This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Medical, surgical and gynaecological illness complicating pregnancy, Subject name: Gynaecology & Obstetrics
Diagnosis of Gestational hypeension is made if blood pressure is 
Select and explain. 
A. > 130/90 mmHg after 20weeks in previously normotensive patient, B. > 140/90 mmHg after 20weeks in previously normotensive patient, C. > 150/90 mmHg after 20weeks in previously normotensive patient, D. > 160/90 mmHg after 20weeks in previously normotensive patient
B: > 140/90 mmHg after 20weeks in previously normotensive patient
Answer: B: > 140/90 mmHg after 20weeks in previously normotensive patient 
Explanation: Diagnostic Criteria for Pregnancy-Associated HypeensionConditionCriteriaGestational HypeensionBp > 140/90 mmHg after 20weeks in previously normotensive womenPreeclampsiaHypeension andProteinuria orThrombocytopenia Renal Insufficiency cerebral symptoms Pulmonary edemaReference: William&;s Obstetrics; 24th edition; Chapter 40; Hypeensive disorders