Skip to main content
Submitted by Dr S. Patel on 3 June 2017

This time in our Health by Numbers/Medical Tests series, Dr Shital Raval takes a look at the importance of Potassium levels in the electrolyte panel.

Read the first part on Sodium Levels 

POTASSIUM:

Potassium is both a mineral and electrolyte. It is important for heart, muscle, digestive and nerve functioning.  The potassium test is often part of a routine or done to check on the electrolyte balance of the body. The best sources of potassium are:

  • Leafy greens such as swiss chard, spinach, etc
  • Vegetables such as squash, sweet potatoes, avocados, mushrooms etc
  • Grains/beans such as lima beans, kidney beans, lentils, & pinto beans
  • Fruits like bananas, papaya, dried apricots, pomegranate seeds etc
  • Fish like salmon
  • Coconut water

The normal potassium level in the blood is 3.5-5.0 milliEquivalents per liter (mEq/L). The amount of potassium in blood is very small, so even minor changes in this amount can lead to serious health problems.

Low potassium levels:

Lower than normal levels or Hypokalemia may be due to:

  • Insufficient potassium in the diet
  • Gastrointestinal disorders or chronic vomiting or diarrhea.
  • Medications such as diuretics, corticosteroids, certain antibiotics and antifungals. Excessive use of laxatives or overdose of acetaminophen.
  • Folate deficiency
  • Diabetes
  • Excessive sweating
  • Chronic kidney disease
  • Increased production of aldosterone hormone.
  • Cushing syndrome, where there is increased production of cortisol hormone.

*Blood potassium level of less than 2.5mmol/l requires urgent medical treatment.

High potassium levels :

Higher than normal levels or Hyperkalemia may be due to:

  • A high potassium diet or intake of potassium supplements.
  • Red blood cell loss following a severe injury or burns.
  • After a blood transfusion.
  • Acute or chronic kidney failure.
  • Addison’s disease (adrenal gland failure).
  • Breakdown of muscle fibers due to alcohol or drug abuse.
  • Type 1 Diabetes
  • Certain medications such as NSAIDs (nonsteroidal anti-inflammatory drugs), beta-blockers, ACE inhibitors, angiotensin II receptor blockers and diuretics.

*Blood potassium level of more than 7.0mmol/l requires urgent medical treatment.

Related Recommended Reading: Diet for Chronic Kidney Disease

 

Changed
03/Jun/2017

Stories

  • Malays, Indians with Type 2 diabetes more likely to suffer strokes, heart attacks: Study
    SINGAPORE: In a decade-long diabetes study, researchers from Khoo Teck Puat Hospital (KTPH) found that among those with Type 2 Diabetes Mellitus (T2DM), Malays and Indians are at higher risk of cardiovascular diseases compared to Chinese patients. Malay patients had two times higher risk while Indians had 1.7 times higher risk of diseases such as heart attacks and strokes, compared to Chinese patients with T2DM, according to findings of a study released by the healthcare cluster that manages…
  • Diabetes has kept me healthy
    SR Madhu, 73, has had diabetes for 23 years, and has avoided the health hazards faced by his peers. He thanks the diabetes lifestyle for his wellbeing. Plus, his experience of hypoglycaemia.  I was quite upset to discover in 1991 that diabetes had hit me. I had been "on the borderline" of diabetes for a few years whenever I had been tested in India. But when I crossed the international border in 1991 to take up a UN assignment in Zimbabwe, the diabetes crossed…
  • Diet for Chronic Kidney Disease patients
    Dietitian Ujjwala Baxi helps make sense of the diet guidelines and tells you what you can eat guilt-free. Good kidney function is essential for removing the waste material from food that we eat and other byproducts of the body. The kidneys excrete a dietary protein called urea, as well as sodium, potassium and phosphate. These substances can build up in the body if kidney function is impaired. If your kidneys are not working optimally, you need to follow a prescribed diet to lessen the…
  • Diabetes patient jabbing themselves with insulin
    Worried About Insulin Shots?
    Persons with diabetes often get extremely stressed when their doctor wants to move them from pills to insulin shots. Dr Shital Patel allays the fears and explains what to expect and how to go about it. The transition from pills to insulin injections can be a worrying experience for many Diabetes Type 2 patients. You should know that this does not mean that your diabetes has worsened or that your Type 2 diabetes has changed to Type 1. You are being prescribed insulin because after…
  • A woman holding up the pregnancy test kit
    Pre-conception Care For A Healthy Pregnancy
    Planning a pregnancy? Obstetrician and gynaecologist Dr Chandan Dubey tells you what you need to do before you conceive. A woman’s good health prior to and during pregnancy is vital for optimal outcomes for her and the baby. You should consult a general physician or gynaecologist for preconception care and counselling. In the meantime, here’s what you should be aware of:  Lose weight (if you are overweight): Obesity is a serious problem in pregnancy. It increases the…
  • CKD Overview
    Chronic Kidney Disease: An Overview
    What is Chronic Kidney Disease or CKD? Chronic Kidney Disease is a condition characterised by gradual loss of kidney function over a period of time (months to years). It is also known as Chronic Renal Disease. It is the work of the kidneys to remove waste products and excess fluids from the body through urine. They also balance the levels of salt, potassium and acid in the body. If the kidneys don’t function adequately, wastes can build up in the blood, progressing to…
  • Neighbourhoods That Encourage Walking Reduce Obesity and Diabetes
    People who live in neighborhoods that are conducive to walking experienced a substantially lower rate of obesity, overweight and diabetes than those who lived in more auto-dependent neighborhoods, according to a pair of studies presented at the American Diabetes Association's 74th Scientific Sessions. http://www.diabetescare.net/article/title/neighborboods-that-encourage-walking-reduce-obesity-and-diabetes   Those who read this, also read one of our contributor's journey as a diabetic for…
  • Highest number of diabetes-linked TB cases (302,000) in India, says Lancet
    Diabetes is making an increasingly important contribution to the TB epidemic and a 52% increase in diabetes prevalence recorded over the last 3 years in the 22 highest TB burden countries is thought to be responsible for a rise in diabetes-associated TB cases from 10% in 2010 to 15% in 2013,” says the Lancet study to be published in the medical journal this week. Read more here  Diabetes has long been known to be a risk factor for active tuberculosis and reactivation of latent tuberculosis…
  • Healthy Foods and Treats in Singapore
    Juliana Lim has had Type II diabetes for 27 years. Here, she shares her diabetes and cholesterol friendly secrets and her little treats. She is a committee member of Diabetic Society of Singapore and represents the Diabetic Support Group.  Food - Try to include the following in your daily diet: 1. Small black fungus -These are easily available in supermarkets and can definitely help to manage your blood sugar. 2. Ladies fingers (Okra) - Try to get the fresher ones.…
  • The Sweet Truth
    All you need to know about artificial sweeteners and sugar-free treats. By Dr Gita Mathai, a paediatrician and family practitioner.  Food is enjoyed if it looks, smells and tastes good. It needs to provide an appetising blend of salt, sugar, bitters, sourness and spice. The first three in excess are “injurious to health”, and, of these, sugar is considered the greatest villain of all. It is purported to be singlehandedly responsible for the global epidemic of…