(See also Introduction to Disorders of Kidney Tubules.)
The gene that causes Liddle syndrome is dominant, meaning that children of a person with the disorder have a 50% chance of inheriting the defective gene.
Liddle syndrome does not always cause symptoms. When it does, symptoms such as high blood pressure often begin during childhood or young adulthood. People also have low levels of potassium and high levels of bicarbonate in the blood.
In addition to finding high blood pressure in a young person, doctors also measure a low amount of sodium in the urine and find low blood levels of hormones that help regulate sodium levels in the blood and thus blood pressure (renin and aldosterone).
Genetic testing may also be done.
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