This question was attempted by many candidates and their performance was fair. In part (a) candidates correctly stated instances in which an individual would not be allowed to donate blood. In part (b) many candidates mentioned wrong answers as streams, rivers, rain water, lake and ponds as natural sources of pure water.
The expected answers are as follows:
2(a) INSTANCES WHEN AN INDIVIDUAL MAY BE DISALLOWED
FROM DONATING BLOOD
- if the donor is anaemic/PCV/packed cell volume is low
- if the donor is sick
- if the donor is currently menstruating
- if the donor’s blood is diseased / named e.g (HIV, HBP etc)
- if the donor is a nursing/lactating mother
- if the donor is a pregnant woman
(b) NATURAL SOURCES OF PURE WATER
- borehole
- deep well
- spring
- artesian well |