Breath Sounds
Increased rate & depth over prolonged period with no apnea
Kussmaul
The amount of air that moves in and out of the lungs in one quiet breath
Tidal volume
The pressure gradient between the atmosphere and the alveoli is known as the:
Transrespiratory Pressure
What is the opposite of Elastance?
Compliance
What reflex keeps the lungs from over-distending?
Hering-Breuer reflex
Short episodes of rapid, uniformly deep breathing, then apnea
Biot's
Maximum amount of air that the lungs can accommodate is known as the:
Total Lung Capacity
According to Poiseuille's Law, the most influential factor for flow or pressure is:
Radius
If you compliance value is increasing are you getting better or worse?
Better
The basic rhythm of ventilation is controlled by:
Crescendo-Decrescendo type breathing
Cheyne-Stoke's
The volume of air left in the lungs once the forces acting on the lungs balance out at exhalation is called:
Functional residual capacity
The pressure that it takes to get the alveolus to begin to open and expand is known as the:
Critical Opening Pressure
Whose law states that pressure is inversely proportional to volume?
Boyle's
Peripheral chemoreceptors are activated at a PaO2 of less than:
60 mmHg
Decreased alveolar ventilation causing CO2 to increase
Hypoventilation
Given:
RV=1200ml
FRC=2550ml
TLC=5400ml
IRV=2600ml
What is your VC?
4200ml
or 4.2L
A mechanical ventilated patient generates a volume change of 400ml which requires a pressure change of 10cmH20. What is the patient's compliance:
40ml/cmH20 or 0.04L/cmH20
A change in pressure for each change in volume is known as:
Elastance
Transection of the brain stem at what, will cause spontaneous ventilation to stop?
C3-C5
Difficulty Breathing
Dyspnea
Given:
RV=1200ml
FRC=2550ml
TLC=5400ml
IRV=2600ml
What is your Vt?
250ml
What is a normal lung compliance:
0.1L/cmH20
Which law states that if the point is reached where forces exceeds the stretch in the lungs then the patient may develop a tension pneumothorax
Hooke's Law
Peripheral chemoreceptors are known as:
Aortic and Carotid bodies