Page 88 - MNU PM502 Ph. Micreo practical
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Pharm D- Clinical Pharmacy Program        Third Level          Pharmaceutical Microbiology& Antimicrobials (PM 502)


                                                          LAB 7






                           Determination of MIC by agar diffusion method



                  Practical mission:


                  You are provided with certain antimicrobial agent (4 ml in volume) and required

                  to determine its MIC by agar diffusion method.


                  Equipments:


                  1) 3 empty sterile test tubes.


                  2) 2 sterile pipettes (5 ml and 1 ml).


                  3) 2 sterile Petri dishes.


                  4) Sterile Pasteur pipette.


                  5) Test tube containing sterile saline.


                  6) Test tube containing 4 ml of the initial conc. of the antibiotic (A).


                  7) Flask containing 50 ml of melted agar.


                  8) Wassermann tube containing the test M.O.


                  9) Loop.


                  Steps:


                  I-  Preparation  of  Antibiotic  Dilutions:  (2-fold  serial  dilution  of  the  test

                  antibiotic)






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