Life support
The need for life support contributes to the probability of mortality. If the patient required mechanical ventilation at anytime during hospitalization, enter the actual number of days, with a maximum of 30, that this treatment was provided in the first 30 days of admission. If the patient did not require mechanical ventilation during the heart attack admission, then leave the default value of zero.
Other terms for mechanical ventilation include bear, bird, IMV, MA-I, PEEP, respirator, and servo.
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