Do You Know the
Amount of Blood in Human Body
Do you know the average adult heart beats
more than 2.5 billion times during a lifetime?
It beats 3,600,000 times a year, 100,000
times a day and 72 times a minute.
Even though the overall weight of an average
adult heart is only 11 ounces, it is capable of pumping 2,000 gallons of blood
that travels through 60,000 miles of blood vessels every day.
The amount of blood in human body that the
heart pumps every minute may vary from person to person, but it is usually
between 5 to 30 liters per minute.
Many people ask exactly how much blood they
have in their bodies. It is a common question, so let's find out the answer.
Do You Know the Normal Amount of
Blood in Human Body?
The blood volume usually varies from person
to person, depending on their body size and their state of hydration.
The volume of the cellular elements in the
blood will also have an impact on how much blood you have in your lungs, heart,
veins, organs and arteries.
A typical adult usually has about 5 liters of
blood. And normally, females will have less blood volume as compared to men.
It is possible to calculate blood volume (BV)
if you know HC or hematocrit, which is the fraction of blood that is red blood
cells, and plasma volume (PV).
Here's the formula:
BV=PV / (1 –
HC)
Check out the calculator here the calculator
here to
figure out the specific amount of blood in a particular person depending on the
weight, age, gender, etc.
Other FAQs That You May Want to
Know
Once you know the overall amount of blood in
human body, you may have some other questions as well. For instance:
How Does Exercise Affect Blood Flow?
Several factors, such as cardiac output,
physical activity and venous return can affect the rate and distribution of
blood through your circulatory system.
With exercise, your metabolism will increase
and your muscles will need more oxygen. This will make your heart beat faster
to supply your muscles with all the oxygen they need. This, in turn, will
increase the speed of blood flow.
At rest, your muscles will be receiving only
20% of blood, whereas the blood flow will increase to 80% during exercise.
Can I Bleed to Death?
You can die if you lose half or two-third of
your blood, but how much blood can you bleed usually depends on your health,
age and fitness level.
Normally, if you lose one-third of your blood
volume, you will be in a serious condition and any more loss will lead to
death. The loss of blood cells isn't that dangerous, but the sudden drop in
circulation can prove extremely dangerous.
Does Your Blood Have Gold?
It really is! You have about 0.2 mg of gold
in your body within your blood. It is so little that it would take about 40,000
people to bleed out completely to make an 8-gram souvenir.
Pregnant Women Have More Blood?
If you're pregnant, you have about 50% more
blood when you reach 20th week as compared to the amount of blood you had
before pregnancy.
This increased blood volume supports the
uterus and placenta. And at the end of a pregnancy, the uterus usually takes up
about 1/5 of a woman's pre-pregnancy blood volume.
How Much Blood Can I Donate?
Just like asking about the total amount of
blood in human body, many people also ask about the amount of blood they can
donate in one session.
Each unit of blood donated is about 450-500
ml. You can donate blood if you're between 17 and 75 years of age and are
healthy. If your body weight is 110 pounds or more, you can donate about 500 ml
blood in 8 weeks.
Interesting, Encouraging Stories of Blood
Donation
·
James Harrison
needed 13 liters of blood for a surgery when he was only 13. He pledged to
donate blood once he was 18. When he did, it turned out that his blood contained
a rare antigen required to cure Rhesus disease. Until today, he has donated
blood more than 1,000 times and saved up to 2,000,000 lives.
·
A Green Bay
Packers fan used to donate his blood every time he needed to buy a ticket, but
he later discovered that the only way he could live was to donate blood because
some wired disease. The game was actually a life savior from him!
·
Saddam Hussein
asked a Quran to be written in his own blood. Muslim leaders are now in a fix
because it is a sin to write the Quran in blood but it is also a sin to destroy
the Quran.
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http://www.newhealthadvisor.com/Amount-of-Blood-in-Human-Body.html
Calculate Estimated Blood Volume in the Human Body by using the Medical Calculator from PediatricOncall:- https://www.pediatriconcall.com/calculators/estimated-blood-volume
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