Question 1

why does hyperkalemia cause muscle weakness?

Accepted Answer

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.

Question 2

does hypo or hyperkalemia cause muscle weakness?

Accepted Answer

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.

Question 3

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

Accepted Answer

Potassium critical: Potassium is a very integral part of the muscle contraction process. It is also extremely sensitive to being in too high or too low a concentration. It has a rather narrow window of normal range so that any deviation above or below can cause drastic changes to the effectiveness of muscle contraction. With potassium, when it is either too high or too low muscles often become weak.

Question 4

does a elevated mcv  cause  muscle weakness .?

Accepted Answer

MCV and anemia: Mcv or mean corpuscular volume is a measure of red blood cell volume. We use MCV to differentiate types of anemia- low volume ( microcytic), normal ( normocytic), high volume  (macrocytic) anemia. Factors like vitamin deficiency, thyroid/ liver problems, drugs, bone marrow insufficiency, hemolysis can cause macrocytic anemia. Anemia can cause fatigue & muscle weakness when it is significant. D/w md.

Question 5

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

Accepted Answer

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.

Question 6

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

Accepted Answer

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.

Question 7

why does hypokalemia cause muscle weakness?

Accepted Answer

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

Question 8

what causes creatinine kinase levels to rise with muscle weakness?

Accepted Answer

Damage to muscle: The correct term is creatine kinase (ck). Creatinine is something else. Useful to know: most "muscle" weakness is actually caused by nerve, not muscle, malfunction. True muscle weakess: myocytes (muscle cells) contain lots of the enzyme ck. Low levels are found in blood normally. Damage to myocyte cell membranes from a variety of causes causes leakage of ck into the blood. Recovery->normalization.

Question 9

what nervous system diseases cause muscle weakness on the right side?

Accepted Answer

Focality: A lesion over the left side of the brain can cause right sided weakness, such as a stroke, hemorrhage, abscess, brain tumor.  If you have focal weakness, see a neurologist ASAP

Question 10

what could worsening muscle weakness and pain in one arm be caused by?

Accepted Answer

Nerve impingement: can be caused by being sandwiched between two spinal bones, pressed by a bulging. It can cause muscle weakness and pain in one arm , finger numbness, etc. Prevention treatment is always recommended. See interventional pain management specialist for definitive diagnosis and management.

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Doctor answers about:

Why does hyperkalemia cause muscle weakness

A member asked:

Why does hyperkalemia cause muscle weakness?

A member asked:

Does hypo or hyperkalemia cause muscle weakness?

A member asked:

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

A member asked:

Does a elevated mcv cause muscle weakness .?

A member asked:

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

A member asked:

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

A member asked:

Why does hypokalemia cause muscle weakness?

A member asked:

What causes creatinine kinase levels to rise with muscle weakness?

A member asked:

What nervous system diseases cause muscle weakness on the right side?

A member asked:

What could worsening muscle weakness and pain in one arm be caused by?

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