P1247676906KbeHV

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Atelectasis
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Boyles Law

• P1V1 P2V2

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Respiratory Distress

• Surfactant
• Respiratory distress syndrome (RDS)
• Acute respiratory distress syndrome (ARDS)

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Respiratory Problems Tests

• Anatomic dead space
• Alveolar/Physiologic dead space
• Obstructive Pulmonary Disease (affect gas flow)
• Chronic bronchitis (asthma)
• Emphysema
• Restrictive Disorders (affect total volume)
• Cystic fibrosis
• Minute ventilation gas moved/min
• FVC
• FEV
• Alveolar vent rate (AVR) accounts for dead space)

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Gas Laws

• Daltons Law of Partial Pressures
• Total pressure exerted by a mixture of gasses
• sum of the pressures exerted independantly by
  each gas in the mixture.
• Partial pressure
• amount of pressure each gas contributes
• Atmospheric changes

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Gas Laws

• Henrys Law
• When a mixture of gasses is in contact with a
  liquid
• Each gas will dissolve in the liquid purportional
  to its partial pressure.

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Other Factors Affecting Hb Sat.

• PCO2
• Temp
• Blood pH (amnt of H ions)
• Amnt. of 2,3-bisphosphoglycerate (BPG)
• Goes up as oxyhemoglobin level drops

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Hypoxia

• Anemic hypoxia
• Ischemic hypoxia
• Histotoxic hypoxia
• Hypoxemic hypoxia
• Carbon Monoxide poisoning
• Clinical terms
• Apnea temp. cessation of breathing
• Dyspnea difficulty breathing
• Tachypnea rapid, shallow breathing

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CO2 Transport

• Dissolved in plasma
• 7-10
• Carbaminohemoglobin
• Bound to globin AAs
• 20
• As bicarbonate (HCO3-) ions
• 70

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Homeostatic Imbalances of the Respiratory System

• Chronic Obstructive Pulmonary Diseases
• Emphysema
• Chronic Bronchitis
• Asthma
• Tuberculosis
• Lung cancer