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Study Guide 1
STUDY!
69
Nursing
Not Applicable
01/18/2013

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Term
pre-HTN
Definition
systolic 120-139
diastolic 80-89

follow-up in 1 year

encourage lifestyle modification

no drug therapy required
Term
stage 1 HTN
Definition
systolic 140-159
diastolic 90-99

follow-up in 2 months

encourage lifestyle modification

drug therapy: thiazide diuretics, ACEI, ARB, BB, CCB, or a combination
Term
stage 2 HTN
Definition
systolic >160
diastolic >100

follow-up in 1 month

encourage lifestyle modification

drug therapy: two-drug combination - thiazide diuretic AND ACEI or ARB or BB or CCB
Term
hypertensive emergency
Definition
systolic >180
diastolic >120

seek treatment immediately, then follow-up weekly

encourage lifestyle modification

drug therapy: two-drug combination (same as stage 2)

pt has s/s of target organ dysfunction-can cause MI, HF

BP is GRADUALLY lowered in the hospital, but Nipride is given immediately to start decreasing BP
Term
most common thiazide diuretic
Definition
HCTZ (hydrochlorothiazide)
Term
thiazide diuretics impair...
Definition
carbohydrate tolerance, so blood sugars increase
Term
monitor pts taking thiazide diuretics for...
Definition
photosensitivity

cross-sensitivity (allergies) to sulfa drugs
Term
diuretics are used to treat...
Definition
HTN
CHF
angina
some arrythmias
Term
how thiazide diuretics work
Definition
causes body to get rid of excess fluids and Na+ through urination

increased urine output
decreased blood volume
decrease in Na+ in body
vasodilation
decrease in BP
Term
adverse effects of thiazide diuretics
Definition
hypokalemia
hyperglycemia
hypercalcemia
anorexia
Term
hardest ethnic group to treat for HTN
Definition
African Americans:
-men are more likely to have HTN at
a young age (30's)

-more NA+ sensitive

-more likely to develop
complications associated with HTN
(stroke, kidney disease)
Term
normal BP
Definition
systolic <120
diastolic <80

follow-up in 2 years
Term
hypertensive urgency
Definition
systolic >180
diastolic >120

no signs of target organ dysfunction

s/s: headache, nosebleed, SOB, anxiety

drug therapy: two-drug combination (same as stage 2)

