Arterial blood gas measurement

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Arterial blood gas measurement

• Dr .Aya Abdel Dayem

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Acid base balance

• Normal PH 7.35-7.45
• ?A PH lt7.35 acidosis
• A PHgt7.45 alkalosis

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Arterial blood gas measurement

• 1- Pao213 kpa
• PaCO25 kpa
• PH7.39
• a) Identify ABG
• b) Diagnosis normal

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Arterial blood gas measurement

• 2- Pao28 kpa
• PaCO210 kpa
• PH7.22
• Identify ABG
• Diagnosis Type II respiratory failure
•  

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Arterial blood gas measurement

• 3- Pao26kpa
• PaCO24kpa
• PH7. 30
• Identify ABG
• Diagnosis Type I respiratory failure

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Arterial blood gas measurement

• 4-Pao215 kpa
• PaCO23 kpa
• PH7.47
• Identify ABG
• Diagnosis Psychogenic hyperventilation

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Spirometry

• It measures changes in lung volume by recording
  changes in the volume of air exchanged through
  the air way opening.
• Forced expiratory volume in 1 s (FEV)
• Forced vital capacity (FVC)
• FEVI/FVC 75

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Spirometry

• Obstructive defect
• FEV1is reduced more than the FVC
• The FEV/FVC is lt75
• Asthma
• COPD
• Bronchiectasis
• Cystic fibrosis

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Spirometry

• Restrictive defect
• FVC reduced
• The FEV /FVC ratio is normal.
• Sarcoidosis
• Pneumoconiosis
• Obesity
• Connective tissue disease
• Pleural effusion

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Chest X ray

• Pleural effusion
• Collapse
• COPD
• Pneumothorax

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• Thank you