I'm a new nurse that has been working on medsurg unit for the last 9 months. Mostly with geriatrics. I have been thinking about switching to pediatric nursing, any advice on how to adjust to the different units?

Hi. And good choice to switch to pediatric nursing as it is an area of nursing that is in great need. The best way to adjust is first of all make sure that you refresh on pediatric nursing care and Care Management of PEDs.
Patient to nurse ratio will be obviously a little lower, assessment just a little challenging but not as thorough as geriatric that have a lot of medical history, and you might at times have several sets of eyes looking at you taking care of your patient. Keep in mind growth and development is going to be a focus of your care plan versus comorbidities.
geriatric patients

I did and I LOVE it! You’ll never look back! ❤️❤️