Autogenic drainage

Question 1

What is it used for?

Answer 1

chronic patients
secretion clearance
Using benuli principle, air gets behind secretions. Increase velocity of secretions. Fast airflow, creates a negative pressure. Whips secretions off the side of the walls

Question 2

What are the phases?

Answer 2

collecting
mobilising
excreting

Question 3

Collecting

Answer 3

you breathe all the way in and all the way out
and then take a normal breathe, 1 1/2 tidal volume. Starting at a lower lung volume so it should be uncomfortable
do this for 3 breaths

Question 4

Mobilising

Answer 4

breathing at normal TV. 1 ½ times their breath and then breath out.

Question 5

Excreting

Answer 5

deep breath in respiratory reserve, breathe in, hardly take anything out, 1 1/2. Then use huff for secretions. Breathing at a higher volume

Question 6

technique

Answer 6

take a large breath in, hold it for a moment. Breathe all the way out for as long as you can. at low lung volume. See picture below. The size of breath and level at which you breathe depends on where the mucus is located.
Take a small to normal breath in, and pause. Hold your breath for about 3 seconds. All the upper airways should be kept open. This improves the even filling of all lung parts. The pause allows time for the air to get behind the mucus.
Breathe out through the mouth. Keep the upper airways open. This is your glottis, throat and mouth. Breathing out is done in a sighing manner. When you force your breath out the airways can collapse. You will hear a wheeze.
At low lung level breathing use your abdominal muscles. Squeeze all the air out until you can breathe out no more.
You hear the mucus rattling in the airways when breathing the right way. Put a hand on your upper chest, and feel the mucus vibrating. High frequencies mean that the mucus is in the small airways. Low frequencies mean that the mucus is in the large airways. Using this feedback lets you easily adjust the technique.
Repeat the cycle. Inhale slowly to avoid sending the mucus back down. Keep breathing at the low level until the mucus collects and moves upward. Signs of this are:
Crackling of the mucus can be heard as you exhale.
You feel the mucus moving up.
You feel a strong urge to cough.
Finally the collected mucus reaches the large airways where it can be cleared by a high lung volume huff. Don’t cough until the mucus is in the larger airways. Cough only if a huff did not move the mucus to the mouth.
Take a break of one to two minutes. Relax and perform breathing control before you start on the next cycle.