1. Patient is being maintained on a heparin infusion to
achieve the prescribed ACT range of 180-200 seconds. Over the past 2 hours,
chest tube output has increased significantly, resulting in a decrease in
hemoglobin, necessitating multiple blood transfusions.
2. The ventilator graphic display of a patient with COPD
receiving mechanical ventilation is showing two distinct features: (1) a
pressure-time tracing with spikes and dips that is generally irregular and (2)
a flow-time tracing that does not reach zero flow at end expiration.