HTN Flashcards
Clinical signs of HTN
Haematuria
Papilloedema and visual problems
Headaches
Nosebleeds
Common causes of HTN
Primary - idiopathic 95% Renal artery stenosis Endocrine - Cushing’s disease/ Conn’s disease/ Phaeochromocytoma/Acromegaly Hyperthyroidism Adult polycystic kidney disorder
Investigations
Observations BP - 24 hr ambulatory Bloods - FBC, U+Es, LFTs, TFTs Urine dipstick - haematuria and Alb: Cr ECG Qrisk
Non pharmological advice
Decrease salt and cholesterol intake Lose weight to health weight Exercise more Reduce alcohol and caffeine consumption Smoking cessation
HTN stages
Stage 1 - 140/90 Stage 2 - 160/100 Stage 3 - 180/120 Malignant: BP > 180/120 + papilloedema and/or retinal haemorrhage
Ambulatory :
Stage 1 - 135/85
Stage 2 - 150/95
HTN stepwise management
Stage 1
- if Afro Caribbean or 55+ yo - CCB
- if not, ACEi/ ARB
Stage 2
- ACEi + CCB
Stage 3
- ACEi+ CCB + thiazide like diuretic
Stage 4:
Add on
- beta blocker
- spironolactone - if plasma K+ < 4.5
Complications of untreated HTN
HF - increased afterload causes LV hypertrophy
IHD and MI - due to arterial damage and increased risk of arteriosclerosis
Retinopathy
CKD
Stroke
Aneurysm
Hypertensive retinopathy sign
Flame haemorrhages + cotton wool spots
BP goal if over 80
<150/90
Contraindications for ACEi
Pregnancy
Impaired renal function
Afro Carribean
Side effects of ACEi
Dry cough
Angioedema
Hyperkalaemia
Side effects of CCBs
Flushing
Ankle swelling
Headache
If 180/120
Admit for special assessment if:
- signs of retinal haemorrhage or papilloedema
- new onset confusion, chest pain, HF or AKI
If not:
- urgent investigations for end organ damage
- if no organ damage - repeat measurement in 7 days