Tracheostomy part 2 Flashcards
What can you use to maintain an open stoma
A Trach button
What is used to seal the airway for mechanical ventilation or to prevent or minimize aspiration
Trach cuffs
What two complications are associated with cuff use and its pressure on the tracheal wall
Tracheal stenosis and tracheomalacia
What kind of cuff is mostly used today
High volume low pressure (HVLP)
Cuff pressure greater than what will affect the
lymphatic flow in the trachea
5mmHg
Cuff pressure greater than what will reduce
venous flow
18mmHg
Cuff pressure greater than what will reduce
arterial flow
30mmHg
Higher pressures can cut off the mucosal blood flow
and cause
tissue damage
ALWAYS use the what kind of pressure needed to
obtain a satisfactory seal with a cuff
Lowest pressure
Herniation of the cuff over the lumen
of the tube may happen if what
the cuff is old
Compression of the lumen of the
tube by the cuff may be caused by
over inflation or gradual diffusion of nitric oxide `
What are two cuff inflation methods
- Minimal Leak Technique
- Minimal Occluding Volume
Minimum occluding volume can cause
higher pressures on trachea
Slowly inflate the cuff on the tube until the
airflow heard escaping around the cuff
during a positive pressure breath ceases is what tecnique
Minimum occluding technique
What is the difference between the minimum occluding technique and minimal leak technique
Minimal leak technique is the same but after the airflow escaping ceases you withdraw a small amount of air to create a minimal leak
