A) (A) During open heart surgery blood is circulated in the heart-lung machine. (B) Blockage in coronary arteries is removed by angiography. (C) Computerized Axial Tomography (CAT) shows detailed internal structure as seen in a section of body. (D) X-ray provides clear and detailed images of organs like prostate glands and lungs. Which two of the above statements are correct? B and D
B) C and D
C) A and C
D) A and B
Correct Answer: C
Solution :
It is almost impossible to repair intracardiac defects surgically while, the heart is still pumping. Therefore, many types of artificial lung machines have been developed to take the place of heart and lungs during' the course of operation. Angiography is radiographic visualization of blood vessels of a region/organ after injecting a radio-opaque/contrast agent computerized axial tomography (CAT) shows detailed internal structures as seen in a section of body (eg, iodine) or fluorsocopic chemical. Digital subtraction angiography is an imaging technique that produces clear views of flowing blood iri'vessels and indicates the presence of blockage. X-rays have a remarkable ability to penetrate materials, which do not transmit visible light. X-rays imaging is commonly employed for diagnosing disease of heart, lungs and bones.
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