A nurse is caring for an infant who has a congenital heart defect. Which of the following defects is associated with increased pulmonary blood flow?
Coarctation of the aorta
Patent ductus arteriosus
Tetralogy of Fallot
Tricuspid atresia
The Correct Answer is B
A patent ductus arteriosus (PDA) is a congenital heart defect associated with increased pulmonary blood flow. In normal fetal circulation, the ductus arteriosus allows blood to bypass the lungs since the baby receives oxygen from the mother's placenta. After birth, the ductus arteriosus should close, redirecting blood flow to the lungs for oxygenation. However, in some infants with PDA, the ductus arteriosus remains open, causing an abnormal connection between the aorta and the pulmonary artery. As a result, oxygenated blood from the aorta flows back into the pulmonary artery, increasing the workload on the lungs.
The other options are as follows:
A. Coarctation of the aorta - Coarctation of the aorta is a narrowing of the aorta, which obstructs blood flow and leads to increased blood pressure in the upper body and reduced blood flow to the lower body.
C. Tetralogy of Fallot - Tetralogy of Fallot is a combination of four heart defects that results in decreased pulmonary blood flow due to a ventricular septal defect (VSD), overriding aorta, pulmonary stenosis, and right ventricular hypertrophy.
D. Tricuspid atresia - Tricuspid atresia is a congenital heart defect where the tricuspid valve does not develop correctly, resulting in an absent or abnormal tricuspid valve. This defect prevents blood flow from the right atrium to the right ventricle and, therefore, reduces pulmonary blood flow.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The nurse should recommend bananas as a safe food choice for a 2-year-old child. Bananas are soft and easy to chew, making them safe for young children. They do not pose a choking hazard, unlike grapes, raw carrots, or celery.
Option B (Grapes) can be a choking hazard for young children, especially if they are not cut into small pieces or are given whole.
Option C (Raw carrots) and Option D (Celery) are hard and crunchy, and they require more chewing, which may not be safe for a 2-year-old child who is still developing their chewing and swallowing abilities.
As a general guideline, when selecting foods for young children, it is essential to choose soft, easily chewable, and non-choking hazard options to promote safe eating and reduce the risk of choking incidents.
Correct Answer is D
Explanation
The nurse's priority assessment finding in an adolescent who experienced blunt trauma to the abdomen is low blood pressure (hypotension). Hypotension could indicate significant internal bleeding or hemorrhage, which is a life-threatening condition and requires immediate attention. The decreased blood pressure may be a sign of shock, and prompt intervention is needed to stabilize the client's condition and prevent further deterioration.
While all the other findings (respiratory rate, abdominal pain, and heart rate) are important and should be assessed and monitored, blood pressure is the most critical in this situation due to its potential association with severe internal injuries and the risk of hypovolemic shock.
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