Acute respiratory failure means that your lungs have stopped doing their normal function, which is gas exchange. If this happens, you will feel short of breath, tired, and confused. You might look bluish and even go unconscious. This can happen due to many reasons such as trauma to your chest, infection in your lung, chronic lung diseases, pulmonary embolism and neurological diseases. It can also happen due to head trauma and drug or alcohol overdose.

Obstructive sleep apnea

Dyspnea

Tachypnea

Tachycardia

Palpitation

Headache

Sleepiness

Anxiety

Confusion

Tremor

Cyanosis

Seizures

Syncope

Fatigue

Irritability

Urinary Tract Infection

Acute Respiratory Failure