A father asks why his child with Tetralogy of Fallot seems to favor a squatting position. What is the nurse's best response?
Squatting increases the return of venous blood flow to the heart.
Squatting in common resting position when a child is tachycardic
Squatting decreases arterial blood flow away from the heart.
Squatting increase the workload of the heart.
The Correct Answer is A
A. Squatting increases the return of venous blood flow to the heart: Squatting increases systemic vascular resistance and venous return, which helps to increase oxygenation in children with Tetralogy of Fallot, as it reduces the right-to-left shunting and increases blood flow to the lungs.
B. Squatting in common resting position when a child is tachycardic: While squatting can be used to manage symptoms, this answer is misleading as squatting specifically helps in increasing blood flow and decreasing the symptoms of cyanosis in Tetralogy of Fallot, not just during tachycardia.
C. Squatting decreases arterial blood flow away from the heart: Squatting actually increases blood flow to the heart and lungs by increasing systemic vascular resistance.
D. Squatting increases the workload of the heart: Squatting helps reduce the workload on the heart in Tetralogy of Fallot by improving oxygenation and decreasing cyanosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Ice Hockey: Cold temperatures and physical exertion can trigger a sickle cell crisis by causing vasoconstriction and hypoxia.
B. Tackle American Football: High-impact, strenuous activities increase oxygen demand, putting the child at risk for a crisis.
C. Art Club: A non-strenuous activity that avoids physical strain, dehydration, or extreme temperatures, making it safe for children with sickle cell anemia.
D. Basketball: While it’s not as physically demanding as some sports, it still involves moderate to intense exertion, which could precipitate a crisis.
Correct Answer is A
Explanation
A. Upright: In an upright position, gravity helps expand the lungs, allowing for maximal ventilation and improved oxygenation. This position helps the diaphragm move downward and increases lung volume, making it easier to breathe.
B. Side-lying: Side-lying positions may be helpful in certain situations, such as in cases of aspiration pneumonia, but they do not provide the best lung expansion for respiratory failure.
C. Supine: Lying flat on the back can increase the work of breathing and make it harder for the lungs to fully expand, especially in a child with respiratory distress.
D. Prone: The prone position is sometimes used in cases of acute respiratory distress syndrome (ARDS) in adults, but it is not commonly recommended for children with pneumonia unless specifically ordered by the healthcare provider.
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