<p>You can take whatever classes you want in high school and still pursue any of the careers you listed. It is really the college courses that will matter if you want to go to medical school. You can view a detailed discussions here:</p>
<p>[High</a> School Senior Interested in Becoming a Psychiatrist : Medical Education Discussions](<a href=“http://www.medical-education.us/high-school-senior-interested-becoming-psychiatrist-t494.html]High”>http://www.medical-education.us/high-school-senior-interested-becoming-psychiatrist-t494.html)</p>