Tachypnea refers to which of the following?

Tachypnea is defined as an abnormally rapid breathing rate, typically indicated by a respiratory rate exceeding 20 cycles per minute. This condition can be a response to various physiological or pathological processes happening in the body, such as fever, anxiety, exercise, or respiratory conditions. The correct answer underscores the accepted threshold for tachypnea, which is commonly recognized in both clinical and medical literature, aligning with typical definitions used in practice. Understanding tachypnea is crucial for healthcare professionals as it can be an important sign of underlying health issues that may require further evaluation and intervention.