Cardiovascular Flashcards
Congenital Heart Disease
-Anatomic Abnormalities present at birth
-6 to 13 per 1000 live births
Symptoms of cardiac dysfunction
-poor feeding
-tachypnea, tachycardia
-failure to thrive, poor weight gain, activity intolerance
-developmental delays
-positive prenatal history
-poisitve family history of cardiac disease
Inotropes
-Common vasoactive drugs include:
Dopamine
Dobutamine
Epinephrine
-Use Blood pressure, and cap refill: to increase measure cardiac output
-Dosed by minutes (per kg/min)
Physical Characteristics of Cardiac Defects
-Pink and blue babies: It’s all about the duct
Atrial Septal Defect (ASD)
-Heart murmur
-Few symptoms in children
-Shortness of breath
-Poor growth
-Treatment: surgical closure, which may increase pulmonary hypertension, closure with cardiac catheterization, follow up with a cardiologist
Ventricular Septal Defect
-Murmur
-CHF: depending on the size of VSD, failure to thrive
-Treatment: observation (cardiologist, medical management with Digoxin), surgical repair
Ventricular Septal Defect
-Murmur
-CHF: depending on the size of VSD, failure to thrive
-Treatment: observation (cardiologist, medical management with Digoxin), surgical repair
Tetralogy of Fallot
-4 separate defects within one syndrome
-Ventricular septal defects
-pulmonary stenosis
-Secondary thickening of the right ventricle
-Aorta lies directly over VSD
Tet Spells
-increased resistance of blood flow to the lungs with increased flow of desaturated blood to the body
-sudden cyanosis, progressive cyanosis over first year of life
-syncope
-hypoxic brain injury
-death
Cause of Tet Spells
-crying
-defecation
-feeding
-awakening from naps
-fever
-dehydration
-tachycardia (deceased filling time leads to reduced end-diastolic volume)
-Medications (ACE inhibitors)
Cause of Tet Spells
-crying
-defecation
-feeding
-awakening from naps
-fever
-dehydration
-tachycardia (deceased filling time leads to reduced end-diastolic volume)
-Medications (ACE inhibitors)
Nursing Care for Tet Spells
-place an infant in a knee-chest position
-administer 100% oxygen
-admin morphine
-use a calm approach
-IV fluid replacement for blood volume expansion
Treatment CHF
-correct cardiac defect
-enhancing cardiac contractility (digoxin)
-reduce afterload (lasix)
-improve oxygen delivery
-enhance nutrition
Rheumatic Fever
-a systemic immune disease that affects the joints, skin, heart, blood, vessels, and brain
-may develop after strep throat or scarlet fever
-very rare in the U.S.
-prevented by prompt diagnosis, antibiotics, and anti-inflammatory med
Symptoms of PHTN
-Progressive shortness of breath (especially with activity)
-Hyperventilation
-Fatigue
-Pink frothy sputum
-Progressive cyanosis
-Right sided heart failure
–Distension of veins in the neck
–Swelling of the legs and hands due to fluid retention
–Enlarged liver
Treatment PHTN
- Improve alveolar oxygenation
- Minimize pulmonary vasoconstriction
- Maintain systemic blood pressure and perfusion
- Treatments do not restore normal life expectancy
All treatment is palliative.
Currently, there is no cure
Nursing Care of CHD
Decrease Cardiac Workload
1. provide rest periods
2. consolidate care
3. respond to crying
4. monitor tolerance to feedings