OverviewTetralogy of Fallot (teh-TRAL-uh-jee of fuh-LOW) is a rare condition caused by a combination of four heart defects that are present at birth (congenital). Show
These defects, which affect the structure of the heart, cause oxygen-poor blood to flow out of the heart and to the rest of the body. Infants and children with tetralogy of Fallot usually have blue-tinged skin because their blood doesn't carry enough oxygen. Tetralogy of Fallot is often diagnosed while the baby is an infant or soon after. Sometimes, depending on the severity of the defects and symptoms, tetralogy of Fallot is not detected until adulthood. All babies who have tetralogy of Fallot need corrective surgery. People with tetralogy of Fallot need regular doctor's checkups for the rest of their life and may have activity restrictions. Tetralogy of FallotSymptomsTetralogy of Fallot symptoms vary, depending on the amount of blood flow that's blocked. Signs and symptoms may include:
Tet spellsSometimes, babies who have tetralogy of Fallot will suddenly develop deep blue skin, nails and lips after crying or feeding, or when agitated. These episodes are called tet spells. Tet spells are caused by a rapid drop in the amount of oxygen in the blood. Tet spells are most common in young infants, around 2 to 4 months old. Toddlers or older children might instinctively squat when they're short of breath. Squatting increases blood flow to the lungs. When to see a doctorSeek medical help if you notice that your baby has the following signs or symptoms:
If your baby becomes blue (cyanotic), place your baby on his or her side and pull your baby's knees up to his or her chest. This helps increase blood flow to the lungs. Call 911 or your local emergency number immediately. CausesTetralogy of Fallot occurs as the baby's heart is developing during pregnancy. Usually, the cause is unknown. Tetralogy of Fallot includes four defects:
Some children or adults who have tetralogy of Fallot may have other heart defects such as a hole between the heart's upper chambers (atrial septal defect), a right aortic arch or problems with the coronary arteries. Risk factorsWhile the exact cause of tetralogy of Fallot is unknown, some things might increase the risk of a baby being born with this condition. Risk factors for tetralogy of Fallot include:
ComplicationsA possible complication of tetralogy of Fallot is infection of the inner lining of the heart or heart valve caused by a bacterial infection (infective endocarditis). Your or your child's doctor may recommend taking antibiotics before certain dental procedures to prevent infections that might cause this infection. People with untreated tetralogy of Fallot usually develop severe complications over time, which might result in death or disability by early adulthood. Complications from tetralogy of Fallot surgeryWhile most babies and adults do well after open-heart surgery to repair tetralogy of Fallot defects (intracardiac repair), long-term complications are common. Complications may include:
It's very important to have regular checkups with a heart doctor trained in caring for people with congenital heart disease (pediatric cardiologist or adult congenital cardiologist). Aug. 17, 2021 Which of the following defects are associated with tetralogy of Fallot quizlet?Tetralogy of Fallot is a combination of four congenital heart defects. The four defects are a ventricular septal defect (VSD), pulmonary stenosis, a misplaced aorta and a thickened right ventricular wall (right ventricular hypertrophy).
Which assessment finding would the nurse recognize as common in infants with Down syndrome?Other common features include: a flat and wide face, a short neck, excessive joint flexibility, and a protruding tongue due to a small mouth and relatively large tongue.
Which of the following is best described as the inability of the heart to pump an adequate amount of blood to systemic circulation at normal filling pressures?Heart failure is a chronic, progressive condition in which the heart muscle is unable to pump enough blood to meet the body's needs for blood and oxygen.
When administering digoxin to an infant the medication should be withheld and the health care provider notified?Withhold dose and notify health care professional if pulse rate is <60 bpm in an adult, <70 bpm in a child, or <90 bpm in an infant.
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