Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_test_4 ( "id" int, "ejection_fraction_ef" int, "systolic_blood_pressure_sbp" int, "active_infection" bool, "heart_disease" bool, "renal_disease" bool, "estimated_glomerular_filtration_rate_egfr" int, "cardiogenic_shock" bool, "diastolic_blood_pressure_dbp" int, "symptomatic_hypotension" bool, "severe_refractory_hypertension" bool, "severe_left_ventricular_dysfunction" bool, "NOUSE" float )

### Question ###
severe refractory hypertension defined as mean sitting systolic blood pressure ( mssbp ) >= 180 mmhg and / or mean sitting diastolic blood pressure ( msdbp ) >= 110 mmhg ) at visit 2.

### Accurate SQL ###

SELECT * FROM table_test_4 WHERE severe_refractory_hypertension = 1 OR (systolic_blood_pressure_sbp >= 180 OR diastolic_blood_pressure_dbp >= 110)