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Doctor insights on: Low Potassium Cardiac Arrest

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If someone goes into cardiac arrest from extremely low potassium blood level. Would the defibrillator work? Or do they need the potassium

If someone goes into cardiac arrest from extremely low potassium blood level. Would the defibrillator work? Or do they need the potassium

Cardiac arrest?: Defibrillator r used in case of emergency to treat a cardiac arrest but it is important to check the reasons for the arrest and correct any lab abnormality. ...Read more

Dr. Madhu Kandarpa
1,327 Doctors shared insights

Potassium (Definition)

Potassium is an essential electrolyte, important in the functioning of many organs including the heart, kidneys, muscles, nerves, and digestive system. Deficiency can be caused by diseases such as kidney failure, vomiting, and diarrhea, or by ...Read more


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What mechanism that high potassium causes cardiac arrest? I just know high k+ causes hyper excitability of cells?

What mechanism that high potassium causes cardiac arrest? I just know high k+ causes hyper excitability of cells?

Cell repolarization: When cardiac muscle cells fire, they use up part of the electrochemical gradient they maintain in life. They are repolarized by an outward potassium (K+) flux across the plasma membrane. This outward K+ current depends on the K+ electrochemical gradient. If the "outside" K+ (in blood & interstitial fluid) is very high, that destroys the K+ electrochemical gradient, the cells can't repol; they stop ...Read more

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Cardiac arrest from high potassium treatment in er?

Cardiac arrest from high potassium treatment in er?

High potassium: Yes I have seen this and had a family with several who died from it. Well in them they were treating low K and got it too high. So need more information. Happy to do 2nd opinion. ...Read more

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Should I worry about a heart attack if I am having symptoms of low potassium such as cramps?

Should I worry about a heart attack if I am having symptoms of low potassium such as cramps?

Probably not: At 34 yrs of age the odds of you having a heart attack is very small. Also cramps are not typical complaint during a heart attack. The symptoms are ususally, squeezzing chest pain, pressure, shortness of breath, nausea, sweatiness. The pain can move to neck, jaw, arms, or back. Leg cramps can be from low potassium but other causes too. ...Read more

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I've been having chest pains randomly for about a week and I've been to the ER twice. Ekg and X-ray showed normal. Low potassium. Is heart attack likely?

I've been having chest pains randomly for about a week and I've been to the ER twice. Ekg and X-ray showed normal. Low potassium. Is heart attack likely?

Probably not: A heart attack without major risk factors at 19 is rare - low potassium is not necessarily normal - make sure that any of your medications couldn't be affecting your potassium - are you having any reflux symptoms? ...Read more

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I have cardiac arrhythmia & chronically low potassium. I need to have a colonoscopy & I was wondering if there is a safe bowel cleanse??

I have cardiac arrhythmia & chronically low potassium. I need to have a colonoscopy & I was wondering if there is a safe bowel cleanse??

Low K: 20 M from Louisana has arrythmias and low K. Needs colonoscopy asks about "safe" bowel cleanse. ANS: low K can kill you so tell your bowel team and ask them as they know you best. I specialize in low K problems. What is the cause of low K n u? ASK about starting DASH DIET ASAP as way to stop low K now. I specialize in low K. Can provide u second opinion consult. ...Read more

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Does cardiac arrest result when your pulse rate drops low?

Does cardiac arrest result when your pulse rate drops low?

Cardiac Arrest: Is when the heart stops beating or has a chaotic rhythm as not to have a blood pressure or spontaneous respirations. ...Read more

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A 51 year old ex figure skater, who's in good shape had Sudden Cardiac Arrest. Are odds of SCA very low for someone with no known heart abnormalities?

A 51 year old ex figure skater, who's in good shape had Sudden Cardiac Arrest. Are odds of SCA very low for someone with no known heart abnormalities?

Yes, but never zero.: Known >8 decades: 1/2 of US population has atherosclerosis by later childhood, yet no symptoms for decades: http://goo. Gl/aRhOU2. Symptoms are from plaque ruptures & clots (most without symptoms) yet can close major arteries within minutes: thus SCA with no warning signs in advance; including normal cholesterol & angiogram without problems days prior. Rec: Study my answers & optimize Ds drivers. ...Read more

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Is it possible beta blockers could drop heart rate too low and cause cardiac arrest? What would be a concerning heart rate?

