A 42-year-old East Asian man was admitted to the hospital complaining of recurrent jaundice over the past 4 months. Additional tests would include bilirubin testing, liver function tests, and a gene variant test. A diagnosis of Gilbert's syndrome would be given, which is a harmless liver condition caused by a genetic mutation that prevents the liver from properly processing bilirubin. Gilbert's syndrome is inherited and affects 3-7% of Americans, requiring no treatment.