When does the text suggest starting semi-annual blood work targeting liver and kidney function for proactive monitoring?

Answer

By age 8 or 9, even if the dog appears healthy.

To establish meaningful reference points for age-related decline, owners should start semi-annual complete blood counts and comprehensive metabolic panels by age 8 or 9.

When does the text suggest starting semi-annual blood work targeting liver and kidney function for proactive monitoring?
deathDogcausebreedLhasa Apso