OVERVIEW Goal = to help clear secretions SUMMARY Mucociliary Clearance Optimization physiotherapy: percussion, postural drainage, chest vibration suctioning: PO, NP, ETT continuous rotational therapy: special beds that change patient position (lower rates of pneumonia and atelectasis but doesn’t translate into…
Intrinsic PEEP is also known as autoPEEP or PEEPi. Intrinsic PEEP occurs when the expiratory time is shorter than the time needed to fully deflate the lungs, preventing the lung and chest wall from reaching an elastic equilibrium point
sigmoid shape of the oxy-Hb dissociation curve results from the allosteric interactions of the globin monomers that make up the haemoglobin tetramer as each one binds O2. Multiple factors can affect the affinity of Hb for oxygen, thus causing the curve to shift to the left (increased oxygen affinity) or to the right (decreased O2 affinity)
High Frequency Oscillation Ventilation (HFOV) is an unconventional form of mechanical ventilation that maintains lung recruitment, avoids overdistention, and does not rely on bulk flow for oxygenation and ventilation
OVERVIEW Auto-triggering of the ventilator is inappropriate triggering of ventilation when the patient is not attempting to initiate a breath a type of ventilator-patient dyssynchrony inspiratory triggers have been made more and more sensitive -> minimised extra-work CAUSES Flow distortions…
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