1.Any patient requiring immediate intubation and ventilatory care <br/ >2.Hemodynamic instability BP < 90/60 mm Hg or on inotropic support <br/ >3.Elevated intracranial pressure <br/ >4.Altered sensorium or history of seizures <br/ >5.Any psychiatric comorbidity <br/ >6.Pregnancy <br/ >7.Patients at high risk of requiring CPR or defibrillation (known arrhythmias) <br/ >8.Known chronic cardiopulmonary diseases like Bronchial asthma (with history of wheeze or bronchodilator use), chronic obstructive pulmonary disease, interstitial lung disease (aassessed by Computed Tomography (CT) Chest), congestive heart failure (clinical assessment), and obstructive sleep apnea (assessed with Epworth Sleepiness scale). <br/ >9.Any recent acute condition like pulmonary embolism, acute coronary syndrome, deep vein thrombosis, intestinal obstruction or cerebrovascular accident. <br/ >

1.Any patient requiring immediate intubation and ventilatory care <br/ >2.Hemodynamic instability BP < 90/60 mm Hg or on inotropic support <br/ >3.Elevated intracranial pressure <br/ >4.Altered sensorium or history of seizures <br/ >5.Any psychiatric comorbidity <br/ >6.Pregnancy <br/ >7.Patients at high risk of requiring CPR or defibrillation (known arrhythmias) <br/ >8.Known chronic cardiopulmonary diseases like Bronchial asthma (with history of wheeze or bronchodilator use), chronic obstructive pulmonary disease, interstitial lung disease (aassessed by Computed Tomography (CT) Chest), congestive heart failure (clinical assessment), and obstructive sleep apnea (assessed with Epworth Sleepiness scale). <br/ >9.Any recent acute condition like pulmonary embolism, acute coronary syndrome, deep vein thrombosis, intestinal obstruction or cerebrovascular accident. <br/ >

N/A

N/A

1.Any patient requiring immediate intubation and ventilatory care <br/ >2.Hemodynamic instability BP < 90/60 mm Hg or on inotropic support <br/ >3.Elevated intracranial pressure <br/ >4.Altered sensorium or history of seizures <br/ >5.Any psychiatric comorbidity <br/ >6.Pregnancy <br/ >7.Patients at high risk of requiring CPR or defibrillation (known arrhythmias) <br/ >8.Known chronic cardiopulmonary diseases like Bronchial asthma (with history of wheeze or bronchodilator use), chronic obstructive pulmonary disease, interstitial lung disease (aassessed by Computed Tomography (CT) Chest), congestive heart failure (clinical assessment), and obstructive sleep apnea (assessed with Epworth Sleepiness scale). <br/ >9.Any recent acute condition like pulmonary embolism, acute coronary syndrome, deep vein thrombosis, intestinal obstruction or cerebrovascular accident. <br/ >

1.Any patient requiring immediate intubation and ventilatory care <br/ >2.Hemodynamic instability BP < 90/60 mm Hg or on inotropic support <br/ >3.Elevated intracranial pressure <br/ >4.Altered sensorium or history of seizures <br/ >5.Any psychiatric comorbidity <br/ >6.Pregnancy <br/ >7.Patients at high risk of requiring CPR or defibrillation (known arrhythmias) <br/ >8.Known chronic cardiopulmonary diseases like Bronchial asthma (with history of wheeze or bronchodilator use), chronic obstructive pulmonary disease, interstitial lung disease (aassessed by Computed Tomography (CT) Chest), congestive heart failure (clinical assessment), and obstructive sleep apnea (assessed with Epworth Sleepiness scale). <br/ >9.Any recent acute condition like pulmonary embolism, acute coronary syndrome, deep vein thrombosis, intestinal obstruction or cerebrovascular accident. <br/ >