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What You Need to Know About Blood Plasma and Donating It

Blood plasma is an important component of a person’s blood, making up about half of it. It plays an essential role in a person’s health, helping to fight off infection, balance their blood pH levels, aid in clotting, and transport and eliminate waste. Donating blood plasma can be a lifesaving act and help many people suffering from infections or illnesses.

What Does Blood Plasma Contain?

Blood contains a yellowish liquid, blood plasma, which makes up around 55 percent of its volume. Apart from its 91 to 92 percent water content, the plasma consists of proteins, coagulants, electrolytes, and immunoglobulins. Plasma proteins, such as globulin and albumin, help to regulate pressure in the circulatory system. 

Coagulants, like fibrinogen, are responsible for clotting, essential for slowing down bleeding. Electrolytes, like potassium, sodium, calcium, chloride, and bicarbonate, help regulate blood pH levels. Lastly, immunoglobulins account for around 20 percent of the proteins in blood plasma and are produced by the body’s immune system to combat various pathogens.

The Role of the Hemoglobin

Blood comprises cells, including red blood cells, and a fluid called plasma. One of the main proteins found in red blood cells is hemoglobin. It is an essential protein as it helps in respiration by allowing oxygen to be transported from the lungs to the rest of the body. Hemoglobin contains iron which binds to oxygen and carries it along. Thus, hemoglobin plays a critical role in healthy breathing.

Hemoglobin is a protein in red blood cells that helps move oxygen around the body. It grabs oxygen molecules from the lungs and carries them to all the cells and tissues that need them. It also picks up the waste product carbon dioxide from the cells and tissues and brings it back to the lungs so the body can exhale it. Doctors check a person’s hematocrit levels, the amount of red blood cells in the blood, to ensure a healthy level of oxygen is being circulated in the body.

Plasma in Blood

Blood plasma is an important part of the body that plays an essential role in many bodily functions. It is made up of a variety of components, including proteins, hormones, electrolytes, and other substances. Here are some of its most important functions:

  • Transporting Nutrients

Our body needs nutrients to function properly. We get these nutrients from the food we eat and the drinks we consume. The digestive system breaks down the food into smaller molecules that can be absorbed and transported by the blood plasma. The blood plasma carries the nutrients like fats, amino acids, vitamins, and glucose to all body parts, providing the cells with the necessary fuel to grow, repair, and carry out their functions.

  • Transporting Hormones

Hormones are chemical messengers that travel through the bloodstream and act as a form of communication between different parts of the body. They influence the body’s functions by controlling things like metabolism and growth. These hormones move around the body in the blood, allowing them to reach various organs and tissues.

  • Respiration

Red blood cells are responsible for transporting oxygen from the lungs to the rest of the body and taking carbon dioxide away for exhalation. Hemoglobin in blood plasma helps facilitate this process by carrying the oxygen and carbon dioxide where they need to go. This ensures that the cells have a continuous supply of oxygen and that the carbon dioxide produced by them is eliminated.

  • Managing Waste Products

Cellular activity generates by-products that can harm the body when present in large amounts. Blood plasma helps eliminate these toxins, transporting them to the skin or kidneys for filtering and disposal.


Donating blood plasma is a noble and selfless act that can save many lives. It is important to thoroughly understand the process before donating, including its benefits and risks. It is also essential to adhere to all safety guidelines the FDA and the American Red Cross set to ensure a safe and successful donation experience. Donating blood plasma is a great way to help those in need, and understanding the process can make it an even more rewarding experience.

thplasma is a plasma donation center in New Jersey proudly steeped in community, driven by innovation, and guided by genuine care for our donors. We treat every employee and donor as part of our family, sharing our passion for saving lives. Donate plasma and get compensated today.