HYPERTENSION Flashcards
How do you use ABPM to confirm the diagnosis of HTN?
take at least 2 measurements every hour during the persons waking hours, and use the average of at least 14 measurements
How is HBPM used to confirm the diagnosis of HTN?
For each blood pressure recording, 2 measurements are taken with at least 1 minute between them.
Blood pressure is recorded twice a day; once in the morning and once in the evening
Recordings over at least 4 days (ideally 7)
Discard readings from 1st day + calculate average from remaining.
What values constitute STAGE 1/MILD HTN?
systolic; 135-149
diastolic; 85-94
What values constitute STAGE 2/MODERATE HTN?
sytolic; 150-179
diastolic; 95-119
What values constitute STAGE 3/SEVERE HTN?
systolic; > 180
diastolic; > 120
What values constitute ISOLATED SYSTOLIC HTN?
systolic; > 140
diastolic; <90
how is HYPERTENSIVE URGENCY defined?
- no target organ damage
- systolic > 180
- diastolic > 110
what are the symptoms of hypertensive urgency?
headache, shortness of breath, nosebleed, severe anxiety
how is HYPTERTENSIVE EMERGENCY defined?
- systolic > 180
- diastolic > 120
- target organ damage
what are some of the symptoms of a Hypertensive emergency?
chest pain, shortness of breath, back pain, headache, visual changes, difficultly speaking, numbness
what is the management for hypertensive emergency?
- IV labetolol
- IV nitroglycerin
- and managed in ITU for close monitoring
what is the clinical use of ADRENALINE + why?
Anaphylactic shock + cardiogenic shock + cardiac arrest.
Stimulation of both alpha- and beta- adrenergic systems; causing systemic vasoconstritction (a), increase HR (B1) and bronchodilation (B2)
what is the clinical use of NORADRENALINE?
Severe hypotension + septic shock
what is the clinical use of DOPAMINE? and why?
Acute heart failure + cardiogenic shock
what is the clinical use of DOBUTAMINE?
Acute heart failure + cardiogenic shock + refractory heart failure
It is a sympathetic drug that directly stimulates the B1 receptors.
what are chemoreceptors sensitive to?
high Co2 + O2 + acidosis
name 5 medications that can cause a rise in blood pressure.
- oral contraceptive pill
- calcineurin inhibitors
- steroids
- nsaids
- antidepressants
- stimulants e.g. cocaine
what endocrine disorder is suspected with; unexplained hypokalaemia w/ urinary K+ wasting
PRIMARY HYPERALDOSTERONISM
name 4 characteristics of cushing’s disease.
- ecchymoses
- central obesity
- moon shaped/cushingoid facies
- proximal muscle weakness
list endocrine tumours that could be a cause of secondary hypertension.
- phaechromocytoma
- primary hyperaldosteronism
- conns
- cushings
what is a neuroendocrine tumour of the chromaffin cells of the adrenal gland?
PHAECHROMOCYTOMA