Table schema:
CREATE TABLE table_20592988_1 (platelet_count VARCHAR, prothrombin_time VARCHAR, partial_thromboplastin_time VARCHAR)

Question: What are the statuses of the platelet counts for the conditions where the prothrombin time and partial thromboblastin time is unaffected? 
SQL: SELECT platelet_count FROM table_20592988_1 WHERE prothrombin_time = "Unaffected" AND partial_thromboplastin_time = "Unaffected"