Hi, you inform that your sister's blood pressure is 162/112 mmHg.
It should below 140/90mmHg.
You have to start antihypertensive drugs under suggestion if your doctor.
Beta blocker ,calcium channel blocker,
angiotensin converting enzyme inhibited any of those antihypertensive drug can use.
You have to check your blood sugar level and
kidney function test also.
Do exercise regularly more than 30 minutes.
Try to reduce your weight.
Take law salt in which sodium is less and potassium is high.
Take low fatty oily foods.Eat fress fruits and green vegetables.
Avoid too much fatty food.
Don't take alcohol.
Avoid
smoking.
Check your blood pressure regularly.
Take care.
Thanks.