Control of BP

Question 1

Normal adult BP

Answer 1

90/60mmHg - 120/80mmHg

Question 2

BP (clinic) for Stage 1 hypertension

Answer 2

> 140/90mmHg

Question 3

BP (clinic) Stage 2 hypertension

Answer 3

> 160/100 mmHg

Question 4

BP (clinic) for Severe hypertension

Answer 4

> 180 systolic / 110> diastolic

Question 5

Cause for hypertension

Answer 5

Primary hypertension: unknown (95%)

Secondary hypertension:
-renovascular disease
-chronic renal
-hyperaldosteronism
-Cushing’s syndrome

Question 6

Why is it important to treat hypertension

Answer 6

Asymptomatic
-can have unseen effects such as
Heart failure, MI, stroke, renal failure, retinopathy

Question 7

How is BP regulated

Answer 7

Short and long term regulation

Short term:
-baroreceptor reflex

Question 8

Function of baroreceptor reflex

Answer 8

-adjust sympathetic & parasympathetic inputs to the heart to alter cardiac output

-adjust sympathetic input to peripheral resistance vessels to alter TPR

Question 9

Medium & longer term control of BP

Answer 9

-control interaction with
-directed at controlling sodium balance, extracellular olume