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Doctor insights on: Why Does Hyperkalemia Cause Muscle Weakness

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Why does hyperkalemia cause muscle weakness?

Why does hyperkalemia cause muscle weakness?

Dysfunction: It interferes with the muscles ability to contract because it alters the electrolyte balance across the muscle memberane. You have to have the right balance of potassium and other electrolytes for the contractile elements of the muscle to be able to contract which is what gives you movement and strength. ...Read more

Dr. Abraham Jaskiel
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Hyperkalemia (Definition)

Hyperkalemia in an elevated potassium level in the blood. It can be mild to severe. The most common causes are kidney disease, Addison's disease, dehydration, and multiple drug therapies. It can occur in crush injuries and rhabdomyolysis (rapid breakdown of muscle) or hemolysis (breakdown of blood cells). Severe hyperkalemia can be fatal and cause the heart to stop beating or become very slow. It is usually treated by resin exchange agents (Kayexalate or others) or dialysis and fluids. Sometimes glucose, Insulin and sodium bicarbonate can be utilized as ...Read more


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Does hypo or hyperkalemia cause muscle weakness?

Does hypo or hyperkalemia cause muscle weakness?

Hypo: Potassium is needed to help muscle function. Without enough potassium, there is a change in the conduction of cells within a muscle. This change can lead to cramping, weakness and even heart arrythmias. People who have poor diets or who take diuretics "water pills" can develop hypokalemia more often. ...Read more

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Why is it that people get muscle weakness in hyperkalaemia and hypokalaemia?

Why is it that people get muscle weakness in hyperkalaemia and hypokalaemia?

Important K: Potassium is integral for muscle contraction - when too high or too low it causes problems like muscle cramps. As the heart is a muscle it is also very important for your heart function. ...Read more

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Does a elevated MCV cause muscle weakness .?

In short: The short answer is no. The elevated MCV needs to be looked at along other parameters of CBC and could reflect B12 deficiency or folate (folic acid) deficiency and mds. ...Read more

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What causes muscle weakness and not affect the nervous system?

What causes muscle weakness and not affect the nervous system?

Tough one: There are several categories of possibilities: viral illness, statin cholesterol medications, diabetes(high or low glucose) low thyroid, muscular dystrophy, low potassium or low calcium levels, low protein diet to name a few... ...Read more

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What is something that could cause numbness and slight muscle weakness through my body?

What is something that could cause numbness and slight muscle weakness through my body?

So many things: There are so many things that could produce these very non specific symptoms. It really would not be responsible for me to list them here. It would be best to see your doctor and discuss your symptoms. ...Read more

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Does muscle weakness in children always have an underlining condition or cause?

Does muscle weakness in children always  have an underlining condition or cause?

Usually: Children should not be displaying muscle weakness. There is often a cause. See a pediatric neurologist for the best diagnosis. ...Read more

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Can anyone tell me what causes extreme muscle weakness & pinching pains all over your body?

Can anyone tell me what causes extreme muscle weakness & pinching pains all over your body?

I could possibly: Generate a very large list of medical conditions that may lead to these types of symptoms. It is best to speak with your doctor and start with a basic work up first. That will help eliminate items from that list. ...Read more

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What techniques could be used to determine the cause of severe muscle weakness after only mild exercise?

What techniques could be used to determine the cause of severe muscle weakness after only mild exercise?

Many: The workup would start with metabolic tests, thyroid function tests, serum chemistries, blood counts, and could progress to electromyograms, nerve conduction tests, and also muscle biopsy. ...Read more

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Why does hypokalemia cause muscle weakness?

Muscles need lytes: Your muscles and nerves require potassium to properly contract and relax. If low, they don't work as efficiently ...Read more

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Muscle (Definition)

It is a body tissue that has the ability to contract. It shortens and generates force. It relaxes and returns to its original length. Muscles move joints, stabilize the body, move air and food through the organs, act as valves for bladder, bowel and other organs. They control movement of the eyes. They help us express ourselves by changing the shape of our ...Read more


Dr. Marcel Hungs
775 doctors shared insights

Muscle Weakness (Definition)

Muscle weakness is a symptom in which a person has less strength in his muscles than previously. Muscle weakness can be in certain parts of the body, or a person can be weak all over. The weakness can come and go, or can be ...Read more