ANCHORAGE, Alaska -

A judge is deciding whether to temporarily block the state from implementing new regulations defining what constitutes a "medically necessary" abortion in order to receive Medicaid funding.

Judge John Suddock heard arguments from Planned Parenthood of the Great Northwest and state attorneys on Monday. He said he needed to think about the case and read case law before deciding. He said he could decide as soon as later Monday.

Planned Parenthood has sued the state over the new regulations, and is seeking to have the court block implementation while the lawsuit goes forward. The regulations went into effect Sunday.

Suddock's former law partner has represented Planned Parenthood in the past. He asked both sides if he should remove himself from the case because of that, and neither sought Suddock's removal.