Blood donation is a procedure carried out for the noble cause of helping patients and saving lives. As the healthy donor's blood is transfused into the patient, it gives them a new life. That said, the donor has to fulfill a few criteria to be eligible to donate blood.

Eligibility

While any healthy adult of any gender can donate blood, it is advised for males to donate once every three months and for females to donate once every four months. Some of the other criteria are-


	
	Age
	


Any person in the age group of 18 to 65 years can donate blood depending on other factors.


	
	Weight
	


A donor should be at least weigh 45 kilograms in order to be eligible.


	
	Pulse
	


The temperature and pulse of the donor should be normal during the time of blood donation.


	
	Hemoglobin
	


Hemoglobin in the blood should be at least 12.5 grams otherwise the donor stands ineligible.


	
	Childbirth
	


A female donor should have delivered at least 1 year ago and stopped lactation.


	
	Blood pressure
	


Ensuring that the systolic and diastolic pressures are within normal limits is a must.


	
	Malaria
	


One should not have malarial symptoms and not have been treated for the same in the last 3 months.


	
	Tattoo
	


A person should not have had a tattoo in the past 12 months.


	
	Immunization and vaccination
	


A donor should not have had shots for cholera, typhoid, diphtheria, tetanus, or plague in the last 15 days.


	
	Cancer
	


A person should be checked for cancer and should not have any signs of cancer in the body.


	
	Infection
	


There should not be hepatitis b, c, tuberculosis, leprosy, or hiv infection in the body.


	
	Diseases
	


A person should not have epilepsy, bleeding disorders, sickle cell, or thalassemia.


	
	Drugs
	


One cannot donate blood if injected intravenously ever. It may cause risk to the recipient.


	
	Heart issues
	


A person willing to donate cannot have any heart disease.


	
	Diabetes
	


People on oral drugs or dieting to control diabetes can donate blood while patients with insulin injections cannot.

 

Strictly prohibited


	
	Ones who have been tested hiv positive.
	
	
	People suffering from cardiac problems, hypertension, cancer, epilepsy, or kidney ailments.
	
	
	Donors who have consumed alcohol in the past 24 hours.
	
	
	Ones with a major dental procedure done in the last one month.
	
	
	Women with miscarriages in the past 6 months.
	



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Know Eligibility Rules For Donating Blood

Potassium is an essential mineral that helps in healthy functioning of your body   it helps in muscle contractions, fluid balance, and nerve signals. Your body receives the required amount of potassium from specific food sources and processes the same. The excess potassium is eliminated from the bloodstream by your kidneys.

Under normal circumstances, your blood levels should be between 3.5meq/l and 5.5meq/l for potassium to carry on these functions. Healthy kidneys play a vital role in keeping the potassium levels in check.

In case your kidneys are unable to remove excess potassium, it may get stored in your blood, leading to a condition known as hyperkalemia.

The link between your kidneys and potassium

The mineral potassium and your kidneys share an intricate relationship. If the levels of potassium in your blood are too high, it can pose a threat to your cardiac condition   leading to a ;heart attack or ;irregular heartbeat.

Hyperkalemia occurs when the kidneys fail to function properly. Your kidneys work to balance the amount of potassium consumed with that, which is eliminated through urine. Your body takes in potassium through the foods and drinks you consume. In the initial stages of your kidney disorder, they may be able to make up for high levels of potassium. However, as your condition worsens, they may be unable to eliminate enough of the mineral from the body.

How to find out if you have high potassium levels

The only way to figure out if your potassium levels are healthy or too elevated is to go for a blood test. The test measures the level of potassium in the bloodstream.

As long as your kidneys are healthy, your potassium levels will be under control. Therefore, if you have hyperkalemia, or if there are chances of you getting it, you may have to cut back on foods that are high in potassium content. Besides, you will have to rely on diuretics and potassium binders.

How Are Kidney And Potassium Connected?

Blood is one of the most crucial elements of human existence. It works as a commute for oxygen and various nutrients in reaching the cells. These functions make blood a vital source for the body to operate. That said, india needs 38, 000 blood donations every day, which adds up to 5 crore units required in a year. However, only 2.5 crore units are available against the huge unfulfilled numbers. Hence, it is essential to recognize the importance of blood donation.

 

Why is blood donation important?

While blood donations are essential to help people with surgeries, they are equally vital during cancer treatments, chronic diseases, and gruesome injuries. Moreover, they also benefit the donors in a significant way.

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Types of blood donations

Blood donations are of several types through which a single donor has the potential to help nearly three people.

