonly used to measure the number of CD4 cells in a blood sample. It involves labeling the CD4 cells with fluorescent antibodies and passing them through a flow cytometer, which can detect and quantify the labeled cells. This method allows for quick and accurate measurement of CD4 cell count, making it an essential tool in the diagnosis and monitoring of HIV/AIDS. Hematology analyzers, chemilumination assays, and real-time PCR are not typically used for CD4 cell count measurement.

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  • 26. 

    33. ខាងក្រោមនេះជាប្រយោគដែលត្រឹមត្រូវសំរាប់HBc marker លើកលែងតែ(The followingare the property of HBc marker, Except:

    • Antigen not measurable

    • Recent infection IgM HBc-Ab

    • Test in dornor blood

    • Identify new HBV infection

    Correct Answer
    A. Test in dornor blood
    Explanation
    The correct answer is "Test in donor blood". The other options are all properties of the HBc marker. The HBc marker can be used to identify new HBV infection, detect recent infection using IgM HBc-Ab, and the antigen can be measured. However, testing in donor blood is not a property of the HBc marker.

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  • 27. 

    35. លទ្ធផលវិជ្ជមានខុសនៃតេស្តNon-Treponemalសំរាបើមេរោគស្វាយ តើបណ្ដាលមកពីអ្វី? (False-positive non-treponemal tests for syphilis may be due to which of thefollowing?)

    • Systemic lupus

    • Pregnancy

    • Infectious mononucleosis

    • Pregrancy; SLE; Infectious monoclonal

    Correct Answer
    A. Pregrancy; SLE; Infectious monoclonal
    Explanation
    False-positive non-treponemal tests for syphilis may be due to pregnancy, systemic lupus erythematosus (SLE), and infectious mononucleosis. This means that individuals who are pregnant, have SLE, or have infectious mononucleosis may test positive for syphilis even if they do not actually have the infection. These conditions can cause antibodies to be produced that cross-react with the antigens used in the non-treponemal tests, leading to a false-positive result.

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  • 28. 

    74.តើលទ្ធផលតេស្តASO នឹង FRខ្នាតគិតជាអី្វ?

    • G/dL

    • Mg/mL

    • UI/mL

    • Cell/ul

    Correct Answer
    A. UI/mL
  • 29. 

    ការកំណត់ បើសិនអ្នកជំងឺមានមេរោគរលាកថ្លើមសេអ្នកគួរចាប់ផ្ដើមធ្វើតេស្ដសំរាប់(To determine if a patient has HCV, you could start with tests for:)

    • ALT and anti-HCV

    • Anti-HIV

    • Anti-HBc

    • HBs Ag

    Correct Answer
    A. ALT and anti-HCV
    Explanation
    ALT and anti-HCV are the appropriate tests to determine if a patient has HCV. ALT (Alanine aminotransferase) is an enzyme found in the liver, and elevated levels of ALT in the blood may indicate liver damage, which can be caused by HCV infection. Anti-HCV refers to antibodies against the hepatitis C virus, and the presence of these antibodies in the blood indicates a current or past HCV infection. Therefore, by testing for both ALT and anti-HCV, healthcare professionals can assess liver function and detect the presence of HCV in a patient.

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  • 30. 

    34 . លក្ខណះនៃការបង្ករជំងឺស្វាយដោយមេរោគTreponema Palidum ទាំងអស់លើកលែងតែ(Characteristics of the causative agent of syphilis, Treponema Pallidum, includesall EXCEPT :)

    • ជាគ្រួសាររបស់Spirochaetaceae

    • មិនមានកន្លែងស្នាក់ធម្មជាតិនៅក្នុងបរិយាកាស(Has no natural reservoir in theenvironment)

    • បង្ករកំណើតនៅនឹងម្ចាស់(Multiplies within the living host)

    • មិនមានPhospholipidsនៅនឹងសំបកក្រៅ( no phospholipids in its outer membrane)

    Correct Answer
    A. មិនមានPhospholipidsនៅនឹងសំបកក្រៅ( no phospholipids in its outer membrane)
    Explanation
    The correct answer is that Treponema Pallidum does not have phospholipids in its outer membrane. Phospholipids are a major component of the cell membrane in most bacteria, but Treponema Pallidum lacks them. This characteristic makes it unique compared to other bacteria.

