instruction: the subject must have signs of extracellular volume expansion, defined as 2 or more of the following five: signs of rhf ( jugular venous distention, pitting edema ( >= 1+ ) , ascites ) and / or signs of lhf ( pulmonary congestion on chest x ray, pulmonary rales )
response: SELECT * FROM table_test_30 WHERE extracellular_volume_expansion = 1 OR (CASE WHEN jugular_venous_distention = 1 THEN 1 ELSE 0 END + CASE WHEN pitting = 1 THEN 1 ELSE 0 END + CASE WHEN edema = 1 THEN 1 ELSE 0 END + CASE WHEN ascites = 1 THEN 1 ELSE 0 END + CASE WHEN chest_x_ray = 1 THEN 1 ELSE 0 END + CASE WHEN pulmonary_rales = 1 THEN 1 ELSE 0 END) >= 2