A researcher is testing the efficacy of a new antiseptic against Staphylococcus aureus. They inoculate broth tubes containing variou concentrations of the chemical. After incubation, it is observed that there is no growth in the undiluted and 1:4 dilutions of the antiseptic. The 1:8, 1:16 and 1:32 c had bacterial growth. Which of the following would indicate that the antiseptic is bacteriostatic? A zone of inhibition appears at the top of the tubes where growth was originally observed. O Subcultures from the original cultures containing the undiluted chemical and the 1:4 dilution do NOT grow in fresh media. Subcultures from the original cultures containing the 1:8, 1:16, and 1:32 dilutions all show growth in fresh media. O Subcultures from the original cultures containing the undiluted chemical and the 1:4 dilution show growth in fresh media.

Curren'S Math For Meds: Dosages & Sol
11th Edition
ISBN:9781305143531
Author:CURREN
Publisher:CURREN
Chapter10: Reconstitution Of Powdered Drugs
Section: Chapter Questions
Problem 9.5P
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A researcher is testing the efficacy of a new antiseptic against Staphylococcus aureus. They inoculate broth tubes containing various
concentrations of the chemical.
After incubation, it is observed that there is no growth in the undiluted and 1:4 dilutions of the antiseptic. The 1:8, 1:16 and 1:32 dilutions all
had bacterial growth.
Which of the following would indicate that the antiseptic is bacteriostatic?
A zone of inhibition appears at the top of the tubes where growth was originally observed.
Subcultures from the original cultures containing the undiluted chemical and the 1:4 dilution do NOT grow in fresh media.
Subcultures from the original cultures containing the 1:8, 1:16, and 1:32 dilutions all show growth in fresh media.
Subcultures from the original cultures containing the undiluted chemical and the 1:4 dilution show growth in fresh media.
O O
Transcribed Image Text:A researcher is testing the efficacy of a new antiseptic against Staphylococcus aureus. They inoculate broth tubes containing various concentrations of the chemical. After incubation, it is observed that there is no growth in the undiluted and 1:4 dilutions of the antiseptic. The 1:8, 1:16 and 1:32 dilutions all had bacterial growth. Which of the following would indicate that the antiseptic is bacteriostatic? A zone of inhibition appears at the top of the tubes where growth was originally observed. Subcultures from the original cultures containing the undiluted chemical and the 1:4 dilution do NOT grow in fresh media. Subcultures from the original cultures containing the 1:8, 1:16, and 1:32 dilutions all show growth in fresh media. Subcultures from the original cultures containing the undiluted chemical and the 1:4 dilution show growth in fresh media. O O
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