WASHINGTON — Justice Ruth Bader Ginsburg was released from the hospital Thursday after having a heart stent implanted to clear a blocked artery, a Supreme Court spokeswoman said. The 81-year-old jurist was sent home and was expected to be at work when the court hears its next round of oral arguments on Monday, spokesman Kathy Arberg said. Ginsburg was rushed to MedStar Washington Hospital Center late Tuesday after experiencing discomfort during exercise with a personal trainer. She has had a series of health problems, including colorectal cancer in 1999 and pancreatic cancer in 2009. The justice, who was appointed by President Clinton in 1993, has rejected suggestions from some liberals that she should step down and give President Obama a chance to name her successor. Ginsburg’s procedure came after a blockage was discovered in her right coronary artery, Arberg said. Ginsburg, who leads the court’s liberal wing, has for years been fending off questions about whether she should retire and give a Democratic president a chance to name her successor.