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What causes abnormal heart rhythms, fatigue and muscle cramp? 2 possible conditions

See a list of possible causes in order from the most common to the least.


Low Blood Potassium

Hypokalemia occurs when the blood's potassium levels are too low. A normal level of potassium is 3.6-5.2 millimoles per liter. Levels below 3.6 are considered low.

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Marine Animal Bites or Stings

This condition is considered a medical emergency. Urgent care may be required.

Stingrays have venomous spines on their tails that can cause a painful wound, nausea, and weakness, and sometimes death. Swimming or snorkeling in shallow waters puts you at risk for coming in contact.

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.