The nurse knows which congenital cardiac defect is characterized by a mixing of well-oxygenated blood with poorly oxygenated blood.
Hypoplastic heart syndrome
Atrioventricular canal defect
Tetralogy of Fallot
Coarctation of the aorta
The Correct Answer is B
A. Hypoplastic heart syndrome: Characterized by underdevelopment of the left side of the heart, not mixing of blood.
B. Atrioventricular canal defect: An atrioventricular canal defect allows oxygenated and deoxygenated blood to mix due to the presence of a common atrioventricular valve and defects in the atrial and ventricular septa. This defect results in a mixture of oxygenated and deoxygenated blood, which can cause varying levels of oxygenation in the blood delivered to the body.
C. Tetralogy of Fallot: Involves a ventricular septal defect leading to right-to-left shunting, but not a direct mixing of oxygenated and deoxygenated blood.
D. Coarctation of the aorta: Involves narrowing of the aorta, not mixing of oxygenated and deoxygenated blood.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Keep eye shields on at all times, including when feeding. Incorrect because while eye protection is crucial under the lights, they can be removed during feedings to allow for parent-infant bonding and eye contact.
B. Routinely monitor temperature while the infant is in the crib. Incorrect, because temperature should be closely monitored while the infant is under phototherapy due to potential changes in body temperature caused by the exposure.
C. Tightly swaddle the infant in a blanket. Incorrect, as this would reduce the amount of skin exposed to the phototherapy lights and decrease the treatment's effectiveness.
D. Expose as much of the infant's skin to the lights as possible. Phototherapy is most effective when as much skin as possible is exposed to the lights because it allows for maximum light absorption and more effective bilirubin breakdown.
Correct Answer is ["6"]
Explanation
Heart rate (110/min): 2 points
Respiratory effort (slow, weak cry): 1 point
Muscle tone (some flexion of extremities): 1 point
Reflex irritability (grimace): 1 point
Color (body pink, blue extremities): 1 point
APGAR-6
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