Question

A series of contrast runs through the poem such as "lighe-dark. frowningsmiling, bittersweet and doubt-trust. Explain any TWO SE these contrasts in context. ​

Answer 1

Explanation:

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Answer 2

Answer:

When a physician needs to understand what is happening inside our bodies, they often request that a patient undergo an imaging exam. Imaging exams such as x-rays, ultrasound, computed tomography (CT), magnetic resonance (MRI), and fluoroscopy are selected based on their ability to show specific information about the structures within the body. Contrast materials, also known as contrast agents and contrast media are used to improve the diagnostic value of those imaging exams.

Contrast materials are not dyes that permanently discolor internal organs. They are substances that temporarily change the way x-rays or other imaging tools interact with the body. The materials discussed in this article do not produce radiation.

When introduced into the body prior to an imaging exam, contrast materials make certain structures or tissues in the body appear different on the images than they would if no contrast material had been administered. Contrast materials help distinguish or "contrast" selected areas of the body from surrounding tissue. This helps physicians diagnose medical conditions by improving the visibility of specific organs, blood vessels, or tissues.

Contrast materials enter the body in one of three ways. They can be:

swallowed (taken by mouth or orally)

administered by enema (given rectally)

injected into a blood vessel (vein or artery; also referred to as being given intravenously or intra-arterially)

Following an imaging exam with contrast material, the material is absorbed by the body or eliminated through urine or bowel movements.

There are several types of contrast materials:

Iodine-based and barium-sulfate compounds are used in x-ray and computed tomography (CT) imaging exams.

Contrast materials can have a chemical structure that includes iodine, a naturally occurring chemical element. These contrast materials can be injected into veins or arteries, within the disks or the fluid spaces of the spine, and into other body cavities.

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