Flashcards in Exam 1 Deck (614)
What key components of CVP management of known?
- normal physiology
What key components of CVP management of applied?
What key components of CVP management of managed?
-primary and secondary prevention
-inpatient and outpatient
What is primary prevention?
directly addressing the disease
What is secondary prevention?
preventing further complications
threat to oxgyen transport =
threat to life
what are three steps of oxygen transport?
1. oxgyen delivery
2. oxygen consumption
3. oxygen extraction ratio
oxygen delivery DO2 =
arterial O2 x cardiac output
(arterial O2 - venous O2) x cardiac outpu
oxygen extraction ratio (OER) =
consumption / delivery
what is the utilization coefficient?
~23% at rest
What may cause VO2 to fall short of demant?
if severe cardiopulmonary dysfunction exists
what kind of biological work requires continuous oxygen supply?
What is DO2 normally based on?
demands of tissues
At rest, DO2 is ______ greater than actual demand
What does the 3-4x greater DO2 allow for?
creation of reserve
98% O2 transported in combination with _______________.
What are determinants of hemoglobin's affinity for O2?
temperature and oxygen
What 3 structures are involved in oxgyen delivery / gas exchanges?
3. tissue cells
Balance b/n intravascular and _________________ fluid volume is important.
If imbalance occurs, what happens?
electrolytes are impacted wich can impact oragn function
What can cause imbalances in the mechanism for delivery?
too much H20
not enougth H2O
too much Na+
not enougth Na+
What impacts delivery of oxygen from outside air to tissues?
1. atmospheric air
2. air quality
How does air quality interfere with repiratory tract filtering?
poor air quality leads to inflammation of alveolar capillary
In dry ENs:
loss of mucus covering, erosion and infection
In alveoli, inspired air saturated w/
What are the first 3 steps of oxygens transport?
1. inpired oxygen and quality of air
3. lungs & chest wall
What are steps 4-6 of oxygen transport?
6. myocardial function
What are steps 7-9 of oxygen transport?
7. peripheral circulation
8. tisue extraction & utilization of oxygen
9. return of partially (de)saturated blood & CO2 to lungs