Doctor's Notes on Low Potassium (Hypokalemia)
Hypokalemia is the situation in which the blood level of potassium is abnormally low. Potassium is important for a number of body functions, and small variations in the blood level of potassium can have serious effects on the body. Nerve and muscle cells, including those in the heart, are particularly vulnerable to changes in normal potassium levels. The most common reason for low potassium levels is not a decrease in intake but rather and excessive loss of potassium through vomiting, diarrhea, laxative use, and following certain surgical procedures to remove part of the intestines. Excessive loss of potassium from the kidneys and loss due to certain medications are other reasons for hypokalemia.
Symptoms that can be associated with hypokalemia can include muscle aches, muscle weakness, or muscle cramps. Irregular heartbeats (palpitations) may also occur. Psychological symptoms like delirium, hallucinations, depression, or psychosis may accompany severe hypokalemia. In extreme cases, life-threatening complications such as cardiac arrhythmias or circulatory collapse may develop.
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Acute Kidney Failure
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Arrhythmias (Heart Rhythm Disorders)
Arrhythmias or heart rhythm disorders are conditions that causes changes in the normal heartbeat. There are numerous types of arrhythmias, for example, supraventricular tachycardia, sinus sick syndrome, atrial fibrillation, atrial flutter, and ventricular fibrillation. Signs and symptoms of an arrhythmia may include: Chest pain or discomfort Shortness of breath Palpitations Racing heart sensation Treatment for arrhythmias depend upon the cause. -
Chronic Kidney Disease
Twenty percent of people over the age of 20 years will develop chronic kidney disease in their lifetime. Chronic kidney disease causes are diseases of the kidney(s), diabetes, uncontrolled high blood pressure, Glomerulonephritis, polycystic disease, medications, and other conditions. Symptoms include; fatigue, nausea and vomiting, edema, itching, easy bruising, anemia, headaches, insomnia, restless leg syndrome, chest pain, and more. Treatment for kidney disease generally involves dialysis, or kidney transplantation depending on the condition of the person and kidney(s). -
Dehydration in Adults
Dehydration occurs when the loss of body fluids (mostly water), exceeds the amount that is taken in. Causes of dehydration include fever, vomiting, diarrhea, diseases (diabetes), impaired ability to drink, lack of access to safe drinking water, and injuries to the skin. Common symptoms of dehydration include dizziness, dry skin, headache, low urine output, tiredness, sleepiness, dry mouth, and increased thirst. Treatment of dehydration depends upon the severity of the condition. -
Dehydration in Children
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Diabetic Ketoacidosis
Diabetic ketoacidosis (DKA) occurs when a person with diabetes becomes dehydrated. Causes of diabetic ketoacidosis include infection, missed insulin, or newly diagnosed diabetes. Some signs and symptoms of diabetic ketoacidosis include excessive thirst, vomiting, confusion, dry skin or mouth, shortness of breath, and abdominal pain. Diabetic ketoacidosis is a medical emergency and if you think you or someone you know may be suffering from diabetic ketoacidosis call 911 or go to the nearest urgent care facility or emergency department. -
Diarrhea
Diarrhea can be caused by bacterial or viral infections, parasites, intestinal diseases or conditions, reactions to medications, and food intolerance or allergies. Symptoms of diarrhea include watery stools, abdominal cramping, fever, and dehydration. Most cases of diarrhea can be treated at home. In some cases (in the elderly, small children, or those with severe or chronic medical conditions) may need to be hospitalized due to dehydration. -
Electrolytes
Electrolyes, including sodium, potassium, and magnesium, are chemicals that help the cells and organs of the body function. Electrolyte imbalance can result from dehydration, kidney failure, tumors, and other causes. Some symptoms of sodium imbalance include lethargy, confusion, weakness, swelling, seizures, and coma. -
Vomiting and Nausea
Vomiting and nausea are common complaints that accompany many conditions and diseases. A few common causes of vomiting and nausea include food poisoning, viruses, vertigo, head injuries, gallbladder disease, appendicitis, migraine, brain tumors, and infections. Treatment of vomiting and nausea depend on the cause of the symptoms.
REFERENCE:
Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.