Had emergency C-section after to much patoeson, made the babys heart stop a couple times, am I at high risk with a second child, b/c of the patoeson?

No. Pitocin (oxytocin) is a normally occurring hormone in pregnancy. It is known to cause contractions and so gynecologists use it to induce labor. It will not alter your risk of birth defects with future children.
No. Taking pit now doesn't increase your problems with future children. The only thing that is different is the c-section decreases the likelihood of future vaginal delivery, but it's possible. Close care with OB is the key.