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 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.
Correct Answer is B
Explanation
For a child with hemophilia experiencing a joint injury, the best home treatment and therapy would be elevation and the application of ice to the affected joint. This approach helps reduce swelling and minimize bleeding in the joint.
Option A (factor VIII concentrates) is a treatment for hemophilia but is typically administered intravenously to replace the deficient clotting factor in the blood. It is not a home treatment for joint injuries.
Option C (nonsteroidal anti-inflammatory drugs - NSAIDs) may be used to manage pain and inflammation, but they do not address the underlying bleeding disorder in hemophilia or directly treat joint injuries.
Option D (DDAVP - synthetic vasopressin) is used in some types of hemophilia to temporarily raise factor VIII levels, but it is not typically used for joint injuries or as a home treatment.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today