A nurse is collecting data from an infant who has a large patent ductus arteriosus. Which of the following is clinical manifestations should the nurse expect?
Cyanosis with crying
Weak pulses
Chronic hypoxemia
Machine-like murmur
The Correct Answer is D
A. Cyanosis with crying: Cyanosis is less common in isolated PDA and more indicative of other congenital heart defects. PDA usually results in increased pulmonary blood flow and may not directly cause cyanosis, especially in less severe cases.
B. Weak pulses: PDA typically causes increased pulmonary blood flow and can result in bounding pulses rather than weak ones. Weak pulses are more indicative of reduced cardiac output, which is not characteristic of PDA.
C. Chronic hypoxemia: Chronic hypoxemia is less associated with PDA and more common in cyanotic heart defects where oxygenated and deoxygenated blood mix. PDA primarily affects the volume of blood flow to the lungs and may not lead to hypoxemia unless complicated by other conditions.
D. Machine-like murmur: A characteristic feature of PDA is a continuous, machine-like murmur caused by turbulent blood flow between the aorta and the pulmonary artery. This murmur is a hallmark sign of PDA and is typically heard during auscultation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Maintain medical asepsis during dressing changes: While cleanliness is important, aseptic (sterile) technique is typically required for burn care to prevent infection.
B. Administer pain medication 30 min to 1 hour before physical therapy: Pain management is crucial to facilitate participation in physical therapy and improve outcomes.
C. Allow the child to set her own schedule for care: A structured schedule is necessary to ensure regular treatment and care for burns.
D. Provide low-calorie snacks: High-calorie, protein-rich foods are necessary to meet increased metabolic demands for healing.
Correct Answer is A
Explanation
A. Heart rate 110/min: A heart rate of 110 beats per minute is within the normal range for a 4-year-old child. The typical heart rate for this age is between 80 to 120 beats per minute.
B. Capillary refill greater than 3 seconds: Capillary refill time should be less than 2 seconds in a healthy child. A refill time greater than 3 seconds may indicate poor perfusion or dehydration, which is abnormal.
C. Weight gain of 0.9 kg (2 lb) in a year: A weight gain of 2 pounds in a year is below the expected range for a 4-year-old. Children in this age group typically gain around 4-5 pounds per year as they grow.
D. Respiratory rate 32/min: The normal respiratory rate for a 4-year-old child is typically between 20 to 30 breaths per minute. A rate of 32/min is slightly elevated and may indicate respiratory distress or other issues.

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