Diabetes insipidus is a condition that causes excessive urination. It can affect sodium levels and may lead to hypernatremia, a potentially serious condition causing high sodium levels in the blood.
Diabetes insipidus, now known as arginine vasopressin disorder (AVD), is a rare condition that causes the body to produce excessively large volumes of dilute urine.
Urination helps the body regulate fluids and electrolytes. However, the overproduction of urine can cause the body to lose too much fluid, resulting in dehydration.
Hypernatremia is a potential complication of dehydration. This term refers to when sodium levels are higher than usual. Sodium plays a key role in many bodily functions, such as muscle contraction, nerve impulse generation, and fluid balance. Mild hypernatremia may not cause noticeable symptoms, but moderate to severe hypernatremia can cause serious health issues.
Hypernatremia is a possible complication of diabetes insipidus. It generally refers to when sodium levels in the blood are more than 145 milliequivalents per liter (mEq/L). One of the
AVD
However, when problems occur with vasopressin, the body can lose fluid too quickly through the overproduction of urine. When the amount of fluid in the blood decreases, the concentration of electrolytes, such as sodium, increases. When the concentration of sodium increases above the upper limit in the normal range, it can result in a type of hypernatremia known as
Although hypernatremia is a possible complication of AVD, it is often rare. This is because many people living with AVD are often able to maintain a typical sodium level as they experience both polyuria (increased urination) and polydipsia (increased thirst).
Adipsic diabetes insipidus
Adipsic diabetes insipidus is a subtype of the condition where a person experiences adipsia, or a lack of thirst,
Typically, the body increases thirst to encourage a person to drink fluids. This helps to dilute the sodium, which the body can then pass out the body through urine. However, this is not the case with adipsia due to damage to the brain’s thirst center, which is present in the hypothalamus.
As such, people living with adipsic diabetes insipidus are at a
Hyponatremia refers to low blood sodium levels. Generally, AVD is unlikely to cause low sodium levels as a direct result of the condition, but it is possible for a person with AVD to experience hyponatremia. However, this will typically only occur due to certain medications for treating AVD or other conditions that can influence sodium levels.
For example, a
Both hyponatremia and AVD may also share certain risk factors. A
Mild hypernatremia may not present with noticeable symptoms. However, general symptoms of high blood sodium levels
- excessive thirst
- dehydration
- irritability and agitation
- lethargy
- drowsiness
- coma
Treatment for AVD will vary slightly depending on the subtype and severity of the condition. However, all treatments aim to manage thirst and urination and prevent dehydration.
For mild cases, a person may not require specific treatment and may just need to drink water when necessary. In other cases, a person
Treatment for hypernatremia involves correcting the fluid and sodium balance in the body. This
It is advisable to contact a doctor if a person notices excessive thirst or frequent urination. Usually, an adult may pass around 1 to 2 liters (L) of urine per day. However, with AVD, a person can pass more than
If a person is aware of other symptoms, such as unexplained fatigue, irritability, or other mood changes, this may also warrant a visit to a doctor.
AVD is a group of conditions that can cause excessive urination, and hypernatremia describes high sodium levels in the blood. As AVD can result in a significant loss of fluid, hypernatremia is a possible complication of the condition.
Hyponatremia refers to low sodium levels in the blood. While a person with AVD can experience hyponatremia, it is very unlikely to be directly due to the condition. Instead, if a person with AVD experiences hyponatremia, it is likely due to treatment options for AVD.
Symptoms of hypernatremia will usually resolve with treatment for AVD. Options can involve medications to help regulate urination or treatment for any underlying causes of AVD.