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","D"]
Explanation
A. Inwardly turned foot on the affected side.
This finding is consistent with DDH. In infants with DDH, the affected leg may appear shortened and rotated inwardly due to hip instability or dislocation.
B. Lengthened thigh on the affected side.
This finding is not typically associated with DDH. In fact, the affected thigh may appear shortened rather than lengthened due to abnormal positioning of the hip joint.
C. Absent plantar reflexes.
Absent plantar reflexes are not directly related to DDH. Plantar reflexes assess the function of the spinal nerves in the lower extremities and are not typically affected by hip dysplasia.
D. Asymmetric thigh folds.
This finding is consistent with DDH. Asymmetric thigh folds, where one thigh appears fuller or has more skin folds compared to the other, can be indicative of hip dysplasia. The skin folds may be more prominent on the unaffected side due to the displacement of the femoral head on the affected side.

Correct Answer is B
Explanation
A. Applying suction for 20 seconds:
Suctioning for 20 seconds is within the recommended duration for endotracheal suctioning in children. It allows adequate time for removing secretions without causing excessive trauma to the airway.
B. Introducing the catheter without suction:
This action is incorrect. When performing endotracheal suctioning, the catheter should be introduced into the endotracheal tube while applying suction. Introducing the catheter without suction may not effectively remove secretions and can lead to ineffective suctioning.
C. Rotating the catheter between the thumb and forefinger while suctioning:
Rotating the catheter between the thumb and forefinger while suctioning helps to prevent the catheter from sticking to the airway walls and facilitates the removal of secretions. This action is appropriate and helps ensure effective suctioning.
D. Allowing the child to rest for 30 to 60 seconds between suctioning passes:
Allowing the child to rest between suctioning passes helps minimize hypoxia and discomfort during the procedure. This action is appropriate and ensures that the child has adequate time to recover before the next suctioning pass.
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