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 B
Explanation
A. Cyanosis with crying: Cyanosis is typically seen in cyanotic heart defects, not in PDA, which is acyanotic.
B. Machine-like murmur: Characteristic of PDA due to continuous blood flow between the aorta and pulmonary artery.
C. Chronic hypoxemia: PDA usually leads to left-to-right shunting, not hypoxemia.
D. Weak pulses: Pulses are typically bounding due to increased blood flow, not weak.
Correct Answer is C
Explanation
A. Temporal: The temporal pulse is difficult to palpate accurately in infants, so it is not the most reliable site to assess the pulse.
B. Dorsalis pedis: The dorsalis pedis pulse is located in the foot and is not as reliable for infants, as it can be difficult to palpate, especially in younger infants.
C. Apical: The apical pulse is the most reliable site to assess pulse in infants, as it is easily accessible and is directly over the heart. This is the preferred site for infants under 2 years old.
D. Carotid: The carotid pulse is sometimes used in emergencies but is not the most reliable or common site for routine pulse checks in infants, as it can be difficult to assess in younger infants.
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