Browsing Tag

ventilation

High Flow Nasal Cannula (HFNC)

High flow nasal cannula (HFNC) systems allow us to deliver warm, humidified oxygen at flow rates as high as 60 liters/min through small, pliable nasal prongs. The cannula itself is fit into the nares and stabilized with a head strap. Two…

Interpreting Capnograms

Continuous capnography (measurement of carbon dioxide) is the gold standard for confirming endotracheal tube placement but is also utilized in the operating room and intensive care unit (ICU) to help guide ventilation in conjunction with…

Hyperventilation And The Bohr Effect

Often times we hyperventilate patients in the operating room with the justification that a low PaCO2 will suppress a patient's desire to take spontaneous breaths during surgery (ie, less of a chance the patient will "move"). While there is…

Ventilation and Intubation

One of the most essential skills of airway management is the ability to bag ventilate a patient. This can be a reassuring sign in the event of an otherwise difficult airway and is something to fall back on if intubation is unsuccessful.…

Peak Pressures vs Plateau Pressures

An important aspect of understanding mechanical ventilation is knowing how to interpret peak inspiratory pressures (Ppeak) and plateau pressures (Pplat). What's the difference, and why does it even matter?