Preventing indavent exposure

1. GROUP IV PRESENTATION
PREVENTING INADVERTENT
EXPOSURE TO AN EMBRO OR
FETUS… HOW,WHY,WHEN.

2. OUTLINE
• MEANING OF INADVERTENT EXPOSURE
• CONDITIONS CONSIDERED WHEN EXPOSING
• WHAT IS AN EMBRYO?
• DIFFERENCES BETWEEN EMBRYO AND FOETUS
• HOW TO PREVENT INADVERENT EXPOSURE
• WHY TO PREVENT INADVERTENT EXPOSURE
• WHEN TO PREVENT INADVERTENT EXPOSURE
• REFERENCES

3. FACTORS OR CONDITIONS TO BE
CONSIDERED WHEN EXPOSING A
PATIENT
The amount of damage that exposure to radiation depends on several factors,
Incluing:
1). The type of Radiation
2). The dose (amount) of Radiation
3). How you were exposed, Such as through Skin contact, Swallowing or
Breatthing it in, Or having rays pass through the body.

4. INADVERTENT EXPOSURE
Inadvertent exposure is an exposure that does not
result from or achieved through deliberate planning.
• An exposure is considered inadvertent when the
radiation dose is non advantageous… of course the
source of an exposure comes from ionizing radiation..
• All humans are constantly exposed to ionizing radiation
• In the aspect of diagnostic radiography the Specialist
uses REM OR SIEVERT to describe the amount of
radiation dose someone will received thereof… So the
amount of radaition one receive can be advantageous
if it clinically justified.. That when the risk outweighs
the benefits.

5. WHAT IS AN EMBRYO?
The embryo is defined as the developing pregnancy from the time of fertilization until the
end of the eight week of gestation.
DIFFERENCES BETWEEN A FOETUS AND AN EMBRYO
•An embryo refers to the first stage of development of a baby from the moment of
fertilization but after eight weeks of gestation a foetus is formed.
•The embryo is the first thing you notice when you go for a pregnancy test.
• In the embryonic stage organs are formed

6. HOW TO PREVENT INADVERTENT
EXPOSURE
•Choosing the direction of the primary beam so that it
is as far away from the foetus as possible.
•Restricting the x-ray beam size to being small as it is
necessary for all the clinical purpose.
•Selecting appropriate exposure factors

7. MINIMIZING EXPOSURE TO AN
EMBRYO
To minimize the possible exposure to an
embryo in the earliest day of a pregnancy, a
guideline known as the 10-day rule was
recommended by a number of advisory
agencies.

8. WHY PREVENT INADVERTENT
EXPOSURE TO AN EMBRYO
1. The human embryo is sensitive to ionizing radiation at doses
greater than 0.1GY depending on the stage of fetal
development, which also affects the mother when the
exposure dose is greater than 0.5GY.
2. The consequences can include growth restriction,
malformation, impaired brain function, and cancer which is a
genetic mutation which can lead to congenital growth.

9. WHEN TO PREVENT AN
INADVERTENT EXPOSURE
Between two weeks and eighteeneth
week of pregnancy, the foetus are
more sensitive to radiations.