A representative of Physicians for Human Rights said Wednesday hunger-striking prisoner Hana Shalabi returned to jail after undergoing medical tests in an Israeli hospital. Amani Al Dayef, who visited Shalabi in the ward, told Voice of Palestine radio she underwent a CT scan, and was facing heart problems and muscle wasting. Shalabi has refused food, minerals and salts for 35 days to protest Israel\'s practice of administrative detention after she was rearrested on Feb. 16 and held without charge. She was freed in October 2011 when Hamas secured the release of more than 1,000 Palestinians in Israeli jails in exchange for a captured Israeli soldier.