Nursing Care of the Child With an Alteration in Perfusion/Cardiovascular Disorder Flashcards
Exam 2
Circulatory Changes From Gestation to Birth:
When is the fetal heart rate present?
The fetal heart rate is present on about postconceptual day 17.
In gestational weeks 2-8, what forms?
The four chambers of the heart and arteries are formed during gestational weeks 2 through 8.
During fetal development, where does oxygenation of the fetus occur?
During fetal development, oxygenation of the fetus occurs via the placenta;
What does NOT perform oxygenation or perfusion in the fetus?
the lungs, though perfused, do not perform oxygenation and ventilation.
The foramen ovale
an opening between the atria,
What does the foramen ovale allow for?
allows blood flow from the right to the left atrium.
The ductus arteriosus allows for what?
allows blood flow between the pulmonary artery and the aorta, shunting blood away from the pulmonary circulation.
What does the newborn’s first breath lead to?
Newborn’s first breath –> inflates the lungs and decreases Pulmonary Vascular Resistance to blood flow
In the newborn, what does a decrease in Pulmonary Vascular Resistance to blood flow lead to?
Pulmonary Artery Pressure drops –> promoting closure of the Ductus Ateriosus –> pressure in the Right Atrium decreases.
What occurs when bloodflow to the left side of the heart increases?
Blood flow to the left side of the heart increases,
Left Atrium pressure increases which leads to closure of the Foramen Ovale.
How are the ventricles of newborns?
The ventricle walls are similar in thickness, but with time the Left Ventricular wall thickens and it becomes more dominant over the next few months.
Cardiovascular Changes in Childhood:
What is effected?
Heart Rate
Blood pressure
Respiratory Rate
Cardiovascular Changes in Childhood:
How is HR in infancy? How does it change in childhood?
Faster in infancy (120-130 bpm), decreases as the child ages
Cardiovascular Changes in Childhood:
How is BP in infancy? How does it change in childhood?
Lower in infancy (80-55 mmhg)
Increases as the child ages
Cardiovascular Changes in Childhood:
How is RR in infancy? How does it change in childhood?
Faster in infancy, decreases as the child ages.
Cardiovascular Changes in Childhood:
How do BP, RR, HR values change in adolescence?
By adolescence, values approach adult levels.
Past Health History
History of maternal viral illnesses, i.e. Coxsackie, CMV, influenza, mumps, rubella.
Problems occurring after birth (associated congenital malformation).
Birth history (any NICU stays?)
Frequent infections.
Chromosomal abnormalities.
Prematurity.
Autoimmune disorders.
Use of medications, such as corticosteroids.
Family History of Risk Factors for Cardiovascular Disorders
Family history of heart disease or CHD (investigate the history further if heart disease occurred in a first-degree relative)
Sudden death in a young family member
Hyperlipidemia
Diabetes mellitus
Signs and Symptoms of a Cardiac Disorder (name first 5)
Cyanosis
Irregular heart rate
Edema
Clubbing of fingertips
Fever
Signs and Symptoms of a Cardiac Disorder (name last 4)
Retractions or increased work of breathing
Prominence of precordial chest wall
Visible, engorged, or abnormal pulsations
Abdominal distention
Health History of Present Illness should include what about illness?
When the symptoms started and how they progressed.
Health History of Present Illness should include what medications?
Any treatments and medications used at home.
Health History of Present Illness should include what about symptoms?
History of orthopnea, dyspnea, easy fatigability, growth delays, squatting, edema, dizziness, frequent pneumonia.
Poor feeding, fatigue, lethargy, vomiting, failure to thrive.
Diaphoresis, delays in motor development, cyanosis, tachypnea.
Health History of Present Illness should include what when comparing pt to peers?
Activity level compared to peers.
Diagnostic Tests for Cardiovascular Disorders:
Pulse oximetry
Electrocardiogram (ECG) and Holter monitoring
Echocardiogram
Chest radiograph
Exercise stress testing
Laboratory tests
Arteriogram and cardiac catheterization
Diagnostic Tests for Cardiovascular Disorders: lab tests include?
CBC, BMP, C-reactive protein (CRP), Erythrocyte sedimentation rate (ESR)
Congenital heart disease
Interference in the development of the heart during fetal life.
What are examples of issues associated with Congenital heart disease?
Septal walls or valves may fail to develop, vessels or valves may be stenotic, narrowed, or transposed
In congenital heart disease, what is present at birth?
Structural anomalies that are present at birth.
What accounts for the largest percentage of all birth defects?
CHD accounts for the largest percentage of all birth defects.
Congenital heart disease:
What is often associated with CHD?
Many Chromosomal defects are associated with CHD, (Downs, Trisomy 13, Trisomy 18, Williams syndrome)
Acquired heart disease
Disorders that occur after birth (heart failure, most common reason for admission).
Acquired heart disease
How does it develop?
Develops from a wide range of causes, or can occur as a complication or long-term effect of CHD.
Risk Factors for Cardiovascular Disorders in Childhood:
Congenital
Acquired
Risk Factors for Cardiovascular Disorders in Childhood: Congenital
Congenital malformations, genetic syndromes, family history, maternal drug or alcohol exposure, prematurity
Risk Factors for Cardiovascular Disorders in Childhood: Acquired
Infections (rheumatic fever, Kawasaki disease, endocarditis), obesity, diabetes, drug or alcohol exposure, hypertension, chemotherapy, other diseases (connective tissue disorders, autoimmune or endocrine diseases), organ transplant, hyperlipidemia