What is the difference between hypoxic and hypercapnic respiratory failure?
Intensive Care Nephrology
Revise please the abbreviation list on:
Q.429. What is the difference between hypoxic & hypercapnic respiratory failure?
A. Hypoxic Resp. failure c Failure to maintain adequate oxygenation.
Hypercapnic Resp. failure c inadequate ventilation c Co2 retention.
Q.430. What are the possible modes of mechanical ventilation in I.C.U.?
A. Modes of Mch.v.:
I. Volume-cycled: certain “tidal volume” delivered by the ventilator: SIMV (Synchronized Intermittent Mandatory Ventilator) & CMV (Continuous Mandatory Ventilation).
II. Pressure-cycled ventilation: volume is delivered until pre-set maximum pressure is reached = P.C.V. = pressure controlled ventilation.
III. Flow-cycled ventilation : “inspiration” continued until a pre-set flow rate is reached ( P.S.V.) = Pressure Support Ventilation.
CMV: Minimizes the work of breathing done by the ptn., it is used in ptn. é myocardial ischemia or profound hypoxemia, e.g. COPD & tachypnea ptn..