A patient went to a hospital for knee replacement surgery. While in the hospital

Question

A patient went to a hospital for knee replacement surgery. While in the hospital, the patient caught an infection. After testing, the doctors found out that Staphylococcus aureus was the infectious agent. If the patient was initially infected by 10 bacteria, and the test results came back, how many bacteria were there?

At day three, the patient was given an antibiotic, methicillin. When they tested 3 days later, there were only half the number of bacteria.

A patient went to a hospital for knee replacement surgery. While in the hospital, the patient caught an infection. After testing, the doctors found out that Staphylococcus aureus was the infectious agent. If the patient was initially infected by 10 bacteria, and the test results came back, how many bacteria were there? At day three, the patient was given an antibiotic, methicillin. When they tested 3 days later, there were only half the number of bacteria.

Explanation / Answer

Clearly the half-life of the bacterieas after antibiotic treatment is 3 days. But the rest of the question is unclear, like after how many days did the test results came back. And the halflife of bacteria before treatment. Please post the relevant data.

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