Q25 of 30 Page 1

For the past some time, Aarti had been observing some erratic body movement, unsteadiness and lack of coordination in the activities of her sister Radha, who also used to complain of severe headache occasionally. Aarti suggested to her parents to get a medical check-up of Radha. The doctor thoroughly examined Radha and diagnosed that she has a brain tumour.

(a) What, according to you, are the values displayed by Aarti?


(b) How can radioisotopes help a doctor to diagnose brain tumour?

a) Aarti is good human-being and she has shown values by carefully observing the behavior of her sister and telling her parents to consult a doctor


b) Radio isotopes (very small amounts) are injected into the blood stream of the person under observation. Then X-ray photography is done of the brain which show area developing a tumor as the radioisotope present in the blood gets accumulated in the area having tumor.


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