PedsCardioGIGU Flashcards
Explain fetal heart development. Risk factors for complications?
Begins shortly after conception and is completed by 8wks gestation. Heartbeat starts at about 3wks.
Maternal substance abuse, maternal exposure to viruses, toxoplasmosis, German measles. Maternal diabetes. Family history of CHD. In most instances there is no known cause.
Explain the heart in children.
Size of the fist. Compliance is less in infants and young children. Compensates for decreased contraction with increased heart rate. HR is higher in infants, 110-160. In teens the HR is 60-100.
The heart in children under 7?
The heart lies more horizontally. Apex is higher and found at the 4th intercostal space. As lung grows, the heart is displaced downward.
The heart in ages 6-10?
Adolescents?
Heart is 10x the birth size and grows more vertically. Apex is at the 5th intercostal space.
In teens, it grows in size with the there’s rapid growth spurt.
Cardiac vs acquired heart disease?
Cardiac disease in children is congenital. The most common. Nearly half of all cases are diagnosed during the 1st week of life. 28% occur with as syndrome.
Acquired heart disease happens after birth and is a complication of CHD.
Present illness/symptoms for cardiac disease in children?
Activity intolerance, tachypnea, color change, sweating around the head with feeds. Failure to thrive: smaller in size, g/d delay, may have difficulty with nutrition, must work extra hard to pump blood
Past medical history and family history for cardiac issues?
Pregnancy hx: maternal infections, meds, illness, alcohol, diabetes.
Frequent respiratory infections. More than one episode of pneumonia is a red flag. CHD in the family, sudden deaths at early ages.
Risks include obesity and hyperlipidemia.
Physical inspection for cardiac issues?
General appearance, LOC and activity level, color (cyanosis, pallor), sweating, dysmorphic, edema (in babies around the face and eyes). Late stage can mean clubbing in older children.
Palpation for cardiac issues?
Pulses, their quality, amplitude, symmetry, hyperactive precordium/thrill. Femoral pulse is a critical assessment in infants. Start at the feet and move up.
Get arterial BP on all four extremities.
Hepatomegaly can mean the child is failing to pump enough blood and its backed up into the liver.
Auscultation for cardiac issues?
Apical pulse for 1 min, rate, rhythm. Listen in all 5 locations for s1 and s2.
Murmurs (most common finding): Location, radiation, relationship to the cardiac cycle, intensity, quality, variation with position. >50% of newborns have an innocent systolic murmur with a usually normal EKG and Cxr.
Arterial BP in the upper and lower extremities
Labs and diagnostics for cardiac issues?
ECG for valves and valve functions, how well the atrium and ventricles are functioning, definitively diagnostic. Echocardiography. ABG’s, CBC, BMP for h/h, check for polycythemia which is a compensation for hypoxia. Cxr for the size of the heart. ESR and CRP for inflammatory markers. Cardiac cath.
Pre cardiac catheterization care in children?
Sedative procedure in children, usually overnight. History and PE age, s/s, physical, has the test been done before, allergies. Allergies to shellfish or iodine in a dye used. Mark pedal pulses to make sure we know where to look after surgery. Education, what to expect, dressing.
Post cardiac catheterization care in children?
Monitor for complications. VS and pulse ox q15min for 1st hour, then q30mins for 2nd hour. Assess neuro and cardiac status. Femoral is the most common area of insertion, assess lower extremities for perfusion. May use a Doppler. Dressing. I+O, pain, education. Bedrest with extremity extended.
Assessing the dressing post cardiac catheterization?
Almost for 30 minutes. If bleeding, put pressure 1 inch above the site for 5-15 minutes. No moisture on the dressing. Bed rest with extremity extended, keep the leg straight.
Newborn cardiac screening?
Recommended at 24-48 hours of age. Detected with pulse ox. Screening should be no earlier than 24 hours after birth and prior to discharge.
Hole in the septum between the two ventricles, right to left shunt, skips the lungs. De-saturated blood enters circulation. Not enough O2 in blood means blue!
Decreased pulmonary blood flow aka cyanotic heart lesion. Cyanosis not always easy to recognize especially if patient has polycythemia jaundice, racial pigmentation, or anemia. Infants are usually unable to achieve an O2 of >100 after breathing 100% inspired O2: “100% oxygen test.”
Tricuspid atresia, tetralogy of fallot (TOF)
What four areas are affected with tetralogy of fallot?
Pulmonary stenosis, right ventricular hypertrophy, overriding aorta, ventricular septal defect (VSD)
Nursing assessment of tetralogy of fallot?
Chronic hypoxia, leading to death. Loud murmur. Polycythemia, body detects poor oxygenation so to compensate creates more RBCs. Hyper cyanotic spells can happen with moments of distress and blood work
Interventions for tetralogy of fallot?
