MINNEAPOLIS (AP) — A Litchfield woman accused of trying to smother her infant son by pinching his nose shut has pleaded guilty to domestic assault by strangulation.

Twenty-four-year-old Katie Elaine Lewis wiped away tears as she entered her plea Friday. She's scheduled to be sentenced Feb. 20.

Defense attorney Michael Davis says he'll recommend a psychological evaluation for his client. He also says sentencing guidelines call for a stayed prison sentence of one year and one day.

Prosecutors say Lewis brought her 5-month-old to a hospital in May, telling hospital staff he would stop breathing, turn blue and pass out. Doctors couldn't find anything wrong with him.

The criminal complaint says hospital surveillance video later showed her pinching the boy's nose and covering his mouth, causing him to kick frantically before going limp.

Copyright 2012 The Associated Press.