Certified Respiratory Therapist Practice Exam

The "rule of twos" is a guideline used in asthma management to help assess the level of asthma control that a patient is experiencing. Specifically, the phrase indicates that using a rescue inhaler more than two times per week or having nighttime asthma symptoms more than two times per month signifies that the patient's asthma is not well controlled.

When a patient is able to manage their asthma effectively, they should ideally require their rescue inhaler infrequently and experience minimal nocturnal symptoms. Therefore, if either of these occurrences exceeds the specified amounts, it suggests that the asthma management plan may need to be reevaluated, indicating the need for adjustments to treatment. Following this guideline helps healthcare providers identify patients who may be at risk for uncontrolled asthma and allows them to intervene before more serious complications arise.

This rule serves as an important tool for both patients and clinicians to monitor and gauge the effectiveness of asthma management strategies. It emphasizes that good asthma control should ideally be reflected in minimal reliance on rescue medications and rare nighttime symptoms.