A nurse is collecting data from an infant a large patent ductus arteriosus. Which of the following is clinical manifestations should the nurse expect?
Machine like murmur
Chronic hypoxemia
Cyanosis with crying
Weak pulse
The Correct Answer is A
A. Machine-like murmur.
This option is correct. A characteristic clinical manifestation of a large patent ductus arteriosus is a continuous "machine-like" murmur heard on auscultation. This murmur is typically heard best at the upper left sternal border and may radiate to the back.
B. Chronic hypoxemia.
Chronic hypoxemia is not typically a primary manifestation of a large PDA. While PDA can lead to increased pulmonary blood flow and potentially contribute to pulmonary congestion, chronic hypoxemia may not be a prominent feature unless complications such as heart failure develop.
C. Cyanosis with crying.
Cyanosis with crying is more commonly associated with cyanotic congenital heart defects such as tetralogy of Fallot. While PDA can contribute to cyanosis in certain circumstances, it is not typically a consistent clinical manifestation.
D. Weak pulse.
A weak pulse is not typically associated specifically with a large PDA. Infants with PDA may have bounding pulses due to increased blood flow through the ductus arteriosus.
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Related Questions
Correct Answer is A
Explanation
A. Apical:
The apical pulse is the most reliable location to assess the pulse in infants. It is located at the apex of the heart, which is typically found at the fifth intercostal space at the midclavicular line. Assessing the apical pulse allows for a direct measure of the heart rate and rhythm, which is especially important in infants to evaluate cardiac function accurately. The apical pulse is commonly assessed using a stethoscope placed at the point of maximum impulse (PMI) on the chest.
B. Dorsalis pedis:
The dorsalis pedis pulse is located on the top of the foot, typically in the region between the first and second metatarsal bones. While the dorsalis pedis pulse can be palpated in older children and adults, it may be difficult to palpate accurately in infants, especially those with smaller or more delicate feet. Therefore, it is not the preferred site for pulse assessment in infants.
C. Temporal:
The temporal pulse is located on the side of the head, just above the ear. While the temporal pulse can be palpated in some individuals, it is not typically used to assess the pulse in infants. Palpating the temporal pulse in infants may be more challenging and less reliable compared to other pulse sites, especially given the smaller size of the temporal artery in infants.
D. Carotid:
The carotid pulse is located in the neck, alongside the trachea, and can be palpated by gently pressing the fingers against the carotid artery. While the carotid pulse is easily palpable in adults and older children, it is not typically the preferred site for pulse assessment in infants. Palpating the carotid pulse in infants carries a risk of injury to the delicate structures in the neck and may not provide an accurate representation of the pulse rate.
Correct Answer is C
Explanation
A. Obtain a throat culture.
This option is not appropriate as a primary nursing action in the acute management of epiglottitis. While obtaining a throat culture may be necessary for diagnostic purposes, it is not a priority in the immediate care of a child with suspected epiglottitis. The focus should be on ensuring airway patency and providing emergency treatment.
B. Visualize the epiglottis using a tongue depressor.
This option is contraindicated in the acute management of epiglottitis. Direct visualization of the epiglottis using a tongue depressor or other instruments can provoke spasm of the epiglottis and worsen airway obstruction. Attempting to visualize the epiglottis should be avoided until the child's airway has been secured in a controlled environment, such as in the operating room under anesthesia.
C. Provide moist air to reduce the inflammation of the epiglottis.
This option is appropriate. Providing moist air, such as humidified oxygen or a cool mist, can help soothe the inflamed tissues of the epiglottis and upper airway. Moist air may help alleviate discomfort and reduce inflammation, although it will not directly address the risk of airway obstruction. It is often used as supportive therapy in conjunction with other interventions.
D. Initiate airborne precautions.
This option is not necessary for the care of a child with epiglottitis. Epiglottitis is not typically transmitted through airborne droplets. The priority in the management of epiglottitis is ensuring a patent airway and providing appropriate treatment to reduce inflammation and prevent complications.
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