MRCP UK EXAMINATIONS

CARDIOLOGY

PROSTHETIC HEART VALVES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Depending on the degree of intermixing of blood, a patient with d-TGA can show minimal cyanosis to intense blue coloring
A
true
B
false
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Infants with d-TGA can have a bluish looking skin color-called cyanosis-because their blood doesn’t carry enough oxygen. Infants with d-TGA or other conditions causing cyanosis can have symptoms such as: Problems breathing. Pounding heart.

Detailed explanation-2: -When no other heart defects are present it is called ‘simple’ d-TGA; when other defects are present it is called ‘complex’ d-TGA.

Detailed explanation-3: -TGA is a cyanotic heart defect. This means there is decreased oxygen in the blood that is pumped from the heart to the rest of the body. In normal hearts, blood that returns from the body goes through the right side of the heart and pulmonary artery to the lungs to get oxygen.

Detailed explanation-4: -The two common forms of transposition include D-TGA, which presents with cyanosis early in life, and L-TGA, which on the other hand, may permit survival to adulthood without being diagnosed in childhood.

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