A nurse is caring for an infant who has Tetralogy of Fallot and notes that the infant is easily fatigued when eating. Which defect is not present in this cardiac congenital malformation?
Overriding aorta
Pulmonary stenosis
Left ventricular hypertrophy
Ventricular septal defect
The Correct Answer is C
A. Overriding aorta: In Tetralogy of Fallot, the aorta is positioned over the ventricular septal defect (VSD), rather than solely over the left ventricle as it would be in a normal heart. This is called overriding aorta, which allows blood from both the right and left ventricles to enter the aorta.
B. Pulmonary stenosis: This is a critical component of Tetralogy of Fallot. Pulmonary stenosis refers to narrowing of the pulmonary valve or the area just below it, which restricts blood flow from the right ventricle to the pulmonary artery. This results in decreased blood flow to the lungs for oxygenation.
C. Left ventricular hypertrophy: This choice is not typically associated with Tetralogy of Fallot. Left ventricular hypertrophy refers to an enlargement or thickening of the muscular wall of the left ventricle of the heart. It is often seen in conditions where the left ventricle has to work harder to pump blood, such as in hypertension or aortic stenosis, but it is not a characteristic feature of Tetralogy of Fallot.
D. Ventricular septal defect: This defect is one of the four components of Tetralogy of Fallot. A ventricular septal defect (VSD) is a hole in the septum, the muscular wall that separates the left and right ventricles of the heart. In Tetralogy of Fallot, the VSD allows oxygen-poor blood from the right ventricle to flow directly into the left ventricle and out to the body.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Promote maternal-infant bonding: While promoting maternal-infant bonding is essential for the overall well-being of the newborn and family, it may not be the priority in this situation. The immediate focus is on medical management and preventing complications associated with the myelomeningocele.
B. Provide age-appropriate stimulation: Age-appropriate stimulation is important for newborn development, but in the case of a newborn with a myelomeningocele awaiting surgery, the priority is to minimize any potential risk of injury or infection to the exposed neural tissue.
C. Educate the parents about the defect: Education about the myelomeningocele and its long-term implications is crucial for the parents' understanding and ability to care for their child. However, while important, this may not be the priority at the immediate moment.
D. Maintain integrity of the sac: This is the priority nursing goal in caring for a newborn with a myelomeningocele awaiting surgery. The sac covering the exposed neural tissue must be carefully protected to prevent infection and further damage. Measures such as keeping the sac moist with sterile saline dressings and preventing trauma to the area are essential to maintain its integrity.
Correct Answer is B
Explanation
A. Applying suction for 20 seconds:
Suctioning for 20 seconds is within the recommended duration for endotracheal suctioning in children. It allows adequate time for removing secretions without causing excessive trauma to the airway.
B. Introducing the catheter without suction:
This action is incorrect. When performing endotracheal suctioning, the catheter should be introduced into the endotracheal tube while applying suction. Introducing the catheter without suction may not effectively remove secretions and can lead to ineffective suctioning.
C. Rotating the catheter between the thumb and forefinger while suctioning:
Rotating the catheter between the thumb and forefinger while suctioning helps to prevent the catheter from sticking to the airway walls and facilitates the removal of secretions. This action is appropriate and helps ensure effective suctioning.
D. Allowing the child to rest for 30 to 60 seconds between suctioning passes:
Allowing the child to rest between suctioning passes helps minimize hypoxia and discomfort during the procedure. This action is appropriate and ensures that the child has adequate time to recover before the next suctioning pass.
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