What is the method of plasma antidiuretic hormone examination?

summary

Antidiuretic hormone, also known as vasopressin, is a cyclic peptide hormone secreted by hypothalamic supraoptic nucleus. Its physiological function is to enhance the reabsorption of water by the distal renal tubule and collecting duct, play an antidiuretic role, and maintain the normal colloidal osmotic pressure of plasma, so it has a great impact on the concentration function of kidney. The changes of blood volume and blood pressure can affect the secretion of antidiuretic. What is the method of plasma antidiuretic hormone examination? Next, I'd like to share my views with you.

What is the method of plasma antidiuretic hormone examination?

High: in thyroid hormone, glucocorticoid and insulin deficiency, and antidiuretic hormone secretion syndrome, tuberculosis, brain injury, congestive heart failure. Night standing posture and pain can increase the secretion of lalidiuretic hormone. Taking sedatives and hypoglycemic drugs can increase the level of antidiuretic hormone. Decrease: seen in diabetes insipidus, nephrotic syndrome, and taking lithium and tetracycline.

Plasma antidiuretic hormone is a kind of hormone secreted by hypothalamus and released in pituitary gland due to lack of water in human body. It can strengthen the reabsorption capacity of renal tubules to water, prevent a large amount of water from flowing out, play an antidiuretic role, and maintain normal colloidal infiltration of plasma. Therefore, it has a great impact on the concentration function of kidney. The changes of blood volume and blood pressure affect the secretion of antidiuretic.

Radioimmunoassay was 1.0-1.5 ng / L (1.0-1.5 pg / ml), which could reduce the incidence of diabetes insipidus, infuse a large amount of isotonic solution and drink a large amount of water. The results of plasma antidiuretic hormone are low. Some diseases may be diabetes insipidus in children. The results of plasma antidiuretic hormone are high. Some diseases may be renal diabetes insipidus and malignant hypertension

matters needing attention

1. Don't eat too greasy and high protein food one day before blood drawing, and avoid heavy drinking. The alcohol content in the blood will directly affect the test results. 2. Fasting was performed 12 hours before blood sampling. 3. Blood should be relaxed, to avoid fear caused by vasoconstriction, increase the difficulty of blood collection.