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 C
Explanation
A. Continuing to offer a special formula to limit gagging is not a standard approach in the care of infants with cerebral palsy. The choice of formula should be based on the child's nutritional needs, and any feeding difficulties should be addressed by a healthcare professional.
B. Maintaining immobility of the limbs with splints is not recommended. Encouraging movement and mobility is important for the development and well-being of children with cerebral palsy.
C. Preserve muscle tone to prevent joint contractures.
Cerebral palsy is a condition that can lead to problems with muscle tone and movement. Preserving muscle tone is important to prevent joint contractures, which can limit mobility and cause pain. Physical therapy and exercises can help maintain muscle tone and joint flexibility in children with cerebral palsy.
D. Focusing on cognitive rather than motor skills is not appropriate. Motor skills are a crucial aspect of development for children with cerebral palsy. The approach should encompass both cognitive and motor skill development as appropriate for the child's age and abilities.
Correct Answer is ["A","B","C","E"]
Explanation
A. Monitoring level of consciousness (LOC): Monitoring the child's level of consciousness is essential as changes in LOC can be an important indicator of the progression of meningitis.
B. Administration of IV antibiotics: Antibiotics are a critical component of the treatment for bacterial meningitis. Early administration of appropriate antibiotics is crucial to control the infection.
C. Decreasing environmental stimuli: Reducing environmental stimuli, such as noise and light, can help minimize discomfort and agitation in a child with meningitis.
D. Increasing IV fluids above maintenance is not typically part of the standard management of bacterial meningitis. Maintaining hydration and electrolyte balance is important, but increasing fluids significantly above maintenance may not be necessary and should be determined based on the child's clinical condition.
E. Instituting droplet precautions: Bacterial meningitis is contagious, and it is important to isolate the child and implement appropriate infection control measures, including droplet precautions, to prevent the spread of the infection to others.
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