A nurse is assessing a newborn for manifestations of a large patent ductus arteriosus. Which of the following findings should the nurse expect?
Weak pulses
Cyanosis with crying
Chronic hypoxemia
Systolic murmur
The Correct Answer is D
A. Weak pulses are more indicative of reduced cardiac output or other cardiac issues, rather than specifically a large patent ductus arteriosus (PDA).
B. Cyanosis with crying can occur in various conditions, but it is not a hallmark of a large PDA; it typically presents with other symptoms.
C. Chronic hypoxemia is more associated with severe heart defects or lung conditions, whereas a large PDA may present with other signs first.
D. A systolic murmur is a classic finding in large PDAs due to the left-to-right shunting of blood, making it the most expected manifestation in this scenario.
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Correct Answer is D
Explanation
A. Visualizing the epiglottis with a tongue depressor is contraindicated in suspected epiglottitis due to the risk of triggering airway obstruction.
B. Transporting the child to radiology for a throat x-ray is not a priority and can delay necessary interventions.
C. Obtaining a throat culture is not appropriate in this situation, as airway compromise can occur quickly, and immediate management is crucial.
D. Placing the child in an upright position helps ease breathing and can alleviate distress, which is vital for a child with suspected epiglottitis.
Correct Answer is B
Explanation
A. Tricuspid atresia typically leads to decreased pulmonary blood flow due to the absence of normal blood flow to the lungs.
B. Patent ductus arteriosus results in increased pulmonary blood flow because it allows blood to flow from the aorta to the pulmonary artery, increasing the volume of blood going to the lungs.
C. Coarctation of the aorta can cause decreased blood flow to the lower body, which may not directly relate to increased pulmonary blood flow.
D. Tetralogy of Fallot is characterized by decreased pulmonary blood flow due to right ventricular outflow obstruction, making it not associated with increased pulmonary blood flow.