Week 1 - Intro to CP + Respiratory Physiology Flashcards
What are the 3 responsibilities of a CP Physiotherapist?
- Respiratory Care
- Prevention
- Maintenance
- Treatment - Exercise Capacity
- Assessment
- Maintenance
- Restoration/Optimisation - Effects of Bed Rest
What are the 4 main components in the Respiration Process?
> Alveolar Ventilation
Gas Exchange 1
Gas from Alveoli –> Capillary
Transport (blood)
Gas Exchange 2
Gas between capillary and tissue
Where can Cardiopulmonary Dysfunction occur during Alveolar Ventilation?
> Central Control
- E.g. injury to the medulla
Respiratory Pump
- E.g. neuromuscular disease
Airways
- E.g. obstruction + flow limitations
Alveoli
- E.g. reduced lung volumes (pneumonia)
What are the Signs and Symptoms of Respiratory Dysfunction?
- SOB
- Cough
- Sputum
- Reduced Exercise Tolerance
- Wheeze
What are the 3 basic elements of the Respiratory Control System?
- Central Controller
- Effectors
- Sensors
What part of the brain is the Central Controller located?
The Brainstem
Describe the role of Effectors for Respiratory Control
Receive info from central controller and cause ventilation to occur
- E.g. Respiratory Muscle Activation
Describe the role of Sensors for Respiratory Control
Gather info and feed it back to the central controlled to allow adjustments
- E.g. Chemoreceptors + Mechanoreceptors
What is the normal PaCO2 for a healthy adult?
PaCO2 = 38-42mmHg
Which compound is the most important controlling ventilation?
CO2
How does ventilation alter when there is an increase in CO2 conc’ and why?
Ventilation (breathing rate) increases to stimulate the removal of excess CO2
How does ventilation alter when there is a decrease in CO2 conc’ and why?
Ventilation (breathing rate) decreases to retain O2 levels
What is the normal 02 for a healthy adult?
Pa02 = 80-100mmHg