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  • 31. 

    39. តើមួយណាខាងក្រោមត្រឹមត្រូវសំរាប់Reagin? (Which of the following is true of reagin?)

    • វាអាចរកឃើញគ្រប់អ្នកជំងឺនៅដំណាក់កាលទីមួយនៃជំងឺស្វាយ

    • រកAbប្រឆាំងផ្ទាល់ទៅនឹងកំទេចកំទីកោសិកាខូចដោយសារមេរោគស្វាយ

    • Reagent Testsនៅវិជ្ជមានបន្ទាប់ពីព្យាបាលបានជោគជ័យក្រោយមួយឆ្នាំ

    • វារកឃើញនៅលើតែអ្នកជំងឺស្វាយប៉ុណ្ណោះ

    Correct Answer
    A. រកAbប្រឆាំងផ្ទាល់ទៅនឹងកំទេចកំទីកោសិកាខូចដោយសារមេរោគស្វាយ
    Explanation
    Reagin is a type of antibody that is produced in response to the presence of syphilis bacteria in the body. It is used in reagent tests to detect the presence of syphilis antibodies in a person's blood. This answer states that reagin can be found in individuals with active syphilis infection, as it reacts with the specific antigen produced by the syphilis bacteria.

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  • 32. 

    75.តើលទ្ធផលតេស្ត Flow Cytometry (CD4) ខ្នាតគិតជាអី្វ?

    • Mg/mL

    • UI/mL

    • Pos/Neg

    • Cell/ul

    Correct Answer
    A. Cell/ul
    Explanation
    The correct answer is "Cell/ul". This is because Flow Cytometry (CD4) is a method used to measure the number of CD4 cells in a given sample. The result is typically reported as the number of CD4 cells per microliter of blood (Cell/ul).

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  • 33. 

    ១៩. តើវត្ថុវិភាគណាខ្លះដែលគេណែនាំអោយប្រើសំរាប់វិភាគជាមួយនឹងតេស្តប្រភេទ Rapid testsឬ Lateral flow បាន?

    • ទឹកខួរឆ្អឹងខ្នង (CSF)

    • សេរ៉ូមឈាម

    • ឈាមស្រស់ (Whold blood)

    • សេរ៉ូម ផ្លាស្មា និងឈាមស្រស់

    Correct Answer
    A. សេរ៉ូម ផ្លាស្មា និងឈាមស្រស់
  • 34. 

    50. តើតេស្តប្រភេទណាខាងក្រោមនេះ​មានលក្ខណះជាក់លាក់ខ្លាំងសំរាប់ការរោគវិនិច្ឆ័យរក​Ab នៃមេរោគអេដស៏?

    • Serodia

    • Wester Blot Tests

    • PCR quantitative tests

    • PCR qualitative test

    Correct Answer
    A. Wester Blot Tests
    Explanation
    Western Blot Tests are known for their high sensitivity in detecting specific antibodies, making them effective in diagnosing diseases caused by Ab (antibodies) such as HIV, Lyme disease, and certain types of cancer. This test involves separating proteins by size using gel electrophoresis and then transferring them to a membrane for antibody detection. The strong binding affinity of antibodies in Western Blot Tests makes them highly reliable for identifying specific antibodies in a sample.

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  • 35. 

    43.​ការសំយោគត្រឡប់ Reverse transcriptase នៃវីរុស HIV គឺ:  (The reverse transcriptase Of HIV):

    • Transcribes viral DNA to cell DNA

    • Transcribes viral RNA to DNA

    • Transcribes cellular DNA to viral RNA

    • Is attached to the viral DNA

    Correct Answer
    A. Transcribes viral RNA to DNA
    Explanation
    Reverse transcriptase is an enzyme that catalyzes the synthesis of DNA from an RNA template. In the case of HIV, the reverse transcriptase enzyme allows the virus to convert its RNA genome into DNA, which can then be integrated into the host cell's DNA. This process is essential for the replication of the virus and its ability to persist in the host's cells. Therefore, the correct answer is "Transcribes viral RNA to DNA."

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  • 36. 

    76.តើលទ្ធផលតេស្តរាប់មេរោគអេដស៏(HIV Viral load) ខ្នាតគិតជាអ្វី?

