Which of the following is NOT a sign of a dry airway?

In the context of evaluating signs of a dry airway, increased airflow is an indication of air passing freely through the respiratory tract, suggesting that the airway is clear and potentially moist. A dry airway typically manifests through various symptoms that indicate a lack of moisture, which can lead to complications.

Atelectasis, which is the collapse of part or all of a lung, can occur due to insufficient moisture in the airways, leading to reduced lung expansion and function. A dry, nonproductive cough commonly arises when the airways are dry, signaling an irritation or inflammation without producing mucus. Thick, dehydrated secretions further indicate dryness, making it more difficult for the airways to clear out mucus and could lead to blockages.

Therefore, increased airflow stands apart from these signs, making it the option that is NOT indicative of a dry airway.