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NEET AIPMT SOLVED PAPER SCREENING 2004

  • question_answer
    You are required to draw blood from a patient and to keep it in a test tube for analysis of blood corpuscles and plasma. You are also provided with the following four types of test tubes. Which of them will you not use for the prupose?                                                                                                                                               

    A) Test tube containing calcium bicarbonate            

    B) Chilled test tube

    C)  Test tube containing heparin                                    

    D)  Test tube containing sodium oxalate

    Correct Answer: A

    Solution :

    Clotting of collected blood can be prevented by coating the test tubes with silicon or adding chelating agents. Citrate, oxalate-heparin and EDTA are anti-co agulants.


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