Question

In HIV treatment, a regimen is considered to be failing if a patient’s blood has 400 or more copies of the virus per mL. Give the number of copies per dL using scientific notation. How do I solve?

Answer 1

A simple unit conversion. 100 `mL` are in one `dL`.

`(400v)/(mL) * (10^2mL)/(dL) = (4.0*10^4v)/(dL)`

Where `v` = quantity of viruses per dL.