Wardrobe for Interview

I have an interview at a medical facility tomorrow for a CNA position. I have no idea what to wear. My last interview I did was 5 years for an insurance company. I dressed in formal business attire for that interview. With the ever changing dress codes for companies, I don’t know what is appropriate any more.

I have a black dressy sweater and a pair of blue skinny jeans that I can wear. I unfortunately don’t have any of my nice dress pants that fit after having my youngest.

Opinions?