    • Mg/Ml

    • Copy/mL

    • Pos/Neg

    • Cell/uL

    Correct Answer
    A. Copy/mL
    Explanation
    The correct answer for the question is "Copy/mL". This is because HIV viral load is measured by counting the number of viral copies per milliliter of blood. This measurement helps to determine the amount of HIV in a person's bloodstream and is used to monitor the progression of the infection and the effectiveness of antiretroviral therapy.

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  • 37. 

    50តើតេស្តប្រភេទណាខាងក្រោមនេះ មានលក្ខណះជាក់លាក់ខាំ្លងសំរាប់ការធ្វើរោគវិនិច្ឆ័យរកAbនៃមេរោគអេដស៏?

    • Serodia Test

    • Wester Blot test

    • PCR quantitative test

    • PCR qualitative test

    Correct Answer
    A. Wester Blot test
    Explanation
    The Western Blot test is the correct answer because it is a highly sensitive and specific test used to detect specific proteins in a sample. It is commonly used in medical and research settings to confirm the presence of antibodies against certain diseases, including HIV. The test involves separating proteins based on their size using gel electrophoresis, transferring them to a membrane, and then using specific antibodies to detect the target protein. This test is particularly useful for detecting antibodies against HIV, as it can accurately differentiate between false positives and true positives.

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  • 38. 

    ១៥. តេស្ត ASO (Anti-Striptolysis O) ដោយប្រើប្រតិកររបស់ Biotech វិភាគលទ្ធផលបង្ហាញថាប្រតិកម្ម ទៅនឹងពង្រាវ ១/៨ តើលទ្ធផលខាងក្រោមនេះមួយណាដែលត្រឹមត្រូវ?

    • 48 mg/mL

    • 64 IU/mL

    • 128 IU/mL

    • 1600 IU/mL

    Correct Answer
    A. 1600 IU/mL
    Explanation
    The correct answer is 1600 IU/mL. This is because the question states that the ASO test result using Biotech's reagent shows a correlation of 1/8 with the titer. This means that the titer is 8 times higher than the result obtained from the ASO test. Therefore, to find the titer, we need to multiply the ASO test result by 8. In this case, the ASO test result is 200 IU/mL (1600/8), which is equal to 1600 IU/mL.

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  • 39. 

    ១៨.​ តើវត្ថុវិភាគណាខ្លះដែលគេណែនាំអោយប្រើសំរាប់ធ្វើវិភាគជាមួយនឹងតេស្តប្រភេទ Serodia?

    • ទឹកខួរឆ្អឹងខ្នង (CSF)

    • សេរ៉ូម (Serum)

    • ឈាមស្រស់ (Whold blood)

    • ផ្លាស្មា និងសេរ៉ូំម ឈាម (Plasma and serum)

    Correct Answer
    A. ផ្លាស្មា និងសេរ៉ូំម ឈាម (Plasma and serum)
    Explanation
    The question is asking which body fluid is commonly used for serological testing using the Serodia method. The correct answer is "Plasma and serum." Serodia is a serological test that detects antibodies in the blood. Both plasma and serum can be used for this type of testing as they contain antibodies. Plasma is the liquid portion of blood that is obtained when blood is anticoagulated, while serum is the liquid portion of blood obtained after coagulation. Both plasma and serum are commonly used in serological testing as they contain the necessary antibodies for detection.

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  • 40. 

    60. លក្ខណះខាងក្រោមនេះជានិយមន័យនៃagglutination ផ្ទាល់: ( the following is charateristic of the definition off direct agglutiation )

    • Ag ដែលមាននៅលើ Red Cells ស្រោបហើយប្រតិកម្មនឺងAb

    • ត្រូវការAgភ្ជាប់ទៅនឹងLatex particle

    • ប្រើAbភ្ជាប់ទៅនឹងgalactine particle

    • ប្រើAg ជាពិសេសភ្ជាប់ទៅនឹងគ្រាប់ឈាមក្រហម

    Correct Answer
    A. Ag ដែលមាននៅលើ Red Cells ស្រោបហើយប្រតិកម្មនឺងAb
    Explanation
    The characteristic of direct agglutination is the presence of Ag (antigen) on Red Cells and the interaction with Ab (antibody). In this process, the Ag needs to be connected to a latex particle, while the Ab is connected to a galactine particle. Additionally, Ag can also be connected to various types of red blood cells.

