ACBT Flashcards
What are the 3 stages of ACBT
Breathing control- diaphragmatic breathing
Thoracic expansion exercises
Huff
Describe breathing control and it’s benefits
In and out through the nose, calm and relaxed. Make hand on abdomen rise up and down, visual feedback
Descrease WOB by optimising diaphragm use
Describe TEE and benefits
Breathe in maximally through nose, hold for 2-3 secs at end inspiration and breathe out slowly - can be purse lip or a sigh.
Increase lung volume, treat collapse, aid VQ match, inc gas exchange by using bases
Describe the huff technique
Breathe out from an open mouth, sharp and fast. It creates dynamic compression at the equal pressure point which moves sputum.
What is the equal pressure point
Equal pressure point is the time when the pleural pressure is equal to the airway pressure, and then the pressure outside the airway is greater which creates the narrowing and compression within the airway
How can equal pressure point be manipulated to proximal sputum
If sputum is in peripheral airway:
Perform the huff from a low lung volume (take a small breath in and long breath out)
Huff to move proximal sputum
Huff from a high lung volume so that the EPP is in the proximal airways by taking a big breath in and then a short sharp breath out.
Indications for ACBT
Post surgery Sputum Atelectasis SOB Low o2 Resp muscle weakness
Contraindications for ACBT
Unable to follow instructions
Unconscious
Bronchospasms- give nebuliser and bronchodilators before
What are the channels of collateral ventilation
Channels of Martin
Channels of lambert
How does decreasing accessory muscle usage help SOB and WOB
Accessory muscles are SCM, scalene and Pec major. These are slow twitch muscles when performing normal function.
In order to be used for respiration they use fast twitch fibres which have high o2 demand and fatigue quickly
