Clinical Pathology

water deprivation test procedure diabetes insipidus

Water deprivation test used to differentiate the causes between diabetes insipidus and primary polydipsia. Water deprivation test principle The period after the administration of the desmopressin tests for the kidney’s ability to vasopressin and therefore differentiates between cranial and nephrogenic Diabetes Insipidus. The results of this test may be equivocal, necessitating further investigation. Water deprivation …

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what is hyperkalemia, hypokalemia causes?

Human blood consists of blood cells (red blood cells, white blood cells, and platelets) and electrolytes (sodium, potassium, and calcium ions).  Some diseases change electrolytes concentration like Cushing disease cause hypernatremia while Addison disease causes hyponatremia. Some diseases alter the potassium level and cause hyponatremia or hypernatremia.  Hypokalemia is defined as “a deficiency of potassium …

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Hypernatremia and hyponatremia causes

Hypernatremia and hyponatremia are two different medical terms. Hypernatremia medical definition is “Hyper means “excess” while hypo means “low”. Hypernatremia condition occurs when sodium ions concentration is increased by any causes. In the same way, when Na+ concentration is less than normal. It is known as hyponatremia. There are two types of electrolytes in our …

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