Hyperkalemia is an abnormally high level of potassium in the blood. The symptoms of hyperkalemia are primarily an arrhythmia accompanied by intense fatigue.
Definition of hyperkalemia
Hyperkalaemia is a disease caused by an abnormally high level of potassium in the blood. Most of the body’s potassium is found in cells and organs (98%). Only 2% of this chemical element is normally found in the bloodstream.
Potassium is an essential element in the proper functioning of the body. It allows the activation of nerves and muscles. It plays a vital role in setting the human body in motion. In addition, the heart is a muscle (heart muscle, also called myocardium ), this substance is also essential for the proper functioning of it.
The level of potassium in the bloodstream is regulated by the kidneys. The presence of kidney disease (nephropathy) can therefore be the cause of a deregulation of potassium levels in the blood, and thus lead to more or less serious consequences. This is the development of hyperkalemia.
The prescription of drugs, or a suitable diet, can regulate this abnormally high level of potassium in the blood. Nevertheless, hyperkalemia may be vital for the patient. The care must then be done as early as possible.
Any individual, regardless of sex, may be affected by the development of hyperkalemia.
However, people whose diet is very rich in potassium (athletes on a high-protein diet for example) are more exposed to hyperkalemic risk. In addition, patients with kidney and / or cardiovascular disease are also at increased risk of hyperkalemia.
Causes of hyperkalemia
There are several possible causes of hyperkalemia:
- have kidney disease
- Too much blood acidity
- the presence of diabetes
- the presence of cardiovascular disease
- A diet too rich in potassium (banana, orange, tomatoes, salt, etc.)
- trauma and serious injury
- the Addison’s disease (endocrine disease, caused by a diminished secretion of adrenal hormones)
- Certain medications: hypo-surfactants, nonsteroidal anti-inflammatory drugs, etc.
The complications and the most probable evolutions of the disease are more or less serious cardiac and cardiovascular attacks, but also a risk of an organ and muscle system deficiency.
Risk factors of hyperkalemia
The major risk factors of hyperkalemia are:
- the presence of a cardiovascular and / or renal pathology (cardiopathies, nephropathies)
- a diet rich in potassium
Symptoms of hyperkalemia
Sometimes patients with hyperkalemia have no symptoms.
Nevertheless, the symptoms most widely found in the context of such an attack are:
- irregularities in the heart rhythm (arrhythmia)
- intense and chronic fatigue
- muscle weakness
- tingling, numbness and other sensations in different parts of the body
- ephemeral paralysis
- difficulty breathing
- Nausea and vomiting.
How to treat hyperkalemia?
The drug treatments used in hyperkalemia help to restore the heart rate, as well as to promote the passage of potassium from the general blood stream to the cells. They also facilitate the excretion of excess potassium.
Hemodialysis is the most commonly used way to treat hyperkalemia. This technique eliminates excess potassium from the body.
The most commonly prescribed drugs include: calcium gluconate, insulin, sodium bicarbonate, diuretics, and others.
The reduction of symptoms associated with hyperkalemia is also possible by adapting the diet: reducing the consumption of foods rich in potassium (bananas, lentils, nuts, salmon, tomatoes, etc.), avoid processed and rich products in added sugars, avoid alcohol and tobacco, drink more water, etc.