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  • 41. 

    47.រយះពេលចំហរគឺជា(A window period is the )

    • អំឡុងពេលរវាងការឆ្លងរហូតដល់ពេលធ្វើតេស្ត Anតិ-HIV វិជ្ជមាន

    • អំឡុងពេលរវាងវិជ្ជាមាន Anti-HIVតេស្ត នឹងជំងឺអេដស៏

    • រយះពេលរវាងការឆ្លង រហូតដល់មានរោគសញ្ញាគ្លីនិកនៃជំងឺអេដស៏

    • អំឡុងពេលរវាងបូមឈាន និង ចេញលទ្ធផល

    Correct Answer
    A. អំឡុងពេលរវាងការឆ្លងរហូតដល់ពេលធ្វើតេស្ត Anតិ-HIV វិជ្ជមាន
  • 42. 

    ៩. ខាងក្រោមនេះជាប្រភេទបច្ចេកទេសដែលប្រើការភ្ជាប់ប្រតិករ (Ab)ទៅនឹង Enzyme ឬFluorescence Dye ឬ Radioactive isotope, លើកលែងតែ៖

    • Radio immunoassay

    • Enzyme Immunoassays

    • Immunofixation

    • Immuno-fluorescence

    Correct Answer
    A. Immunofixation
    Explanation
    Immunofixation is the correct answer because it is a type of immunoassay that uses the binding of antibodies to specific antigens to detect and identify proteins. It involves the use of antibodies labeled with fluorescent dyes or radioactive isotopes to visualize the protein-antibody complexes. This technique is commonly used in clinical laboratories to diagnose and monitor various diseases, such as multiple myeloma and other immunoglobulin disorders.

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  • 43. 

    53. តើសមាសធាតុមួយណានៅក្នុងតេស្ត​ELISA ដែលប្រើសំរាប់បញ្ឈប់ប្រតិកម្មបំឡែងនៃEnzyme របស់វាគឺ

    • Conjugate

    • Buffered solution

    • Acid solution

    • Substrate

    Correct Answer
    A. Acid solution
    Explanation
    The correct answer is "Acid solution". In ELISA, the acid solution is used to stop the enzyme reaction and terminate the assay. This is done by changing the pH of the solution, which inactivates the enzyme and prevents further substrate conversion. By adding an acid solution, the enzyme activity is effectively stopped, allowing for accurate measurement of the reaction.

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  • 44. 

    37. តើខាងក្រោមនេះមួយណាជាតេស្តដែលមិនមានលក្ខណះជាក់លាក់ទៅនឹងមេរោគស្វាយ?

    • RPR និង TPPA

    • TPPA និង TPHA

    • VDRL និង RPR

    • TPHA និង VDRL

    Correct Answer
    A. VDRL និង RPR
    Explanation
    The correct answer is VDRL and RPR. This is because VDRL (Venereal Disease Research Laboratory) and RPR (Rapid Plasma Reagin) are both blood tests used to detect syphilis, a sexually transmitted infection. They are screening tests that look for antibodies produced by the body in response to the infection. TPHA (Treponema pallidum hemagglutination assay) is another blood test used to confirm a positive result from VDRL or RPR. TPPA (Treponema pallidum particle agglutination assay) is also a confirmatory test for syphilis. Therefore, the combination of VDRL and RPR is the correct answer as they are both screening tests for syphilis.

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  • 45. 

    77.តើរូបមន្តអី្វដែលគេប្រើសំរាប់តេស្តរហ័ស(Rapid test or Lateral flow ?

    • Agglutination test

    • Enzyme Linkimunosobern Assay

    • Immunochromatographic

    • Polymerase Chain Reaction

    Correct Answer
    A. Immunochromatographic
    Explanation
    The correct answer is immunochromatographic because it is a type of rapid test or lateral flow test commonly used for diagnosing diseases or conditions. This test involves the use of specific antibodies that are immobilized on a membrane. When a sample containing the target antigen is applied to the test strip, it migrates along the strip and binds to the immobilized antibodies. This binding reaction produces a visible colored line, indicating a positive result. Immunochromatographic tests are known for their simplicity, speed, and ease of use, making them suitable for point-of-care testing.

