FREE NEET PG MCQ on 3 Oct 2016

Neet Pg

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 DAILY FREE MCQ CHALLENGE for Medical PG Preparation

Question
Presence of a continuous machinery murmur on auscultation of over the left upper sternal border gives a clue to the diagnosis of which of the following congenital heart disease?

A. TOF
B. TGV
C. PDA
D. TAPVC

TIPSImportant Question from NEET PG

Answer : C. PDA
Explanation : 

Physical findings in a child with patent ductus arteriosus includes widened pulse pressure and a continuous machinery murmur heard best along the left upper sternal border.

Other features of PDA includes:

  • The ductus communicates between the main pulmonary artery and the proximal descending thoracic aorta.
  • Normally ductal closure occur 12-24 hours following birth, after that it becomes a fibrous cord known as the ligamentum arteriosum.
  • The incidence is much higher in premature infants
  • Chest X ray shows increased pulmonary vascular markings and left heart enlargement.
  • ECG shows left ventricular hypertrophy and left atrial enlargement.
  • Echocardiography is the diagnostic method of choice.


Reference : 
Chapter 19. The Heart: II. Congenital Heart Disease. In: Doherty GM. eds. CURRENT Diagnosis & Treatment: Surgery, 13e.


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