For the past some time, Aarti had been observing some erratic body movement, unsteadiness and lack of Radha, who also used to complain of sever 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.
What, according to you, are the values displayed by Aarti?
How can radioisotepes help a doctor to diagnose brain tumour?

Explanation

(a) Values displayed by Arti are:
(i) Concern towards others
(ii)Awareness about basic sciences.
(iii) Keen observation
(iv) Tendency to consult parents in important affairs.
(b) Radiosotpes can be used to identify brain tumors using imaging techniques like `P.E.T` (Positron Emission Tomography)
Tumors cells exhibit different effinity towards radioisotopes and are thus detected by the imaging technique.