Which congenital heart disease causes cyanosis when not repaired? (select all that apply)
Pulmonary atresia
Patent ductus arteriosus (PDA)
Transposition of great arteries
Tetralogy of Fallot
Correct Answer : A,C,D
A. Pulmonary atresia leads to little or no blood flow to the lungs, resulting in severe cyanosis if not surgically repaired.
B. PDA typically causes a left-to-right shunt and does not usually result in cyanosis unless other defects are present.
C. Transposition of the great arteries (TGA) creates parallel circulations, leading to severe cyanosis without mixing of blood.
D. Tetralogy of Fallot is a classic cyanotic heart defect, especially during "tet spells" due to right-to-left shunting.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Digoxin improves cardiac contractility but does not directly assess fluid volume status.
B. A gain of 20g/day is often a normal weight gain in infants; excessive gain is typically considered >50g/day in the context of fluid retention.
C. Daily weights on the same scale at the same time are the most accurate method to assess fluid volume status in CHF.
D. Using a car seat may increase energy expenditure in some infants and is not a routine intervention for CHF.
Correct Answer is A
Explanation
A. Anxiety reduction through the mother's presence can significantly ease respiratory distress and promote comfort in a toddler with LTB.
B. While separation can be stressful, the primary focus in acute LTB is supporting respiratory function.
C. While mothers may experience guilt, the priority is the child's comfort and care.
D. While observation is important, the mother's calming presence is more beneficial for easing anxiety.
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