The nurse is caring for a newly-admitted infant diagnosed with "failure to thrive." The nurse begins to implement the healthcare provider prescribed orders by taking blood pressures in all four extremities. Which congenital cardiac defect does the nurse anticipate based on the prescribed order?
Pulmonary atresia
Tetralogy of Fallot
Ventricular septal defect
Coarctation of the aorta
The Correct Answer is D
A. Pulmonary atresia involves a blockage of blood flow to the lungs, but it does not specifically lead to differences in blood pressure in the extremities.
B. Tetralogy of Fallot involves four defects, but it does not directly correlate with differences in blood pressure between the extremities.
C. A ventricular septal defect can cause heart failure, but it typically doesn’t affect blood pressure in the extremities.
D. Coarctation of the aorta is a congenital defect where the aorta is narrowed, leading to higher blood pressure in the upper extremities and lower blood pressure in the lower extremities. This is why blood pressures are measured in all four extremities to identify this condition.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Tetralogy of Fallot involves decreased pulmonary blood flow due to a combination of defects, including pulmonary stenosis.
B. Patent ductus arteriosus (PDA) causes increased pulmonary blood flow due to the abnormal persistence of the ductus arteriosus, leading to a left-to-right shunt and increased blood flow to the lungs.
C. Coarctation of the aorta causes obstructed blood flow, not increased pulmonary blood flow.
D. Tricuspid atresia results in decreased pulmonary blood flow as well due to the lack of a functional tricuspid valve.
Correct Answer is D
Explanation
A. Polyuria is more commonly seen in hyperglycemia, not hypoglycemia, so it is unlikely to be present with a blood glucose level of 55 mg/dL.
B. Dry, flushed skin is typically a sign of hyperglycemia (e.g., in diabetic ketoacidosis), not hypoglycemia.
C. Deep, rapid respirations are a symptom of metabolic acidosis or severe hyperglycemia, not hypoglycemia.
D. Tachycardia is a common compensatory response to hypoglycemia, as the body tries to increase glucose delivery to tissues.
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