follow-up in a few days
Term
nursing responsibilities BEFORE giving a diuretic
Definition
-ask about medication hx (herbals and OTC)
-check BP (call dr if BP is low)
-ask women if they are pregnant or breastfeeding
-check K+ levels (call dr if low)
-ask about allergies
Term
nursing responsibilities AFTER giving a diuretic
Definition
-monitor VS q4-8h
-monitor for dizziness or light-headedness (BP is too low)
-monitor for orthostatic hypotension (take BP when lying down, sitting, and standing)
-monitor urine output
-monitor K+ levels
Term
patient teaching about diuretics
Definition
-keep a daily record of BP and weight
-keep all follow-up appts
-take all doses as prescribed
-notify dr of s/s of hypotension or chest pain
-lifestyle changes
Term
cultural considerations r/t HTN medications
Definition
-African Americans respond better to diuretcs such as Lasix (furosemide) and HCTZ
-European Americans respond better to BB
-Chinese are more sensitive to propanolol (BB), so require 1/2 the blood level
Term
pt teaching about HTN
Definition
-take medications as prescribed
-change positions slowly to prevent falls
-modify diet to reduce Na+ and fat
-stop smoking
-exercise
-limit alcohol intake
-get adequate sleep
Term
HCTZ
Definition
thiazide diuretic
Term
Cardizem (diltiazem)
Definition
CCB
Term
verapamil
Definition
CCB
Term
minoxidil
Definition
direct vasodilator
Term
Bumex (bumetanide)
Definition
loop diuretic
Term
Coumadin (warfarin)
Definition
clotting factor synthesis inhibitor (anticoagulant)
Term
heparin
Definition
thrombin inhibitor (anticoagulant)
Term
Digitalis (digoxin)
Definition
cardiac glycoside
Term
propranolol
Definition
BB
Term
pathophysiology of mitral stenosis
Definition
mitral valve thickens, chordae tendinae shorten->blood flow is obstructed b/w L atrium and L ventricle->L atrium enlarges to hold extra blood->blood backs up in pulmonary circulation and in R ventricle->R ventricle enlarges to hold extra blood->R ventricle fails->less blood is pumped to L atrium and L ventricle->CO is decreased
Term
etiology of mitral stenosis
Definition
-rheumatic fever (major cause)
-symptoms of valve damage take 2-4 years to appear after having rheumatic fever
-rheumatic fever is less common today, so mitral stenosis is less common as well
Term
s/s of mitral stenosis
Definition
-might not have symptoms
-click/low-pitched murmur might be heard
-exertional dyspnea
-cough
-hemoptysis (bloody sputum)
-respiratory infections
-edema of ankles and feet
Term
complications of mitral stenosis
Definition
-emboli can form from blood sitting in L atrium and can cause stroke/seizures
-A fib
-when R ventricle fails, symptoms r/t HF appear
-pulmonary edema
Term
diagnostic tests for mitral stenosis, aortic stenosis, mitral regurgitation, aortic regurgitation
Definition
-ECG
-chest xray
-cardiac catheterization
Term
therapeutic treatment of mitral stenosis
Definition
-no symptoms = no treatment
-anticoagulants to prevent emboli
-percutaneous balloon valvuloplasty (opens the mitral valve)
-valvuloplasty (valve repair)
-mitral valve replacement
Term
pathophysiology of aortic stenosis
Definition
aortic valve thickens->blood flow obstructed between L ventricle and aorta->L ventricle contracts harder and hypertrophies->decreases CO and eventual HF
Term
etiology of aortic stenosis
Definition
-rheumatic heart disease and congenital defects (major causes)
-can be r/t aging
Term
s/s of aortic stenosis
Definition
-symptoms take many years to be seen
-angina (primary symptom)
-murmur
-syncope
-HF symptoms
-DOE
-fatigue
-pulmonary edema
Term
complications of aortic stenosis
Definition
-HF
-arrythmias
-endocarditis
Term
therapeutic treatment of aortic stenosis
Definition
-valve replacement
-HF symptoms treated carefully
Term
pathophysiology of mitral regurgitation
Definition
mitral valve does not close completely->blood backs up in L atrium->L atrium enlarges to hold extra blood->L ventricle enlarges to hold extra blood from the L atrium->blood backs up in pulmonary circulation and in R ventricle->R and L ventricles may eventually fail
Term
etiology of mitral regurgitation
Definition
-rheumatic heart disease
-endocarditis
-rupture/dysfunction of chordae tendinae/papillary muscles
-HTN
-MI
-may be r/t aging
-congenital defects
Term
s/s of mitral regurgitation
Definition
-no symptoms at first
-murmur
-DOE
-fatigue
-syncope
-cough
-edema
-irregular pulse
Term
complications of mitral regurgitation
Definition
-A fib
-HTN
-HF
-endocarditis
Term
therapeutic treatments for mitral regurgitation
Definition
-no symptoms = no treatment
-ACEI prescribed to reduce workload
-anticoagulants prescribed to prevent emboli
-HF symptoms treated
-emergency surgery
Term
pathophysiology of aortic regurgitation
Definition
aortic valves don't close completely->blood gets backed up between aorta and L ventricle->L ventricle enlarges to hold extra blood->L ventricle contracts harder to pump the higher blood volume out->L ventricle fails eventually->CO decreases
Term
etiology of aortic regurgitation
Definition
-rheumatic heart disease
-congenital defects
-may be r/t aging
-syphilis
-HTN
-endocarditis
Term
s/s of aortic regurgitation
Definition
-may not have symptoms for years
-DOE
-fatigue
-murmur
-diastolic BP decreases
-angina
-diaphoresis
Term
complications of aortic regurgitation
Definition
-HF
-endocarditis
Term
therapeutic treatments for aortic regurgitation
Definition
-vasodilators
-valve repair
-valve replacement
Term
nursing process for postop cardiac surgery
Definition
-pt goes to ICU for 1-2 days for close observation
-pt connected to cardiac monitor and ventilator
-pt put under a warming device
-head to toe assessment completed
-monitor tubes (chest tube, NG tube, catheter)
-monitor body temp
-VS, O2 sat, and BP monitored every 15-30 mins (decreases in time as pt stabilizes)
-I&Os measured
-12 lead ECG and xray is done
-when pt awakes: keep eye contact, touch carefully, explain procedure in simple terms
-monitor pain levels
Term
anticoagulation therapy
Definition
-do not thin blood, do not dissolve clots
-normal INR labs: 2-3.5, done every 3-5 days
-do not use aspirin
-antidote is vitamin K
-prescribed: after valve replacement, to reduce risk of stroke/HA, during open heart surgery, for pts on bed rest
Term
nursing responsibilities BEFORE giving an anticoagulant
Definition
-review medication hx (herbals and OTC)
-check HR and BP and baseline coagulating results
-ask about pregnancy and breastfeeding
-review hx of bleeding problems
-teach about side effects and signs of bleeding
Term
nursing responsibilities AFTER giving an anticoagulant
Definition
-monitor for s/s of bleeding
-monitor for allergic reactions
-check HR and BP
-avoid giving any injections
-make sure follow-up coagulation labs are drawn
-teach pt: keep all follow-up appts, take meds as prescribed, use soft toothbrush and electric shaver, avoid activities that may cause injury
Term
considerations of anticoagulation therapy
Definition
-heparin may be prescribed if anticoagulation therapy is necessary during pregnancy/breastfeeding, but may cause bleeding during 3rd trimester and/or delivery
-older adults are more sensitive to coagulation therapy, and are more likely to experience side effects (especially older women)
-older adults may require lower doses
Term
DVT
Definition
formation of a blood clot in a deep vein (thigh or calf muscle usually)

