Using an Imaging Technique Such as Positron Emission Tomography (PET)to

question 73

Multiple Choice

Using an imaging technique such as positron emission tomography (PET) to detect cancer has all the advantages described EXCEPT:

• A)the image will be clearer than one derived from X-rays or CAT scans
• B)PET data can quantify the level of metabolic activity possessed by the tumor cells which may be useful in determining the rate of tumor growth
• C)PET data can predict the next area likely to be invaded by the tumor as it expands or the region to which stray tumor cells may move (metastasize).
• D)PET data can determine the size and shape of the tumor

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Definitions:

Platelets

Small blood cells essential for blood clotting and preventing bleeding.

Agglutination

The clumping together of cells or particles, commonly observed in blood cells in response to certain antibodies, which can be a basis for blood typing.

Factor XIII

A plasma enzyme that plays a key role in blood coagulation through its action in stabilizing the formation of a blood clot.

Prothrombin

Glycoprotein present in blood that, in the presence of prothrombin activator, is converted to thrombin.