hypertension Flashcards
what is white coat hypertension
spike in BP when it is measured at the doctors
what is masked hypertension
normal BP in the clinic but elevated BP out of clinic
does BP have diurinal variation
yes
when would you prescribe a Ca channel blocker first
> 55
black african or caribbean
effect of high BP on the brain
stroke - causes cerebral haemorrhage
effect of high BP on eyes
impaired vision - hypertensive retinopathy
retinal arterioles may become occluded or leak - oedema, haemorrhages, infarcts, microaneurysms
what is optic neuropathy
oedema of the optic disc - papilloedema
associated with flame haemorrhages
grade IV retinopathy
what is retinal vein thrombosis often followed by
glaucoma - inc intraocular pressure
effect of high BP on kidneys
narrowing and thickening of renal arteries
filter less fluid - nitrogenous waste builds up in the body
effect of inc BP on the atrial tree
internal elastic lamina thickening and SM hypertrophy and fibrosis
smaller arteries show hyaline sclerosis which narrows the lumen
when to suspect 2y hypertension
young patients with acute onset
what is 2y hypertension often due to
history of renal or endocrine cause
what is conn’s syndrome
excess aldosterone
what is cushing’s syndrome
excess corticosteroid
what is phaecromocytoma
excess noradrenaline
what do berry aneurysms cause
subarachnoid haemorrhages
how many measurements per hour must ABPM give
at least 2
how must measurements be taken for HBPM
two consecutive seated measurements, 1 minute apart
BP is recorded twice a day for at least 4 days and preferably for 7 days
what is the target BP for people under 80
140/90
ABPM - 135/85
what is the target BP for people over 80
150/90
ABPM - 145/85
what is the pathological hallmark of accelerated hypertension
accelerated microvascular damage
how does cushing syndrome present
moon face, buffalo hump and proximal weakness
investigation - urine dipstick
haematuria and proteinuria
what would be the most useful investigation in assessing CV risk
fasting lipids
what is seen on ECG
LV hypertrophy