I need some help with my diagnosis for a patient who has undergone his fourth cabg, has had four previous mi's, and is now on his third post-op day and still on the vent. he is being kept sedated with diprivan because of agitation and pulling tubes and i am having to up his dosage because of his tolerance level. he currently is on 50mcg/hr. vent settings are on simv and fio2 is at 50. the main reason for the vent at this time is post-op hypoxemia. he is also diabetic and has an insulin drip. htn is also a problem and i am titrating cardene for that. please help!!! i need 15 diagnoses!!