I'm sorry to hear what happened. With proper intensive care, patients have a good chance of surviving such instances. There are drugs that are given to patient's with stroke that can help minimize damage to the remaining parts of the brain. The drug is called citicholine, though this is used in stroke patients and I'm not sure if it well benefit pesticide poisoning patients. Maintaining an adequate blood pressure by itself can minimize brain damage (as long as blood pressure is at or above normal). Unfortunately, there may be no scanning technology that can reliably predict brain damage, not even MRI. I suggest you discuss these options with his doctors. Be strong and be patient, I believe everything will turn out well. Regards and God bless.
It has been 9 days now since the incident happened. My dad is still sedated. CT scans are still normal. How good of an indication a CT scan is at this stage?