at risk: over 60, smoker, overweight, sedentary lifestyle

s/s: edema, pain, tenderness, warmth at affected area, red/discolored skin at affected area, visible surface veins, leg fatigue

prevention: ambulate, low dose anticoagulant, compression stockings

treatment: thrombolytics, surgery, O2, anticoagulants
Term
PE
Definition
blood clot has traveled into a pulmonary artery

at risk: sedentary lifestyle, recent surgery, cancer, HF, stroke, pregnancy, childbirth, birth control, hormone therapy, smoker

s/s: sudden onset of dyspnea, tachycardia, tachypnea, cough, crackles in lungs, chest pain

prevention: ambulation, anticoagulants, compression stockings

treatment: thrombolytics, surgery, O2, anticoagulants
Term
endocarditis
Definition
infection of endocardium-organism attaches to endocardium, lesions form

s/s: fever, chills, aching muscles and joints, fatigue, dyspnea, cough, edema, hematuria, mumur, splinter hemorrhages, petechiae, Janeway lesions, Osler's nodes

prevention: daily oral care, prophylactic antibiotics

treatment: hospitalization, antimicrobial drugs, rest, surgical repair/replacement of any damaged valves

more common in men
Term
pericarditis
Definition
inflammation of pericardium

s/s: chest pain (most common), dyspnea, low-grade fever, cough, pericardial friction rub

treatment: anti-inflammatories, corticosteroids, surgery, bedrest
Term
cardiomyopathy
Definition
-enlargement of heart muscle
-3 types: dilated, hypertrophic, restrictive

s/s: HF, DOE, orthopnea, fatigue, A-fib, syncope, arrythmias, thrombi

treatment: no cure, managing HF, palliative care, ACEI/ARB/BB/diuretics/digoxin prescribed, surgery, transplant
Term
acute coronary syndrome
Definition
angina, MI, ischemia, sudden cardiac death (includes all four of these)

s/s: chest pain, SOB, dizziness, nausea, sweating, crackles/wheezes in lungs, irregular pulse, mumur

treatment: aspirin, O2 therapy, PCI, "fab four" drugs (antiplatelets, statins, ACEIs, BB), analgesics, limited activity, diet and weight loss, smoking cessation
Term
infants with CHF
Definition
-neonates and infants <2 months old-most likely to present with CHF r/t structural heart disease
-have a hard time feeding, takes extra time

s/s: increased respirations/SOB, pleural effusion, murmur, peripheral edema, diaphoresis,
Term
goal of treatment for HTN
Definition
healthy person: 140/90

person with other health problems (diabetes/kidney issues): 130/80
Term
MI
Definition
heart attack resulting in the death of heart muscle

cause: partial/complete blockage of a coronary artery; decreased blood supply to heart

at risk: men over 40, women who smoke or use oral contraceptives

s/s: chest pain, SOB, dizziness, nausea, sweating, crackles/wheezing in lungs, irregular pulse, murmur

treatment: (should be treated immediately); chew adult aspirin, O2, PCI, "fab four" drugs-antiplatelets, statins, ACEIs, BBs

prevention: diet with decreased fats, exercise, smoking cessation,
Term
pathophysiology of HTN
Definition
primary HTN: unknown cause, majority of people have this kind (90%)

secondary: known cause (kidney damage, stress)
Term
restrictive cardiomyopathy
Definition
cardiac muscle stiffens

impairs ventricular stretching

very rare
Term
hypertrophic cardiomyopathy
Definition
L ventricle muscle wall enlargement

decreased ventricular filling

causes sudden death in athletes
Term
dilated cardiomyopathy
Definition
ventricular cavity enlarges

contractility decreases

stasis of blood

most common
Term
kawasaki disease
Definition
-inflammation of blood vessels in children
-rare
-most common in Japan

cause: unknown

s/s: high fever, red eyes, cracked lips, red mucous membranes, swollen hands and feet, rash, swollen nodes, joint pain/swelling

treatment: IV gamma globulin, high dose aspirin

prevention: unknown cause = no prevention
Term
rheumatic fever
Definition
autoimmune reaction to upper respiratory (strep) infection

usually occurs between ages 5-15

s/s: polyarthritis, chorea (uncontrolled movements), carditis, fever, pneumonitis

prevention: treating strep infection immediately

treatment: antibiotics, anti-inflammatories
Term
thrombophlebitis
Definition
-formation of a clot and inflammation within a vein
-most common disorder of veins, affecting legs most often

etiology: venous stasis, damage to vein lining (IV catheters), increased blood coagulation

prevention: prevent dehydration, ambulation, anti-embolism devices, ROM exercises

s/s: superficial veins-warmth, redness, swelling, tenderness; deep veins-swelling, edema, pain, warmth, tenderness, + homan's sign

treatment: superficial veins-warm/moist heat, analgesics, NSAIDs, compression stockings; deep veins-heparin, warfarin, bedrest, elevate extremity, warm/moist heat, compression stockings
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