Oxygen. Knee to chest position. Child may squat to push blood back up, increasing pressure and pushing blood back up into the core of the body. Keep calm. Morphine to calm the child and relax the pulmonary artery (vasodilator). Supply IV fluids.
Blood flow from the right ventricle is obstructed and slowed.
Valve between right atrium and ventricle doesn’t develop. Deoxygenated blood passes through foramen vale into the left atrium, never getting O2.
Pulmonary stenosis
Tricuspid atresia
Plentiful amount of blood in the lungs but can’t get out to the body, leading to increased pulmonary blood flow, which leads to HTN. Left to right shunt, oxygenated blood circulating throughout the lungs, although hypertrophy of RV can cause right to left shunting.
Increased pulmonary blood flow, acyanotic heart disease. Infants will present with a murmur of symptoms of congestive HF.
Atrial septal defect, ventricular septal defect, atrioventricular septal defect, patent ductus arteriosis
Nursing assessment of a ventricular septal defect (VSD)?
Murmur, tachypnea (may not finish a feed due to fatigue), poor growth, peripheral edema (difficulty circulating), HF, HTN, respiratory infections.
Hole in the wall between both ventricles. One of the more common ones with low risk and mortality. Patched up with a graft. Usually no further surgery is needed.
Ventricular septal defect.
Blood gets pushed into the right ventricle from the left ventricle because of pressure. Double blood going to the lungs. Increased RR, crackles, frequent respiratory infections like pneumonia. Symptoms depend on severity of defect.
Increases the workload of the heart causing lung congestion. May close on its own or with meds (indomethacin). Assessment and treatment?
Patent ductus arteriosus.
Harsh, continuous, machine-like murmur. Respiratory infections, poor growth, bounding peripheral pulses (attempt to increase BP), widened pulse pressure.
Coiled thread to stop the blood from mixing. Surgery to cut it out.
Defects that involve some type of narrowing, stenosis in the vessel.
Obstructive cardiac disorders Coarction of the aorta, aortic stenosis, pulmonary stenosis
Narrowing of the aorta, commonly at the ductus arteriosus. Blood flow is impeded. Nursing assessment?
Coarction of the aorta.
Increased BP in the upper extremities, decreased in the lower. Bounding upper extremity pulses, softer in the lower. Epistaxis, leg pain, notching of the ribs because young ribs are made of cartilage
Risk for aortic rupture, aortic aneurysm, CVA
Defects in which mixing of well oxygenated blood with poorly oxygenated blood. Overall decreased O2 content, decreased cardiac output, leads to HF.
Mixed cardiac defects.
Tranposition of the great arteries/vessels (TGV), total anomalous pulmonary venous connection (TAPVC), truncus arteriosus, hypoplastic left heart syndrome
Poorly oxygenated blood circulating, vessels are backwards, the aorta and the pulmonary artery. Assessment and diagnosis?
Transposition of the great vessels. Cyanosis without murmur. Diagnosed early
Balloon septostomy, may create an ASD to encourage mixing and oxygenation.
Underdeveloped, non-functional left side of the heart. Increasing cyanosis and circulatory collapse (shock).
Hypoplastic left heart syndrome.
Nursing management of the child with CHD?
Monitory VS, BP. Assess cardiac status. Administer digoxin and other meds.
They have decreased cardiac output, ineffective tissue perfusion, imbalanced nutrition, interrupted family processes, risk for infection
Med that slows down the heart rate and increases contractility?
Digoxin. In peds, small therapeutic range so accurate measurement. Avoid giving with food or fluid, 2 hours after a meal. Count apical pulse for 1 full minute. Do not give if <100 in children, <60 in adults.
Monitor levels and signs of toxicity: when vomiting check levels. If vomiting wait 4 hours, then give next dose. Call the HCP after two missing doses. Visual disturbances, low K+ increased risk for toxicity
Nursing management for ineffective tissue perfusion related to cardiac issues?
Position to maximize chest expansion, fowler’s or semi-fowler’s. Infant seat. Assess VS and pulse ox. Oxygen PRN, only when it’s really needed. Respiratory status and lung sounds. HF HF, fluid in the lungs
Nursing management for imbalanced nutrition related to cardiac issues?
Increased calorie meals (higher metabolic rate). Infants: high calorie formula or MBM fortifier. Child: high protein. Small, frequent feedings, limit to q20 mins every 3 hrs. Gavage remainder: tube feeding ensures proper nutrition. Special nipple to decrease work. Maybe pump then bottle feed, breastfeeding takes a lot of energy. Monitor growth: infants are 1 oz weight gain per day.
Nursing management of interrupted family processes related to cardiac issues?
Provide support, encourage parents to participate, encourage to touch and hold the child, to play with familiar toys. Provide anticipatory guidance for NG feeds at home, weighing the child on a routine basis. Explain plan of care. Recognize vulnerable child syndrome, allow child to do normal activities