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Sherpath- Congenital heart disease (answers 2024).
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Sherpath-Congenital
heart disease
(answers 2024)
What is the relationship between left-to-right shunt congenital
heart defects and increased pulmonary blood flow? - answer
Volume overload results in the right side of the heart and this
increases pulmonary blood flow.
Volume shunts from the left to the right side of the heart
resulting in right-sided volume overload. The increase in volume
leads to an increase in pulmonary blood flow.
,The mother of a child with tetralogy of Fallot states that over
the past two weeks the child has been experiencing periodic
episodes of increased cyanosis, irritability, and moments of
deep breathing in the morning. After child is assessed and vitals
appear stable what is the most important action for the nurse
to take next? - answer Left-to-right shunting will cause volume
overload on the heart. Contact the providers as the child is in
need of a surgery consult.
Left-to-right shunting will increase the volume on the right side
of the heart, resulting in both volume and pressure overload.
This child is experiencing "tet spells" that include episodes of
increased cyanosis with crying, deep respirations, and other
abnormal breathing patterns, and increased pulmonary venous
return. This evidence of increased hypoxia leaves the child at
risk for cerebrovascular accident. Surgical consult is necessary.
Which statement helps to explain why a patient with Down
syndrome might have a marked increase in pulmonary blood
flow? - answer Patients with Down syndrome often have
cardiac defects associated with the genetic syndrome. The
patient may have an atrioventricular septal defect (AVSD).
, AVSD (atrioventricular septal defect) is often associated with
genetic syndromes such as Down syndrome. In AVSD there is
abnormal development of both septa and AV valves. Left-to-
right shunting increases pulmonary blood flow.
What is the benefit of maintaining a patent ductus arteriosus
(PDA) for a child with tetralogy of Fallot? - answer PDA will help
to maintain the pulmonary blood flow.
Tetralogy of Fallot is associated with pulmonary stenosis and
right ventricular outflow tract obstruction. This leads to a right-
to-left shunt. Maintaining the PDA will create an alternative
pathway for blood to take to the lungs and therefore help to
oxygenate blood and reduce hypoxemia experienced by the
child.
Which statement explains the appearance of cyanosis in an
individual with polycythemia secondary to congenital heart
disease (CHD)? - answer Cyanosis will appear in the presence
of higher oxygen saturation levels (less desaturated) than
normal.
In children with polycythemia, cyanosis will appear when
hemoglobin is less desaturated.
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