Lucas's unwashed, dirty hand produces 947 CFU when swabbed onto a nutrient agar plate, while his alcohol-sanitized and air-dried hand produces 23 CFU on a swabbed agar plate. Calculate the change in CFU growth between Lucas's two skin-washing treatments, and convert it to percentage CHANGE (delta). What is the PERCENTAGE CHANGE (NOT % reduction!) in CFU ("%delta-CFU" or "%ACFU" = start with [CFUwashed - CFUunwashed)? (Bonus question for your notes: Is this an effective handwashing method?) O 76.9% O -76.9% O 97.6% O -97.6% O 92.4% O -92.4%
Lucas's unwashed, dirty hand produces 947 CFU when swabbed onto a nutrient agar plate, while his alcohol-sanitized and air-dried hand produces 23 CFU on a swabbed agar plate. Calculate the change in CFU growth between Lucas's two skin-washing treatments, and convert it to percentage CHANGE (delta). What is the PERCENTAGE CHANGE (NOT % reduction!) in CFU ("%delta-CFU" or "%ACFU" = start with [CFUwashed - CFUunwashed)? (Bonus question for your notes: Is this an effective handwashing method?) O 76.9% O -76.9% O 97.6% O -97.6% O 92.4% O -92.4%
Chapter10: Reconstitution Of Powdered Drugs
Section: Chapter Questions
Problem 7.2P
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![Lucas's unwashed, dirty hand produces 947 CFU when swabbed onto a nutrient agar plate, while his alcohol-sanitized and air-dried hand produces 23 CFU on
a swabbed agar plate. Calculate the change in CFU growth between Lucas's two skin-washing treatments, and convert it to percentage CHANGE (delta). What
is the PERCENTAGE CHANGE (NOT % reduction!) in CFU ("%delta-CFU" or "%ACFU" = start with [CFUwashed - CFUunwashed])?
(Bonus question for your notes: Is this an effective handwashing method?)
O 76.9%
O -76.9%
O 97.6%
-97.6%
92.4%
-92.4%](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fccc4908a-ff27-4156-943f-bb76251740f8%2F199a876c-e508-4603-8e42-c84eee5e30d4%2F3tvwiv_processed.png&w=3840&q=75)
Transcribed Image Text:Lucas's unwashed, dirty hand produces 947 CFU when swabbed onto a nutrient agar plate, while his alcohol-sanitized and air-dried hand produces 23 CFU on
a swabbed agar plate. Calculate the change in CFU growth between Lucas's two skin-washing treatments, and convert it to percentage CHANGE (delta). What
is the PERCENTAGE CHANGE (NOT % reduction!) in CFU ("%delta-CFU" or "%ACFU" = start with [CFUwashed - CFUunwashed])?
(Bonus question for your notes: Is this an effective handwashing method?)
O 76.9%
O -76.9%
O 97.6%
-97.6%
92.4%
-92.4%
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