hypertension

Question 1

why does reduced renal blood flow cause hypertension ?

Answer 1

get excess renin release causing aldosterone release and salt and water retention

Question 2

endocrine disorders causing hypertension?

Answer 2

adrenal gland tumours, conns syndrome (excess aldosterone), cushings syndrome (excess corticosteroid), phaeochromocytoma (excess noradrenaline)

Question 3

congenital narrowing of parts of the aorta ?

Answer 3

coarctation of the aorta can case hypertension

Question 4

what does benign hypertension cause?

Answer 4

left ventricular hypertrophy, congestive heart failure, increases atheroma, increases aneurysm rupture, berry aneurysms, renal disease

Question 5

In hypertension what happens to the microvasculature?

Answer 5

blood vessel wall changes in small arteries and arterioles. In retina and kidney. Get thickening of the media. Get hyaline atherosclerosis (plasma proteins forced into vessel wall)

Question 6

what is malignant hypertension?

Answer 6

Malignant hypertension is extremely high blood pressure that develops rapidly and causes some type of organ damage.

Question 7

malignant hypertension is a diastolic pressure of over?

Answer 7

130-140

Question 8

malignant hypertension needs urgent treatment to prevent death

Answer 8

it is a serious life threatening condition

Question 9

malignant hypertension effect on brain?

Answer 9

causes cerebral oedema (headache and cerebral haemorrhage)

Question 10

what else does malignant hypertension cause>

Answer 10

acute renal failure, acute heart failure, blood vessels show fibrinoid necrosis