Final answer:
An effective statement by a patient about montelukast [Singulair] would show understanding of its daily, preventive usage and timing, indicating the nurse's teaching was effective.
Step-by-step explanation:
If a patient indicates that they understand the instruction on the medication montelukast [Singulair], their statement might reflect the proper usage and expected effects of the drug. An example of an effective statement might be, "I will take montelukast every day in the evening as it may help to prevent the symptoms of my asthma and allergy rather than stopping an asthma attack that has already started." This shows the patient understands the preventive nature of the medication and the correct timing of its administration.