Which condition is consistent with the cardiac defect of transposition of the great vessels Quizlet
OverviewTransposition of the great arteries (TGA) is a serious, rare heart problem in which the two main arteries leaving the heart are reversed (transposed). The condition is present at birth (congenital heart defect). Show
TypesThere are two types of transposition of the great arteries:
Corrective surgery soon after birth is the usual treatment for transposition of the great arteries. SymptomsSigns of transposition of the great arteries may be detected during certain routine screening tests done during pregnancy. However, some people with congenitally corrected transposition of the great arteries may not have symptoms for many years. Signs and symptoms of transposition of the great arteries after birth include:
A blue skin color may not be as noticeable in babies who are born with transposition of the great arteries and other congenital heart defects. This is because these other heart conditions — such as atrial septal defect, ventricular septal defect or patent ductus arteriosus — may allow some oxygen-rich blood to travel through the body. But as the baby becomes more active, the congenital heart defects won't allow enough blood through and eventually the blue skin color will become obvious. When to see a doctorComplete transposition of the great arteries is usually detected before birth, immediately after birth or within the first hours to weeks of life. Always seek emergency medical help if you notice that anyone develops a blue coloring of the skin. CausesTransposition of the great arteries occurs during pregnancy when the baby's heart is developing. The cause is most often unknown. To understand transposition of the great arteries, it may be helpful to know how the heart typically pumps blood.
Complete transposition of the great arteries (D-TGA)In a complete transposition of the great arteries (also called dextro-transposition of the great arteries), the pulmonary artery and the aorta have switched positions. The pulmonary artery connects to the left ventricle, and the aorta is connected to the right ventricle. As a result, oxygen-poor blood flows through the right side of the heart and back to the body without passing through the lungs. Oxygen-rich blood flows through the left side of the heart and directly back into the lungs without being pumped to the rest of the body. Congenitally corrected transposition (L-TGA)In this less common type, also called levo-transposition of the great arteries (L-TGA), the two lower heart chambers (ventricles) are switched. The left ventricle is on the heart's right side and receives blood from the right atrium, and the right ventricle is on the heart's left side and receives blood from the left atrium. The blood usually flows correctly through the heart and body. The right-sided left ventricle attaches to the pulmonary artery, which delivers oxygen-poor blood to the lungs, while the left-sided right ventricle attaches to the aorta, which carries oxygen-rich blood to the body. Because the two chambers aren't exactly alike, the heart can have long-term difficulty pumping blood. People with L-TGA may also have problems with the tricuspid heart valve. Risk factorsSeveral things may increase the risk of a baby being born with transposition of the great arteries, including:
ComplicationsTransposition of the great arteries can contribute to other health concerns later in life. Complications depend on the type of transposition of the great arteries (TGA). Potential complications of complete transposition of the great arteries (D-TGA) may include:
Potential complications of congenitally corrected transposition (L-TGA) may include:
PreventionIf you have a family history of congenital heart defects or if you already have a child with one, consider talking with a genetic counselor and a cardiologist experienced in congenital heart defects before getting pregnant. It's important to take steps to have a healthy pregnancy. Before becoming pregnant, get up to date on all immunizations and start taking a multivitamin with 400 micrograms of folic acid. Jan. 19, 2022 Which condition is consistent with the cardiac defect of transposition?In congenitally corrected transposition, the valve between the upper and lower heart chambers (tricuspid valve) may not close completely, causing blood to move backward. This condition is called tricuspid valve regurgitation. Regurgitation can eventually lead to reduced heart pumping function.
Which of the following defects are included in tetralogy of Fallot quizlet?The four defects are a ventricular septal defect (VSD), pulmonary stenosis, a misplaced aorta and a thickened right ventricular wall (right ventricular hypertrophy).
Where is coarctation of the aorta quizlet?Where can coarctation of the aorta (COA) be located? ANS: C COA can occur anywhere between the origin of the aortic arch and the bifurcation of the aorta in the lower abdomen.
Which clinical finding may be present in an older child with coarctation of the aorta quizlet?Clinical manifestations of coarctation of the aorta include hypertension noted in the upper extremities with decreased or absent pulses in the lower extremities. Children may also have cool mottled skin and occasionally experience leg cramps during exercise.
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