Hypertension Flashcards
What is hypertension?
- Raised BP >= 140/90mmHg
* Or 24hr BP average reading of >= 135/85
What is essential hypertension?
No single disease causing the rise in BP
What is secondary hypertension?
Caused by something else
What are the causes of secondary HTN?
Renal disease:
>Glomerulonephritis
>Chronic pyelonephritis
>Adult polycystic kidney disease
Endocrine: >Cushings >Congenital adrenal hyperplasia >Acromegaly >Primary hyeraldosteronism >Phaeochromocytoma
Other: >NSAIDs >Pregnancy >Coartation of the aorta >COCP >Glucocorticoids
What is the presentation of hypertension usually?
Asymptomatic
When would hypertension cause symptoms? What would these be?
- > 200/120mmHg
Symptoms:
- Headaches
- Visual disturbance
- seizures
What investigations should be done following a diagnosis of hypertension?
- U&Es
- HbA1c
- lipids
- ECG
- Urine dip
What is the management of hypertension <55 or Type 2 diabetic?
Step 1 First line:
ACEi / ARB
Step 2:
Add in Ca2+ blocker of thiazide like diuretic
Step 3:
Use all
Step 4:
Consider alpha blocker/beta blocker if K+ 4.5
Consider Spironolactone is K+<4.5
What is the management of hypertension >55 or afro-carribean? No type 2 diabetic
Step 1 First line:
Ca2+ channel blocker
Step 2:
Add in ACEi/ARB or thiazide like diuretic
Step 3:
Use all
Step 4:
Consider alpha blocker/beta blocker if K+ 4.5
Consider Spironolactone is K+<4.5
What is required for a diagnosis of hypertension?
*Ambulatory BP
>2 reading per hour and use average of 14 measures
*Home BP monitor >2 consecutive readings teen 1min apart >BP recorded twice daily >BP recording 4-7days >Average value discard first day readings
What is stage 1 hypertensions?
Clinic BP >= 140/90
Average home reading >135/80
What is stage 2 hypertension?
Clinic BP >=160/100
Average home reading >=150/95
What is severe hypertension?
Clinic BP systolic >=180 or diastolic >=120
What is the management of severe hypertension?
*Admit for specialist assessment
What are blood pressure targets for under 80 years?
140/90 in clinic or
135/85 at home