The ER Department at this hospital is severely lacking. Other reviewers have commented on the same department of this hospital. It is terribly unfortunate that West Oahu has only one other viable option (Kaiser Permanente Moanalua).
If you go to the ER for health issues, be sure to get a second opinion from your personal doctor or another qualified physician at another hospital IMMEDIATELY. They might send you home with the common cold or an non-life threatening ailment, even if you have a terminal disease such as cancer or a head bleed, and won't bother to run the appropriate tests to determine what it is you have. Their ER doctors have either no medical training, are undeniably incompetent, or simply have a disregard for human life. Someone very close to me was sent home with a low level illness when the person actually had a curable life threatening disease requiring immediate treatment and whose body continued to deteriorate. I will not go into details but I have never seen poorer facilities than this place and a more unresponsive, inexperienced and completely inept ER team than at this hospital.
If you are looking for third-world medical care, trust these doctors and this facility. If you are looking for anything more, then I would strongly suggest that you go to any other hospital on this island. There is a reason why this hospital is bankrupt and attracts those doctors who couldn't get jobs anywhere else. You'd probably do a better job treating yourself on webmd.com than the physicians at this hospital.