Examlex
What feature of Ptolemy's model of the universe allowed it to explain retrograde motion?
Chronic
A condition persisting for a long time or constantly recurring, often referring to diseases or health conditions.
Tracheostomy
A surgical procedure to create an opening through the neck into the trachea (windpipe) to allow direct access to the breathing tube.
Nasotracheal Suctioning
A medical procedure to remove secretions from the trachea through the nose to maintain airway patency.
Oxygen Saturation
A measure of the amount of oxygen carried by the red blood cells in the bloodstream, crucial for metabolic processes.
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