Pulmonary Vascular & Respiratory Failure

1.An elderly male patient develops painful swelling of his right lower limb after a long flight journey. He was brought to the casualty with sudden onset of breathlessness. Answer the following.  What is the most probable diagnosis.  Discuss the risk factors and clinical features.  How would you investigate this patient.  Discuss the treatment

1.Pulmonary hypertension

1.Acute Pulmonary embolism

1.Types of respiratory failure

2.Radiological diagnosis of pulmonary embolism

3.Radiological features of acute respiratory distress syndrome

4.Causes of ARDS

5.Criteria for ARDS

1.Feature of ARDS is

• a) Pao2/FIO2 ratio of less than 300
• b) Acute onset of hypoxemia of less than one week duration
• c) B/L lung opacities not explained by fluid over load or cardiac failure
• d) All of the above are correct.