Topic 6 - Radioactivity - Treatment For Tumors

Question 1

What type of radiation is commonly used in external treatment of tumours?

Answer 1

Gamma radiation

A wide beam of gamma radiation is utilized to target the tumour.

Question 2

How does external radiation treatment minimize damage to healthy cells?

Answer 2

The beam rotates around the body and focuses on the tumour while only momentarily passing across healthy cells

This technique helps to protect surrounding healthy tissues.

Question 3

How long does it typically take to fully treat a tumour with external radiation?

Answer 3

Around 5 weeks

This treatment requires multiple visits.

Question 4

What is a potential risk associated with external radiation treatment?

Answer 4

Greater risk of long-term side effects

This is due to radiation passing through healthy tissues.

Question 5

What is the method of internal radiation treatment?

Answer 5

Radioactive material is injected directly into the tumour

This method involves using a needle for direct application.

Question 6

What must be considered regarding hospital time during internal radiation treatment?

Answer 6

A longer period in hospital is required due to high radioactivity of some implants

Patients emit radiation and have limited contact with visitors until the source’s activity decreases.

Question 7

Fill in the blank: In external treatment of tumours, the radiation beam _______ around the body.

Answer 7

rotates

This rotating technique helps to focus on the tumour specifically.

Question 8

True or False: Internal radiation treatment allows for unrestricted contact with visitors immediately after the procedure.

Answer 8

False

Limited contact is necessary due to the patient’s emitted radiation.