 

Whole blood donation

It is the most common process of donating blood. One pint of blood collected supports numerous patients in the process. It is, then, divided into different components that aid the donation.

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Plasma donation

The process of plasma collection is carried out through a method called apheresis. It divides plasma from other blood components. Its blood clotting abilities help trauma patients and people undergoing cancer treatment.

 

Platelet donation

The collection of platelets is also done using apheresis. Once identified in the donor s blood, the rbcs and the donor gets other fluids back. Cancer patients are the chief beneficiaries of platelets as they play a prominent role during cancer treatments.

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Double red cell donation

Red blood cells are also collected through the apheresis process. It helps donors to donate twice the dose of a whole blood donation. One can help a patient suffering from blood loss using this method.

 

Advantages of blood donation

Blood donations have several advantages that people should know. They help fight many severe health conditions in the human body. Some of them include-


	
	Loss of blood due to internal or external injuries caused by accidents
	
	
	Sickle cell disease or other abnormalities that affect the blood
	
	
	In the treatment of cancer
	
	
	Cardiovascular or orthopedic surgeries
	
	
	Blood disorders
	
	
	Transplant processes
	
	
	Treatments involving plasma
	


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Covid-19

According to food and drug administration (fda) reports, patients who have recovered from covid-19 can help others by donating blood plasma. They contain antibodies that fight the infection, helping their body fight the virus.

 

Benefits for the donor

Even the donors receive many health and social benefits because of blood donation. Where donated blood saves lives, experts suggest that donors can also benefit from the same. Some of these advantages include:

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	Boosting cardiovascular health
	
	
	Maintaining blood pressure
	
	
	Contributing to the community
	
	
	Reducing the iron levels
	
	
	Improving overall health
	



 

Why Blood Donation Is Important?

High sugar levels can harm your body and impact the quality of life. However, you can manage your ;sugar levels by keeping a check on your nutritional intake.

Manage Your Diabetes By Keeping A Check On Your Nutritional Levels

Congestive heart failure is a condition when your heart stops pumping blood effectively. By being aware of the risk factors, you can manage your condition in a better way. Also, you must consult your doctor on a regular basis to get yourself checked.

Complications Associated With Congestive Heart Failure

Atherosclerosis refers to a medical condition in which the arteries become hardened and narrowed due to the accumulation of cholesterol plaque in the walls of the artery, obstructing the flow of blood.

What are the causes?

Atherosclerosis is a slow but progressive disorder that starts with the damage of endothelium   cells lining the interior surface of lymphatic and blood vessels. This allows bad ldl cholesterol to build up in the artery walls. Over time, a plaque made of calcium, macrophages, and cholesterol grows to a certain size to clog up arteries, disrupting blood flow around the body.

Other factors leading to atherosclerosis to include  

High blood pressure

High levels of triglyceride in the blood

High cholesterol levels

Certain medical conditions   diabetes, obesity, insulin resistance

Smoking/use of tobacco

Inflammatory conditions like lupus and arthritis

Symptoms of atherosclerosis

Atherosclerosis may develop in childhood or during adolescence. Mild conditions may not reveal observable symptoms unless the arteries are clogged, and blood supply to the tissues and organs are restricted.

Signs of moderate to severe atherosclerosis depend on the affected arteries   it could be the arteries leading to your brain, your heart, legs and arms, or the kidney. The symptoms of atherosclerosis include  

Weakness and fatigue

Difficulty breathing/concentrating

Headaches

Facial numbness

Paralysis

Vomiting

Chest pain

Anxiety

Loss of appetite

Swelling in the feet and hands

If any of the above symptoms seem familiar to you, consult a doctor right away for treatment.

Can atherosclerosis be prevented?

The best way to avoid cholesterol plaque from building up in the artery walls is to prevent the onset of atherosclerosis with these preventive measures.

Eat healthy   avoid eating foods that are rich in saturated fats   red meat, butter and cheese. These increase your cholesterol levels drastically. Instead, include foods that contain unsaturated fats, like avocados, olive oil, fatty fish, nuts and seeds because these help to keep ldl or bad cholesterol levels down.

Stay active   exercising and staying active can help regulate your cholesterol levels and prevent certain conditions that might put you at risk for atherosclerosis.

Quit smoking   people who smoke should quit smoking because it is a major risk factor for atherosclerosis   it increases blood pressure, which in turn, affects your cholesterol levels.

Atherosclerosis can lead to complications. With precautionary measures and proper treatment, the condition can be avoided.

Know All About Atherosclerosis Here

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