Which among the following is a medical condition in which there is a connection between the pulmonary artery… - AIIMS Raipur NO - 2019 (Shift-2)

AIIMS Raipur NO - 2019 (Shift-2)

Child Health Nursing (Pediatrics)

Easy

Appeared in: AIIMS Raipur NO - 2019 (Shift-2)

Explanation

Patent Ductus Arteriosus (PDA) is a congenital condition where a fetal blood vessel connecting the pulmonary artery and the aorta fails to close after birth.
This creates a persistent channel between these two major arteries, as correctly identified in the question and shown in the diagram.
The result is a left-to-right shunt, where oxygenated blood from the higher-pressure aorta flows into the pulmonary artery, increasing pulmonary blood flow.
This condition is characterized by a continuous 'machinery-like' murmur.

Option B: Transposition of the Great Arteries (TGA) involves the incorrect anatomical placement of the aorta and pulmonary artery; they are switched, with the aorta arising from the right ventricle and the pulmonary artery from the left. It does not describe a connection between them.
Option C: An Atrial Septal Defect (ASD) is a hole in the septum (wall) that separates the two upper chambers of the heart (the left and right atria). It is not a connection between the aorta and pulmonary artery.
Option D: A Ventricular Septal Defect (VSD) is a hole in the septum that separates the two lower chambers of the heart (the left and right ventricles). It does not involve a connection between the great arteries.

Visual 1: Diagram: The provided image clearly illustrates the anatomical location of the Patent Ductus Arteriosus connecting the aorta and pulmonary artery.
Visual 2: Flowchart: A comparison of fetal circulation (with open ductus arteriosus) versus normal neonatal circulation (with closed ductus arteriosus/ligamentum arteriosum).
Visual 3: Illustration: A comparative chart showing the four different heart defects mentioned in the options (PDA, TGA, ASD, VSD) to visually differentiate their locations.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Congenital Heart Defects as background academic context rather than a clinical decision trigger.
A key nursing assessment for PDA is auscultating for the characteristic continuous 'machinery-like' murmur, typically best heard at the left upper sternal border or left infraclavicular area.
Nurses must monitor for signs of heart failure in infants with a large PDA, such as poor feeding, rapid breathing (tachypnea), and failure to thrive.
In preterm infants, nurses may administer prostaglandin inhibitors like indomethacin or ibuprofen as prescribed, monitoring for potential side effects such as renal dysfunction or gastrointestinal bleeding.

How to Approach the Question

First, identify the key anatomical structures mentioned in the question: a 'connection between the pulmonary artery and aorta'.
Next, carefully examine the provided image. The diagram explicitly shows a vessel connecting the aorta and the pulmonary artery and labels it 'Patent ductus arteriosus'.
Compare this visual information with the given options. 'Patent ductus arteriosus' is listed as the first option.
To confirm, mentally recall or deduce the definitions of the other options. TGA involves switched arteries, while ASD and VSD are holes in the heart's internal walls (septa), not connections between the great arteries.
This process of using both the text and the visual aid leads directly to the correct answer.

Concept Tested & Keywords

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