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Your blood is made up of liquid and solids. The liquid part, called plasma, is made of water, salts, and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells, and platelets.

Red blood cells (RBC) deliver oxygen from your lungs to your tissues and organs. White blood cells (WBC) fight infection and are part of your immune system. Platelets help blood to clot when you have a cut or wound. Bone marrow, the spongy material inside your bones, makes new blood cells. Blood cells constantly die and your body makes new ones. Red blood cells live about 120 days, and platelets live about 6 days. Some white blood cells live less than a day, but others live much longer.

There are four blood types: A, B, AB, or O. Also, blood is either Rh-positive or Rh-negative. So if you have type A blood, it's either A positive or A negative. Which type you are is important if you need a blood transfusion. And your Rh factor could be important if you become pregnant - an incompatibility between your type and the baby's could create problems.

Blood tests such as blood count tests help doctors check for certain diseases and conditions. They also help check the function of your organs and show how well treatments are working. Problems with your blood may include bleeding disorders, excessive clotting and platelet disorders. If you lose too much blood, you may need a transfusion.

NIH: National Heart, Lung, and Blood Institute

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Demographic Information - Blood

Following is the demographic information reported by website visitors for Blood. Information below may include patient demographics as well as data for website visitors who might be researching on behalf of patients e.g. parents for small children. The data below may or may not be reflective of the complete patient population demographics for this medicine.
User gender
27 out of 33 users are male.
Survey Participants: 33
User age
The most common user is 50+ years old.
< 212
Survey Participants: 34
User reported disease
Users most commonly suffer from High blood pressure.
High blood pressure9
Back pain3
Breast cancer2
Sexually transmitted disease (STD)2
Survey Participants: 28
User exercise frequency
Users most commonly exercise once a week.
Once a week14
Twice a week5
Five times a week1
Survey Participants: 31
User smoking habit
37 out of 47 users do not smoke.
Do not smoke37
Survey Participants: 47
User alcohol consumption frequency
Users most commonly reported never consuming alcohol
One drink a day1
Two drinks a day1
More than two drinks a day3
Once a week4
Twice a week0
Once a month3
Survey Participants: 31
User body weight
11 out of 34 users report being overweight.
Not overweight23
Survey Participants: 34
User well-being
7 out of 32 users report having significant pain in the last 3 months.
Significant pain in the last 3 months7
No significant pain in the last 3 months25
Survey Participants: 32
User profession
The most common user profession is Other.
Engineer, IT or Software6
Government service2
Survey Participants: 34

References - Blood

Last updated date

This page was last updated on 6/20/2017.
This page provides information for Blood in English.