Hyperkalemia: can have deadly consequences

Topping the charts

Hyperkalemia is when the potassium level in your blood is higher than normal. Potassium is a chemical critical to the function of muscle cells, nerves and including your heart.

Requires treatment

A normal level of potassium in the blood is 3.6 to 5.2 millimoles per litre (mmol/L). Having a blood potassium level higher than 6.0 mmol/L can be dangerous and usually requires immediate treatment.

Balancing the scales

The kidneys regulate potassium levels and If you have kidney disease, controlling the amount of potassium in your diet is very important, since eating too much can lead to further kidney damage.

Hyperkalemia - Predialysis Patients

More than half of predialysis kidney patients develop hyperkalemia.

Quick Simple Blood Test

A person's potassium levels can be easily checked with a simple blood test.

Common Symptoms

Tinkling and Numbness

Having excess potassium in the blood is known to affect nerve function.

Irregular Heartbeat or Arrhythmia

Arrhythmia happen when high potassium causes damage to the muscles that control your heart.

Irregular heartbeat is when your heart beats either too slow or too fast.

Nausea and/or Vomiting

High potassium is also known to adversely impact your gastrointestinal health causing nausea, vomiting, abdominal pain and cramping,  and for some diarrhea. 

Shortness of Breath

Arrhythmia happen when high potassium causes damage to the muscles that control your heart.

Muscle Weakness

High levels of potassium in the bloodstream can have an serious effect on your heart muscles and other muscles of the body. Causing weakness and fatigue.

Renin-angiotensin-aldosterone system inhibitors

People with chronic kidney disease, heart failure, diabetes and those taking blood pressure medicines called renin-angiotensin-aldosterone system inhibitors (RAASi) have an estimated 2 to 3 times higher risk for hyperkalemia.

High

Potassium is found mostly in fruits and vegetables. Foods with a high amount of potassium, or greater than 200 mg per portion, include:

  • apricots
  • asparagus
  • avocados
  • bananas
  • beans
  • cantaloupe
  • cooked dried fruits
  • grapefruit honeydew
  • ketchup
  • legumes
  • lentils
  • nectarines
  • oranges
  • potatoes
  • pumpkin
  • raisins
  • squash

Low

Foods low in potassium include:

  • apples
  • asparagus
  • celery
  • cherries
  • okra
  • peaches
  • pears 

Recommended Topics

Learn  |  Common Causes

Hypertension Stress

Hypertension adds stress to kidneys and can cause severe and permanent damage.

Learn  |  Common Causes

Kidney Stones

Experience passing one & you'll remember. Having one also puts you at risk of developing more.

Learn  |  Common Causes

Known Toxins

If you take any of these drugs often, you could put your kidneys at risk of permanent damage.