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 B
Explanation
Following a cardiac catheterization, the nurse should provide the parent with appropriate discharge instructions to ensure the child's proper recovery. The correct instruction to include is option B: "Give the child acetaminophen for discomfort."
Explanation:
Option A: Offering the child clear liquids for the first 24 hours is not a typical instruction following a cardiac catheterization. After the procedure, the child may be allowed to resume a regular diet, as tolerated, based on the healthcare provider's orders.
Option B: This is the correct instruction. After cardiac catheterization, the child may experience some discomfort at the insertion site or the area where the catheter was threaded through the blood vessels. Acetaminophen can be used to manage mild pain or discomfort.
Option C: Taking a tub bath for the first 3 days is not typically mentioned in discharge instructions after a cardiac catheterization. The nurse might advise the parent to avoid submerging the catheter insertion site in water for a specific period and instead use sponge baths until permitted by the healthcare provider.
Option D: Keeping the child home for 1 week is not a standard recommendation for a cardiac catheterization. The recovery period after a cardiac catheterization is usually shorter, and the child can often resume normal activities within a day or two, depending on the specific circumstances of the procedure and the child's condition.
The nurse should thoroughly review the specific discharge instructions provided by the healthcare provider and ensure the parent understands the care required at home, including any restrictions on activities or signs of potential complications that require immediate attention.
Correct Answer is D
Explanation
D. "My child will take the enzymes to help digest the fat in foods."
Cystic fibrosis (CF) affects the exocrine glands, leading to thick and sticky mucus production, which can block the pancreatic ducts. As a result, children with CF have difficulty digesting fats and absorbing fat-soluble vitamins. Pancreatic enzyme replacement therapy (PERT) is prescribed to help improve fat digestion and nutrient absorption. These enzymes are taken with meals and snacks to aid in the breakdown of fats.
The other options are incorrect:
A. "My child will take the enzymes following meals." - This is the correct timing for taking pancreatic enzymes. The enzymes should be taken with meals and snacks, not following meals.
B. "My child will take the enzymes to improve her metabolism." - The purpose of taking pancreatic enzymes is not related to improving metabolism but to assist in fat digestion and nutrient absorption.
C. "My child will take the enzymes 2 hours before meals." - Taking pancreatic enzymes 2 hours before meals is not the recommended timing. They should be taken with meals and snacks to aid in fat digestion while eating.
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