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 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 3

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 4

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 5

what causes muscle weakness in polio?

Accepted Answer

See below: The polio virus attacks the nerves in the spinal cord that supply the muscles. Called motor nerves. Polio does not affect the nerves that deal with sensation. When the nerves die due to the polio virus, the muscles tend to wither and that is what causes the weakness. Post polio syndrome can occur 30-40 years later with new symptoms of weakness and fatigue. It is not a reactivation of the virus.

Question 6

what causes muscle weakness and sleepiness?

Accepted Answer

Narcolepsy?: Some patients have narcolepsy and cataplexy. It is characterized by sudden and transient episodes of bilateral loss of muscle tone without loss of consciousness often triggered by an emotional stimulus such as laughter, surprise, anger, fear or humorous situations. Other reasons are sleep paralysis (weakness on awakening), what could be normal.

Question 7

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 8

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 9

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 10

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

Get Virtual Care

For Businesses

About Us

HealthTap Online Primary Care Doctors Accepting New Patients

Doctor answers about:

Causes of muscle weakness in elderly

A member asked:

Why does hyperkalemia cause muscle weakness?

A member asked:

Does a elevated mcv cause muscle weakness .?

A member asked:

Does hypo or hyperkalemia cause muscle weakness?

A member asked:

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

A member asked:

What causes muscle weakness in polio?

A member asked:

What causes muscle weakness and sleepiness?

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?

HealthTap Online Primary Care Doctors Accepting New Patients

Telemedicine

Primary Care

Manage Your Conditions

Women's Health

Children's Health

Men's Health

Senior Health

Wellness, Prevention & Lifestyle

Sexual Health

Mental & Behavioral Health

Travel Medicine

Urgent Care

Didn't find what you're looking for?

More of what we treat

Allergies

Antibiotics

Asthma

High Blood Pressure

Prescriptions

Type 2 Diabetes

For Businesses

Company

Health Content

Join Us

Download HealthTap

Questions?