Which of the following indicates well-controlled asthma in a patient?

Well-controlled asthma is characterized by infrequent symptoms and minimal limitations on daily activities. The correct answer indicates that asthma symptoms occur once or twice per week, which aligns with the criteria for good asthma management where patients aim to have symptoms less than twice a week. This frequency suggests the asthma is well-managed and that the patient is able to maintain normal activities without being significantly affected by the condition.

In contrast, the other options suggest varying levels of poor asthma control. A FEV1 of 75% predicted indicates a moderate level of impairment, as a well-controlled patient would typically have a higher percentage of their predicted FEV1. Nighttime awakenings occurring about once per week signifies that the asthma is causing enough disruption to sleep, which is a key indicator of uncontrolled asthma. Finally, using short-acting beta-agonists (SABA) every other day suggests reliance on rescue medications for symptom relief, indicating that the asthma is not well-controlled since patients with adequately managed asthma should ideally use these medications infrequently or not at all.