Tachypnoe

Tachypnoe, also known as tachypnea, is a medical condition characterized by abnormally rapid breathing. The term originates from the Greek words "tachys" (swift) and "pnoe" (breathing). It is typically defined as a respiratory rate exceeding the normal range for age and physical condition.

In adults, a respiratory rate above 20 breaths per minute is generally considered tachypnoe. In children, the threshold is higher, with rates above 20-25 breaths per minute in infants and above 24-30 breaths per minute in children.

Common causes include respiratory infections, asthma, pneumonia, heart failure, sepsis, and anxiety. It may also occur as a response to pain, fever, or metabolic acidosis.

Symptoms often include shortness of breath, chest tightness, and increased work of breathing. In severe cases, it can lead to hypoxemia (low blood oxygen levels) and respiratory failure.

Diagnosis is made through physical examination and measurement of respiratory rate. Additional tests may include blood gas analysis, chest X-rays, and other investigations based on suspected underlying causes.

Treatment depends on the underlying cause and may include oxygen therapy, bronchodilators, antibiotics, or other specific interventions. In severe cases, mechanical ventilation may be required.

Complications can include respiratory fatigue, decreased exercise tolerance, and in extreme cases, death if untreated.