Schema: CREATE TABLE table_20592988_1 (platelet_count VARCHAR, bleeding_time VARCHAR, partial_thromboplastin_time VARCHAR)
Question: What is the status of platelet counts for conditions where bleeding time is prolonged and partial thromboplastin time is unaffected? 
SQL: SELECT platelet_count FROM table_20592988_1 WHERE bleeding_time = "Prolonged" AND partial_thromboplastin_time = "Unaffected"