Some of the stuff from the Wikipedia entry Steve quotes below seems to come from ER Stories, which is a blog about "Shocking, Hilarious, Bizarre, and Sad Tales from the Emergency Room."

Here`s their entry on slang—and here are some quotes about the effects of large scale Hispanic immigration on Emergency Rooms:

7. STATUS HISPANICUS - an offensive but often used term (sometime by other Hispanics) describing a hysterical Hispanic patient (traditionally Puerto-Rican or Dominican - almost never Mexican however). Often screaming �Eye yieye yieye yieye� (see Eye- tach below). A spoof of the medical terms �Status Asthmaticus and Status Epilepticus� describing severe, nonstop asthma attacks or seizures. See below OMD below as well. One of the terms I avoid using.

8. OMD - Oh Mi Duele. Means �Oh I have pain!� in Spanish. A take off on EMD which means �electro-mechanical dissociation� - an serious cardiac rhythm disturbance. Used like �She is going into OMD, give her some Morphine�.

9. Eye - tach- A spoof of V-tach which is short for Ventricular Tachycardia, a life-threatening cardiac arrhythmia. Someone goes into Eye-tach from OMD - Eyeyeyeyeyeyeyeyeyeyeyeye.