Using Scikit-learn on a csv dataset
Look into the pandas package which allows you to import CSV files into a dataframe. pandas is supported by scikit-learn.
How do I apply scikit-learn to a numpy array with 4 columns each representing a different attribute? 
Basically, I'm wanting to teach it how to recognize a healthy patient from these 4 characteristics and then see if it can identify an abnormal one.
Thanks in advance!