Which of the following is the most common electrolyte disorder associated with bulimia nervosa?

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The typical electrolyte abnormalities associated with bulimia are hypokalemia and metabolic acidosis. Different purging methods result in different constellations of serum and urine electrolyte disturbances (see accompanying table).

Does bulimia cause electrolyte imbalance?

Almost half of all people with bulimia have electrolyte imbalances. [2] A bulimia electrolyte imbalance can cause dizziness, confusion, and swelling in your hands and feet. If left untreated, these issues can cause life-threatening complications, including heart damage.

Does anorexia cause electrolyte imbalance?

The most frequent electrolyte imbalances seen in anorexia are hyponatremia (a low concentration of sodium ions in the bloodstream) and hypokalemia (a low concentration of potassium ions).

What eating disorders cause low sodium?

Anorexia nervosa (AN) is a psychiatric disorder characterized by restrictive eating, low body weight, and severe bone loss. Recent data show a deleterious relationship between low circulating sodium levels and bone mass, and relative or absolute hyponatremia is a known complication of AN.

Is hypokalemia common in anorexia?

Hypokalemia is frequently found in patients with anorexia nervosa and sometimes leads to life-threatening conditions.

Why does anorexia cause hyponatremia?

Hyponatremia can also be seen in severe restrictive eating disorders due to decreased ability of the kidney to excrete free water as a result of low nutritional intake. Without enough food or solutes, even a fairly normal amount of water intake can lead to hyponatremia if the body retains too much of it.

Can malnutrition cause hypokalemia?

In general, hypokalemia is associated with diagnoses of cardiac disease, renal failure, malnutrition, and shock. Hypothermia and increased blood cell production (for example, leukemia) are additional risk factors for developing hypokalemia.

Does bulimia cause low potassium?

Low potassium level, or hypokalemia, is the most serious consequence of bulimia because it causes heart arrhythmias (irregular heartbeats), cardiomyopathy (weakening heart), muscle weakness that can border on paralysis, and tetany (involuntary muscle contractions)2.

What is the primary characteristic of anorexia nervosa?

Overview. Anorexia (an-o-REK-see-uh) nervosa — often simply called anorexia — is an eating disorder characterized by an abnormally low body weight, an intense fear of gaining weight and a distorted perception of weight.

What is a common result of bulimia nervosa?

Bulimia may cause numerous serious and even life-threatening complications. Possible complications include: Negative self-esteem and problems with relationships and social functioning. Dehydration, which can lead to major medical problems, such as kidney failure.

Why do anorexics have low potassium?

Inpatients with anorexia nervosa presumably have a higher risk of developing hypokalemia because they suffer from severe malnutrition and are refed [21], in which the insulin surge resulting from glycemia during the refeeding process causes a substantial intracellular uptake of potassium and phosphorus [20].

Can bulimia cause low sodium levels?

Both anorexia and bulimia can lead to dehydration and electrolyte imbalances. Malnutrition from either disorder can prevent the body from receiving the nutrients it needs (including sodium), and this can lead to sodium concentrations becoming imbalanced.

Does bulimia cause magnesium deficiency?

Frequent purging can cause malnutrition, especially low magnesium. A magnesium deficiency can also cause calcium and potassium deficiencies, as magnesium helps absorb and transport these electrolytes through the body.

Does bulimia cause hypoglycemia?

Bulimia with bingeing and vomiting can also cause hypoglycemia and alter glucose levels.

Does bulimia cause dehydration?

Frequent purging can cause dehydration. This leads to weak muscles and extreme fatigue. It can also throw your electrolytes out of balance and put strain on your heart. This can cause an irregular heartbeat (arrhythmia), and in some severe cases, a weakened heart muscle and heart failure.

Is hyperkalemia associated with anorexia nervosa?

In an adolescent with anorexia nervosa, recurrent hyperkalemia was caused by obsessive eating of up to 20 bananas per day. In another case, a patient with schizophrenia and psychogenic polydipsia was water-restricted but developed hyperkalemia because she replaced water with excessive consumption of orange juice.

Does bulimia cause metabolic alkalosis?

Patients who purge by vomiting may present with metabolic alkalosis (elevated serum bicarbonate levels) due to volume contraction. However, patients who primarily abuse laxatives may present with metabolic acidosis (decreased serum bicarbonate levels) due to loss of alkaline fluid from the bowel.

What is a starvation syndrome?

When starved of energy, the human body responds in a way known as “Starvation Syndrome”. Starvation syndrome (or semi- starvation) refers to the physiological and psychological effects of prolonged dietary restriction.

Can starvation cause hyponatremia?

Conclusions. Malnutrition can lead to hyponatremia and prerenal AKI. However, long-term malnutrition may also affect the tubular function of the kidney. Severe hyponatremia, other electrolyte disturbances, and protein and vitamin deficiency can be factors that interact in this pathogenesis.

What is refeeding syndrome in anorexia?

Refeeding syndrome (RS) is one of the serious complications during treatment of anorexia nervosa. It includes hormonal and metabolic changes that occur during the process of refeeding in chronically malnourished patient when nutrition is introduced in an excessive and improper amount.

What is AN electrolyte imbalance?

An electrolyte imbalance occurs when you have too much or not enough of certain minerals in your body. This imbalance may be a sign of a problem like kidney disease. Electrolytes are minerals that give off an electrical charge when they dissolve in fluids like blood and urine.

What are 3 causes of hypokalemia?

  • Alcohol use (excessive)
  • Chronic kidney disease.
  • Diabetic ketoacidosis.
  • Diarrhea.
  • Diuretics (water retention relievers)
  • Excessive laxative use.
  • Excessive sweating.
  • Folic acid deficiency.

What is the most common cause of hypokalemia?

Hypokalemia is often caused by an excessive loss of potassium in your digestive tract due to vomiting, diarrhea or laxative use. Other causes include certain medications and some adrenal and genetic conditions.

Who is most at risk for hypokalemia?

Overview. Risk factors associated with a low serum potassium levels (hypokalemia) include female gender, intake of medication (diuretics), heart failure, hypertension, low body mass index (BMI), eating disorder, alcoholism, diarrhea, Cushing’s syndrome.

How does vomiting affect electrolytes?

Electrolytes and acid-base disorders The vomiting of gastric or intestinal contents most commonly involves the loss of fluid that contains chloride, potassium, sodium, and bicarbonate. The sequelae of these losses include dehydration along with hyponatremia, hypochloremia, and hypokalemia.

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