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  • 46. 

    59. តើការរាប់មេរោគអេដស៏​(HIV Viral Load) សំរាប់តាមដានការព្យាបាលគេប្រើនូវបច្ចេកទេសអ្វី?

    • PCR Qualitative

    • PCR Quantitative

    • Chemiluminescent assay

    • Fluorescence –activated

    Correct Answer
    A. PCR Quantitative
    Explanation
    PCR Quantitative is used to measure the amount of HIV viral load in a person's blood. This test detects and quantifies the genetic material (RNA) of the virus in the blood sample. It is a highly sensitive and specific test that can provide important information about the level of viral replication and the effectiveness of antiretroviral therapy. This information helps healthcare providers monitor the progression of the disease and make informed decisions regarding treatment options.

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  • 47. 

    30. តើបច្ចេកទេសតេស្តមួយណាដែលជាទូទៅប្រើសំរាប់ធ្វើរោគវិនិច្ជ័យនៅដំណាក់កាលដំបូងនៃការឆ្លងមេរោគថ្លើម?(Which of the laboratory technique are commonly used fordiagnostic of hepatitis for early stage of infection?)

    • Fluorescent tests

    • Immunochromatographic tests

    • Molecular diagnostic (PCR)

    • Agglutination tests

    • Chemilumination assay

    Correct Answer
    A. Molecular diagnostic (PCR)
    Explanation
    Molecular diagnostic (PCR) is commonly used for the early stage diagnosis of hepatitis. PCR stands for Polymerase Chain Reaction, which is a technique used to amplify and detect specific DNA sequences. In the case of hepatitis, PCR can detect the presence of viral DNA or RNA in the blood, even at very low levels. This makes PCR a highly sensitive and specific method for early detection of hepatitis infections. Other techniques like fluorescent tests, immunochromatographic tests, agglutination tests, and chemilumination assays may also be used for hepatitis diagnosis, but PCR is specifically mentioned as the commonly used technique for early stage detection.

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  • 48. 

    តើតេស្តHepatitis Bអ្វីដែលរកឃើញវិជ្ជមាននៅដំណាក់កាលចាប់ផ្ដើមឆ្លងស្រួចស្រាវ?What hepatitis B markers are detected in early acute infection?

    • HBs-Ag និង Anti-HBs

    • HBe-Ag និង Anti-HBs

    • HBs-Ag និង IgM anti-HBc

    • HBc-Ag និង Anti-HBe

    Correct Answer
    A. HBs-Ag និង IgM anti-HBc
    Explanation
    In early acute infection of Hepatitis B, the markers HBs-Ag (Hepatitis B surface antigen) and IgM anti-HBc (IgM antibody to Hepatitis B core antigen) are detected. HBs-Ag is a protein on the surface of the Hepatitis B virus, and its presence indicates active infection. IgM anti-HBc is an antibody produced in response to the core antigen of the virus, and its presence indicates recent infection. The other options listed do not include both HBs-Ag and IgM anti-HBc, which are the markers typically detected in early acute infection.

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  • 49. 

    49.នៅក្នុងELISA តេស្តHIV-1 និងHIV-2 តើអ្វីដែលភ្ជាប់នៅបាតរន្ធនៃ Plate តេស្ត​ សំរាប់រកAbនៅក្នុងឈាមអ្នកជំងឺ? (In an ELISA assay for HIV-1 &HIV 2 what is attached to the side of the test wells to detect patient antibodies ?

    • HIV-1 Ab & HIV -1Ab

    • HIV-1Ag & HIV-2 Ab

    • HIV-1Ag & HIV-2 Ag

    • HIV-1 Ab & HIV -2 Ag

    Correct Answer
    A. HIV-1Ag & HIV-2 Ag
    Explanation
    In an ELISA assay for HIV-1 and HIV-2, HIV-1 antigen (HIV-1Ag) and HIV-2 antigen (HIV-2 Ag) are attached to the side of the test wells to detect patient antibodies. Antigens are used in ELISA assays to bind specifically to antibodies present in the patient's sample. In this case, both HIV-1 and HIV-2 antigens are used to ensure that antibodies against both types of viruses can be detected.

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