Final answer:
Vitamin A should be included in the teaching on increasing dietary intake of micronutrients for a client who has difficulty seeing at night. Vitamin A is essential for good vision, especially night vision.
Step-by-step explanation:
The nurse should include Vitamin A in the teaching on increasing dietary intake of micronutrients for a client who has difficulty seeing at night. Vitamin A is essential for good vision, especially night vision. It helps maintain the health of the retina and is needed for the synthesis of rhodopsin, a pigment in the eye that enables us to see in low light conditions.