Is it possible beta blockers could drop heart rate too low and cause cardiac arrest? What would be a concerning heart rate?

Beta Blockers: It is definitely possible for beta blockers to cause the heart rate to drop too low (called bradycardia) but cardiac arrest would be extremely unusual. A low heart rate becomes concerning when someone is having symptoms (such as sweating, dizziness, nausea, etc.) and if it doesn't increase with activity. Some elite athletes have resting heart rates below 40 bpm. ...Read more

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I have hypokalemia which is low potassium in my blood should I play soccer today or wait?

I have hypokalemia which is low potassium in my blood should I play soccer today or wait?

Low potassium: You would be better off waiting for your potassium (k) levels to rise before you play soccer. The more important question is, why is your k low? Are you on any medications that would lower it, like diuretics? Do you have a low magnesium level? See a physician to get to the cause of your low k level. It is better to prevent a problem than treat it. ...Read more

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I have a low potassium problem and kidney stones problem. Is my hypokalemia the cause of my kidney stones? Or the other way?

I have a low potassium problem and kidney stones problem. Is my hypokalemia the cause of my kidney stones? Or the other way?

Unlikely: A potassium-wasting problem might be due to kidney tubular / parenchymal damage from infection related to kidney stones, but in this case you would have been told of this by your physicians. If your potassium is actually significantly below the healthy range, this is serious and no physician would let it go without a full workup. You have a right to a thorough explanation from your doctor. ...Read more

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What are the causes of low potassium (hypokalemia)?

What are the causes of low potassium (hypokalemia)?

See below: A low potassium level has many causes, some are due to decreased intake, some due to increase loss from the skin, gut eg loose stools, urine eg alcohol intake, tubular problems or magnesium deficiency. Others are due to shift of potassium into the cells. ...Read more

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How does hypokalemia affect leg muscle endurance activities like running and swimming? With low potassium can you still build muscle?

Muscle cramps: You need proteins to build and maintain muscle, but you need to right balance of fluids and electrolytes to have good muscle function. When your potassium is low, you are more likely to experience muscle cramps and fatigue. ...Read more

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Insulin 64 after high carbs and glucose 54 & hypokalemia. I'm hypokalemic PP diagnosed but wonder if congenital hyperinsulin can cause low potassium?

Insulin 64 after high carbs and glucose 54 & hypokalemia. I'm hypokalemic PP diagnosed but wonder if congenital hyperinsulin can cause low potassium?

Insulin and carbs: Rachel,
I wish I could help you but your comments are unclear.
What do you mean by "insulin 64" and glucose 54?

Have you been told that you have "congenital hyper-insulin"? In that case your doctor would have referred you to a surgeon.

If you can, please give me some more information. ...Read more

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Was diagnosed with hypokalemia after taking florinef (fludrocortisone). Same day I had blood work for nt-probnp. Could low potassium cause high bnp? Mine was high

Florinef (fludrocortisone): Florinef (fludrocortisone) causes salt and fluid retention. The fluid retention may cause a rise in bnp. Suggest you discuss result with your md. Lowering of the potassium is a known side effect of Florinef (fludrocortisone) use. ...Read more

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What can cause sudden dangerously low potassium, hypokalemia, causing me to collapse and nearly die? What tests do I need?

What can cause sudden dangerously low potassium, hypokalemia, causing me to collapse and nearly die? What tests do I need?

Low K: 55 F asks what can cause sudden dangerous low K? I collapsed and nearly died. ANS: Many things & can't detail here. But at ur age & having given no other information (people must think we can read minds here-NOT) suspect taking diuretic 4 HTN or edema, severe vomiting diarrhea sweating, GI tumor, or adrenal tumor making 2 much aldosterone. I specialize in this. Consult me! ...Read more

Dr. Creighton Wright
3,967 Doctors shared insights

Heart Attack (Definition)

A life-threatening condition in which the blood vessels that supply the heart becomes occluded and thus the heart itself is not longer receiving any blood flow. Without this blood flow, the heart muscle dies and cannot pump blood to the ...Read more


Dr. Clarence Grim
267 Doctors shared insights

Hypokalemia (Definition)

Most labs will define normal as 3.5 to 5. Some may increase the upper limits to 5.2 but anything above 5.5 is clearly abnormal. Level below ...Read more