Ever donated blood? You might have, at least in your college days. Finding the needy, or visiting the hospital as a volunteer donor, the proud moments of blood donation and a tea and Parle-G biscuits following it, comprises the memories of blood donation…
But, have you ever thought beyond that, thought about the sanctity of your act and yourself? Don’t worry, I will make you do so, through this article… Go on, read it completely.
A single unit of blood you donated may save three lives! Yes, you don’t need to be a doctor to save someone’s life and to get adorned as their incarnated God. Your blood is made up of several components like red blood cells, Plasma and Platelets. The medical officers will separate these components from the donated blood, so that a single unit of blood can be used for 3 patients, serving their particular function.
How long the blood cells live?
The separated elements of blood definitely have its expiry, which varies from days to years. Due to this short shelf-life of blood components, blood banks need to recharge their banks, constantly to ensure availability all the time. Below is the life span of components in a donated blood.
Ø Platelets can be stored for up to 7 days
Ø Red blood cells can be stored for up to 5 weeks
Ø Plasma lives long, up to 3 years
Who can be a donor?
Every healthy person can save someone’s life, donating their blood. But make sure you satisfy the following criteria:
Ø Should weigh above 50 kg.
Ø Ageing between 18 – 66 years.
Ø Under normal blood pressure, while donating blood.
Ø Men can donate their blood once in every three months.
Ø Women can donate their blood once in every four months.
Ø Should be free from communicable diseases like HIV/AIDS, HTLV or hepatitis.
Don’t worry much; the medical officer will take a check before accepting your blood.
How can you match the blood groups?
Though A, B, O and AB are the most common blood groups; there exist A- B- O- and AB- blood groups too, as rare blood groups. This variation demands high care while transfusing blood, since every blood group doesn’t match each other. Following are the matching blood groups:
Ø O- is the universal donor, they can receive blood from O- only.
Ø AB+ is the universal receiver. God’s grace, they can receive blood from any group. But they can donate to someone with same blood group, to AB+ only.
Ø A+ can donate blood to both A+ and AB+ and can receive from A+ A- O+ O-
Ø B+ can donate blood to B+ and AB+, and can receive from B+, B-, O+, O-
Ø O+ can donate blood to all O+, A+, B+ and AB+ but can receive only from O+ and O-
Ø A- can donate to a whole lot blood groups like, A+ A- AB+ AB- but can receive two groups only, from A- and O-
Ø B- can donate their blood to B+ B- AB+ AB- but can receive only from B- and O-
Ø AB- can donate their blood to both AB+ and AB-, whereas it can receive from AB- A- B- and O-
Know these facts too
Ø Every two seconds and someone needs blood, raising a demand for more than 38,000 blood donations a day.
Ø Donors can also have blood drawn for their own future use. This is known as an autologous donation.
Ø The amount of blood withdrawn varies from 350ml- 450ml. It normally takes 24hrs for the blood volume to be replaced. And red cells get replaced in about 6 weeks.
Pic Courtesy : Google