1:100 1:1000 1:10,000 1:100,000 1 ml 1 ml 1 ml 1 ml 1:100 (10-) 1:1000 (10-) 1:10,000 (104) 1:100,000 (10-8) that appears to have between 30 and 300 colonies. Count the exact number of colonies a the colonK Counter

3-2-1 Code It
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Author:GREEN
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Chapter5: Icd-10-cm And Icd-10-pcs Hospital Inpatient Coding
Section: Chapter Questions
Problem 11MC
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1 ml
1 ml
1 ml
1 ml
1 ml
Original
inoculum
9 ml broth
in each tube
Dilutions
1:10
1:100
1:1000
1:10,000
1:100,000
1 ml
1 ml
1 ml
1 ml
1 ml
Plating
1:100,000
(10-5)
1:10
1:100
1:1000
(10-2)
1:10,000
(104)
(10-1)
(10-9)
1.Choose a plate that appears to have between 30 and 300 colonies. Count the exact number of colonies
on that plate using the colony counter.
Colony Count = 64
2. Calculate the number of CFUS per ml of original sample as follows:
number of CFUS per ml of sample = (number of colonies) X (dilution factor of the plate counted)
= The number of colonies
= The dilution factor of plate counted
= The number of CFUS per ml
Transcribed Image Text:1 ml 1 ml 1 ml 1 ml 1 ml Original inoculum 9 ml broth in each tube Dilutions 1:10 1:100 1:1000 1:10,000 1:100,000 1 ml 1 ml 1 ml 1 ml 1 ml Plating 1:100,000 (10-5) 1:10 1:100 1:1000 (10-2) 1:10,000 (104) (10-1) (10-9) 1.Choose a plate that appears to have between 30 and 300 colonies. Count the exact number of colonies on that plate using the colony counter. Colony Count = 64 2. Calculate the number of CFUS per ml of original sample as follows: number of CFUS per ml of sample = (number of colonies) X (dilution factor of the plate counted) = The number of colonies = The dilution factor of plate counted = The number of CFUS per ml
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