A new chemical disinfectant was tested for activity against Staphylococcus growth. The bacteria were incubated in bacterial growth medium + disinfectant for 24 hours, then one loopful of the mixture was transferred to fresh medium without the disinfectant (subculturing) and incubating the subculture. The initial culture and subcultures were evaluated for growth after incubation. (+ = growth; - = no growth)DilutionInitialSubculture1:2--1:4--1:8-+1:16++1:32++ Based on these results, which of the following statements is true regarding the effectiveness of this disinfectant against this bacterium? The disinfectant is bacteriostatic at 1:4 dilution. The disinfectant is bacteriostatic at 1:2 dilution. The disinfectant is NOT bacteriostatic at any of the dilutions tested. The disinfectant is bacteriostatic at 1:8 dilution. The disinfectant is bacteriostatic at 1:16 dilution.

A disinfectant is a chemical substance or compound that is used to inactivate or destroy the…

Based on these results, which of the following statements is true regarding the effectiveness of this disinfectant against this bacterium? The disinfectant is bacteriostatic at 1:4 dilution. The disinfectant is bacteriostatic at 1:2 dilution. The disinfectant is NOT bacteriostatic at any of the dilutions tested. The disinfectant is bacteriostatic at 1:8 dilution. The disinfectant is bacteriostatic at 1:16 dilution.

Based on these results, which of the following statements is true regarding the effectiveness of this disinfectant against this bacterium? The disinfectant is bacteriostatic at 1:4 dilution. The disinfectant is bacteriostatic at 1:2 dilution. The disinfectant is NOT bacteriostatic at any of the dilutions tested. The disinfectant is bacteriostatic at 1:8 dilution. The disinfectant is bacteriostatic at 1:16 dilution.

Microbiology for Surgical Technologists (MindTap Course List)

2nd Edition

ISBN:9781111306663

Author:Margaret Rodriguez, Paul Price

Publisher:Margaret Rodriguez, Paul Price

Chapter4: The Prokaryotes

Section: Chapter Questions

Problem 1UTM: A surgical technologist working in the Central Sterile Processing Department is asked to run the...

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		The disinfectant is bacteriostatic at 1:4 dilution.
		The disinfectant is bacteriostatic at 1:2 dilution.
		The disinfectant is NOT bacteriostatic at any of the dilutions tested.
		The disinfectant is bacteriostatic at 1:8 dilution.
		The disinfectant is bacteriostatic at 1:16 dilution.

Dilution	Initial	Subculture
1:2	-	-
1:4	-	-
1:8	-	+
1:16	+	+
1:32	+	+