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 that they 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 a brain tumour?
(a) What, according to you, are the values displayed by Aarti?
(b) How can radioisotopes help a doctor to diagnose a brain tumour?
Answer: (a) Awareness, concern, responsibility.
(b) Radioisotope uptake detected externally maps the tumour.
Solution
(a) Aarti shows awareness, concern, a sense of responsibility and care for her sister's health, and the good sense to seek timely medical help.
(b) A suitable radioisotope (for example technetium-99m) is introduced into the body; it is taken up preferentially by the abnormal tumour tissue. The -radiation it emits is detected externally, and from the pattern/intensity of radiation the doctor can locate the tumour and judge its size.
(b) A suitable radioisotope (for example technetium-99m) is introduced into the body; it is taken up preferentially by the abnormal tumour tissue. The -radiation it emits is detected externally, and from the pattern/intensity of radiation the doctor can locate the tumour and judge its size.
CBSE Class 12 Board · 2014 · Subjective