1) Greece has a population of 10,46 million people. What is percentage of people who should donate regularly in order to achieve sufficiency? a) 30% b) 13% c) 3% 2) Does blood have an expiry date? a) Yes b) No 3) How many lives can one blood donation save? a) 1 b) 3 c) 5 4) How long does a blood donation last? a) 30 minutes b) 1 hour c) 10 minutes 5) What are the main reasons why people are reluctant to donate blood a) fear b) ignorance c) both fear and ignorance 6) What is the greatest motive for blood donation in Greece? a) altruism b) need c) empathy 7) What is the anerage age of blood doners? a) 18-65 b) 12-50 c) 25-60 8) Every how many minutes does one fellow human being need blood? a) every 30 minutes b) enery 2 minutes c) every 10 minutes 9) What is the percentage of the population that will need blood transfusion some time in their lives? a) 50% b) 10% c) 75% 10) One unit of blood (like the one we donate at a single blood donation) weighs about:  a) 1 lt b) 450 ml c) 100 ml 11) How many litres of blood does an average adult have? a) about 15 b) about 5 c) about 10 12) Which are the soldiers of our organisms? a) red blood cells b) white blood cells c) blood plasma d) blood platelets 13) Is there a substitude for blood? a) Yes b) No 14) How many main blood types are there? a) 2 b) 4 c) 6 15) Are all the blood types compatible among them? a) Yes b) No 16) How many times a year can someone donate blood? a) 1 time b) 4 times c) 3 times 17) Can each and every one of us become a blood donor? a) Yes b) No

Blood Donation

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