Can they take my blood without my consent?

Blood sits in a different category from breath and urine, both constitutionally and under Florida's statutes. A blood draw is a physical intrusion into the body, and the Supreme Court has held that a warrant is generally required absent an exception.

Florida's implied consent framework addresses blood in narrower circumstances than breath — including situations involving serious bodily injury or death, and situations where breath or urine testing is impractical or impossible.

Worth noting: the refusal statute as amended reaches refusal of a chemical or physical test of breath or urine. Blood is treated differently within that section, which is one reason the analysis shouldn't be assumed to carry over from a breath case.

If blood was drawn in your case, the questions are whether there was a warrant, what exception was relied on if there wasn't, who drew it, and whether the draw and the handling followed the required procedures.