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Respiratory Emergencies. Respiratory Failure. A condition that occurs when respiratory system is unable to adequately exchange Oxygen and Carbon Dioxide between environment and tissues of the body. Respiratory Failure. PaO 2 < 60 mmHg PaCO 2 > 50 mmHg.
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Respiratory Failure A condition that occurs when respiratory system is unable to adequately exchange Oxygen and Carbon Dioxide between environment and tissues of the body
Respiratory Failure • PaO2 < 60 mmHg • PaCO2 > 50 mmHg
Types of Respiratory Failure • Type I : Oxygenation Failure (Hypoxemic) • Type II : Ventilation Failure (Hypercapnic)
Asthma Factors Determine Severe Asthma History: - Frequent Attacks - Excessive use of - Bronchodilators - Steroids - Previous admission to ICU
Asthma Physical Examination • Inability to speak • Cyanosis • Respiratory rate >30/mt • Heart Rate >115/mt • Pulsus Paradoxus >10 mmHg • Silent chest
Asthma • Blood Gases • Respiratory acidosis • Hypoxemia (Low PO2) • Hyper carbia (High PCO2)
FVC 100 75 50 25 FEV1 > 75% NORMAL = FVC 0 1 2 3 4 5 6 7 8 TIME
FVC 100 75 50 25 FEV1 Airway Obstruction = FEV1 < 75% FVC 0 1 2 3 4 5 6 7 8 TIME
Asthma Treatment • Oxygen by Mask • Salbutamol (Ventolin) inhaler • Aminophylline I.V • Corticosteroids
Pulmonary Edema Risk Factors: - Smoking - DM - HTN - ↑Lipids - Rheumatic Heart Disease Symptoms: - Shortness of Breath - PND - Orthopnea
Pulmonary Edema Physical Examination: - Gallop Rhythm - ↑JVP - Basal Crakles - Lower Limb Edema Investigations:- CXR,ECG,ECHO Treatment :- Oxygen - Diuretics - Digoxin - After load Reduction.
Pneumothorax • Traumatic • Spontaneous -Tall Thin
Pneumonia History:- Cough - Shortness of Breath - Fever - Sputum Examination: - Dullness - ↑ Vocal fremitus - Bronchial Breathing - Crackles Treatment: - Oxygen - Antibiotics
Pulmonary Embolism Predisposing factors: - Immobilization - Recent surgery - Hyper coagulable state
Acute Respiratory Distress Syndrome Causes: - Aspiration Pneumonia - Near Drowning - Chest Trauma - Severe Pneumonia
Atelectasis Causes: • Foreign body • Endobronchial lesion • Excessive secretions
Respiratory Failure Type II : Ventilation Failure (Hypercapnic)
Respiratory Failure COPD: Causes:- Emphysema - Chr. Bronchitis
FVC 100 75 50 25 FEV1 > 75% NORMAL = FVC 0 1 2 3 4 5 6 7 8 TIME
FVC 100 75 50 25 FEV1 Airway Obstruction = FEV1 < 75% FVC 0 1 2 3 4 5 6 7 8 TIME