Hypertension
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Transcript of Hypertension
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Hypertension
“the silent killer”
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Regulation of Blood Pressure
Arterial baroreceptor system Regulation of body fluid volume Renin-angiotensin-aldosterone system Vascular autoregulation
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Essential Hypertension No known cause Associated risk factors
1. Age >60, family history
2. Excessive calorie consumption, physical inactivity
3. Excessive alcohol intake
4. Hyperlipidemia
5. African ethnicity
6. High intake salt/caffeine
7. Reduced intake of potassium/calcium/magnesium
8. Obesity, smoking, stress
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Risk FactorsModifiable & Non-modifiable
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Vessel Wall Build-up
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Complications of Hypertension Myocardial infarction Cerebrovascular accident Peripheral vascular disease Renal failure
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Lifestyle Interventions Hypertension Sodium restriction Heart healthy diet Moderation of alcohol intake Exercise Relaxation techniques Smoke cessation Drug therapy
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Sodium Restriction
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Heart Dealthy Diet
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Moderation of Alcohol
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Exercise
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Relaxation Techniques
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Quit smoking
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Supporting Smokers Who Want to Quit
• 70% of smokers want to quit
• 1/3 make a serious quit attempt each year
• There are effective treatments
• Nurses play a significant role in smoke cessation support
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Nicotine Addiction
• Smokers are rapidly addicted to nicotine
• 7 of 10 adults regret smoking and would like to stop (70%)
• 98% relapse in one year in not “program”
• It takes 14-20 seconds for heroin to reach addiction centers when given IV
• It takes 7-10 seconds for nicotine to reach addiction centers when smoked
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Immediate and long term benefits of quitting
> 20 mins BP and P go down to normal
Body temp returns to normal
> 8 hrs Carbon monoxide drops,O2 increases
>24 hrs Chance of MI goes down
> 48 hrs Food tastes and smells better
> 2 weeks Coughing, congestion, tiredness, SOB
Overall energy
> 1 year Risk of heart disease by 50%
> 10-15 yr Risk of dying prematurely = non smoker
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Pharmacological Methods
• Nicotine replacement therapy (NRT)– Gum– Patch– Inhaler
• Bupropion (Zyban)
• Varenicline (Champix)
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A slip is not a fall!
Advise to the client:
• Treat it like an emergency – get away from the trigger, get rid of the smokes
• Think about what happened, what went wrong and identify the triggers
• Remember the signs next time
• Feel good about how far you have come, picture yourself a non-smoker
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• Diuretics Beta-adrenergic
blocking agents Calcium channel-
blocking agents Angiotensin-
converting enzyme inhibitors (ACE inhibitors)
Angiotensin II receptor antagonists (ARB)
Central alpha agonists
Vasodilators Alpha-adrenergic
receptor agonists
Drug Therapy Hypertension
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Drug Therapy (related)
• Statins
• Anticoagulants
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Classification
Diruretic
Generic/Trade Name
Effect on K+ Side/adverse effects
Nrsg Response
Loop Diuretic
Thiazide and Thiazide-like diuretics
Spironolactone
(Aldactone)
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Secondary Hypertension
Related to specific disease states and medications
Diseases: Medications:
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Secondary Hypertension Clinical manifestations
1. Symptomless
2. Headaches, dizziness, fatigue
3. Vascular changes in the retina
4. Abdominal bruits
5. Tachycardia
6. Sweating/pallor
7. Delayed/absent femoral pulses Nursing diagnosis
1. Deficient knowledge
2. Risk for ineffective therapeutic regimen management
3. Ineffective tissue perfusion
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Malignant Hypertension Severe elevated B/P Rapidly progressive Symptoms:
1. Morning headaches
2. Blurred vision
3. Dyspnea/uremia
4. Diastolic B/P >150 mm Hg (130 mm Hg)
5. Untreated = renal failure, left ventricular failure, stroke
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Hypotension/Shock
• Stages of shock
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Type of shock Cause Patho S & S
hypovolemic
cardiogenic
Distributive• neurogenic
• septic
• chemical
Obstructive
Anaphylactic