An infant is experiencing dyspnea related to patent ductus arteriosus (PDA). The nurse understands dyspnea occurs because blood
Shunted past the pulmonary circulation, causing pulmonary hypoxia
Circulated through the lungs again, causing pulmonary circulatory congestion
Circulated through the ductus from the pulmonary artery to the aorta bypassing the left side of me heart
Shunted past cardiac arteries, causing myocardial hypoxia
The Correct Answer is C
A. Shunted past the pulmonary circulation, causing pulmonary hypoxia: This option is not the primary reason for dyspnea in PDA. While there is shunting, it doesn't directly cause pulmonary hypoxia.
B. Circulated through the lungs again, causing pulmonary circulatory congestion: This option is partially correct but does not address the primary reason for dyspnea, which is the bypassing of the left side of the heart.
C. Circulated through the ductus from the pulmonary artery to the aorta, bypassing the left side of the heart.
In patent ductus arteriosus (PDA), a fetal blood vessel called the ductus arteriosus fails to close after birth. This allows oxygenated blood from the left atrium to be shunted directly from the aorta to the pulmonary artery, bypassing the normal route through the left side of the heart and into the systemic circulation. The shunting of oxygenated blood back into the pulmonary circulation can lead to increased pulmonary blood flow and circulatory congestion, causing symptoms such as dyspnea.
D. Shunted past cardiac arteries, causing myocardial hypoxia: PDA primarily affects the pulmonary circulation and left side of the heart, not the coronary arteries. Myocardial hypoxia is not the primary mechanism of dyspnea in PDA.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Prevent ear infections: While individuals with cleft palates are at increased risk of ear infections, the primary immediate goal is not ear infection prevention.
B. Establish feeding and sucking.
Clefts of the soft palate can make it challenging for the baby to create a proper seal for sucking and feeding. Ensuring that the baby can feed effectively is a crucial initial goal. This may involve special nipples, bottles, or breastfeeding techniques to help the baby get proper nutrition.
While eventually repairing the cleft palate is an important part of the overall care plan, the immediate goal is to ensure that the baby can feed and gain weight properly.
C. Repair the cleft palate: Surgical repair of the cleft palate is typically done when the child is older. The immediate concern for a newborn is feeding.
D. Help the mother bond with the baby: This is an important aspect of care but not the primary goal for the baby's health and well-being. Bonding can occur while addressing the baby's feeding needs.
Correct Answer is A
Explanation
A. Bone marrow transplantation.
Severe aplastic anemia is a condition characterized by a significant reduction in the number of blood cells produced by the bone marrow. The primary treatment for severe aplastic anemia is a bone marrow transplantation, also known as a stem cell transplant. This procedure involves replacing the patient's dysfunctional bone marrow with healthy bone marrow or stem cells from a suitable donor. This is done to restore normal blood cell production.
Option B (Exchange transfusion) is not the primary treatment for severe aplastic anemia but may be used in certain cases to manage complications or specific symptoms.
Option C (Liver transplantation) is not a treatment for severe aplastic anemia, as this condition primarily affects the bone marrow and blood cell production.
Option D (Administration of intravenous immunoglobulin) is not the primary treatment for severe aplastic anemia but may be used in some cases to manage complications, such as infections. However, it does not address the underlying cause of the disease, which is the failure of the bone marrow to produce enough blood cells.
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