7. Calcium carbonate in tetrathionate broth is a) a source of carbon for growth b) a buffer c) a source of calcium d) all of the above e) none of the above 8. Yellow butt and red slant in TSI agar means that a) the butt has a high pH while the slant has low pH b) the butt has low pH while the slant has a neutral pH c) the butt is acidic and the slant is alkaline d) none of the above 9. The pink or purple color in urea medium is due to a) acid production due to the hydrolysis of urea b) due to the production of NH3 an acidic product c) formation of basic compound d) a and b e) none of the above 10. Example of pre-enrichment medium a) lactose broth b) selenite cystine broth c) brilliant green lactose bile broth d) a and b e) all of the above

7. Calcium carbonate in tetrathionate broth is a) a source of carbon for growth b) a buffer c) a source of calcium d) all of the above e) none of the above 8. Yellow butt and red slant in TSI agar means that a) the butt has a high pH while the slant has low pH b) the butt has low pH while the slant has a neutral pH c) the butt is acidic and the slant is alkaline d) none of the above 9. The pink or purple color in urea medium is due to a) acid production due to the hydrolysis of urea b) due to the production of NH3 an acidic product c) formation of basic compound d) a and b e) none of the above 10. Example of pre-enrichment medium a) lactose broth b) selenite cystine broth c) brilliant green lactose bile broth d) a and b e) all of the above

Basic Clinical Laboratory Techniques 6E

6th Edition

ISBN:9781133893943

Author:ESTRIDGE

Publisher:ESTRIDGE

Chapter1: The Clinical Laboratory

Section1.6: General Laboratory Equipment

Problem 20RQ

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