Final answer:
The nurse identifies deficient knowledge when the client undergoing induction therapy for leukemia makes the statement: "I will use warm saline gargle instead of brushing my teeth."
Step-by-step explanation:
The nurse identifies deficient knowledge when the client undergoing induction therapy for leukemia makes the statement: "I will use warm saline gargle instead of brushing my teeth." This statement indicates a lack of understanding about oral hygiene during chemotherapy treatment. Brushing the teeth with a soft-bristled toothbrush and fluoride toothpaste is important to remove bacteria and prevent infection. Using warm saline gargle alone is not sufficient for maintaining oral health. It is essential for the client to continue practicing good oral hygiene during chemotherapy to prevent complications.