Prolactin (PRL)

Prolactin mainly promotes the growth and development of breast and the formation of milk. It is a protein hormone secreted by the pituitary gland and consists of 199 amino acid residues. Its effect on the mammary gland and lactation is mainly to promote the growth and development of the mammary gland, causing and maintaining lactation. Basic Information Specialist classification: maternity check check classification: endocrine examination Applicable gender: whether women are fasting: fasting Tips: After 8 pm on the day before the medical examination, you should fast, so as not to affect the detection of indicators such as blood glucose in the second sky. Normal value Male (adult) <20 μg/L (<20 ng/ml). Female follicular phase <23μg / L (<23ng / ml). The luteal phase is 5-40 μg/L (5-40 ng/ml). <80μg/L (<80ng/ml) in the first 3 months of pregnancy. <160 μg/L (<160 ng/ml) at 3 months of pregnancy. <400 μg/L (400 ng/ml) 3 months after pregnancy. Menopause: <0.91nmol/L. Clinical significance (1) rise 1 physiological pregnancy, breastfeeding. 2 pathological pituitary tumor, granuloma, head pharyngeal tumor, histiocytosis X, acromegaly, pituitary adenoma metastasis to the upper part of the sella, hypoglycemia, stress state, primary hypothyroidism, before Chest injury (trauma, surgery, herpes zoster), mental illness, medication (hypotonic, tranquilizer, birth control, anti-shock), polycystic ovary, renal insufficiency, etc. (2) lower Sheehan syndrome (Xihan syndrome), anterior pituitary hypofunction, single prolactin deficiency, partial pituitary tumors. Low results may be diseases: pituitary tumor, premature delivery, pituitary adenoma, low menstrual flow results may be high disease: breast overflow, women hirsutism, milk spill disease precautions First, the precautions before blood draw 1, do not eat too greasy, high-protein food the day before the blood, to avoid heavy drinking. The alcohol content in the blood directly affects the test results. 2. After 8 pm on the day before the physical examination, fasting should be done to avoid affecting the detection of indicators such as blood glucose in the second sky. 3, should relax when taking blood, to avoid the contraction of blood vessels caused by fear, increase the difficulty of blood collection. Second, should pay attention after blood draw 1. After blood is drawn, local compression is required at the pinhole for 3-5 minutes to stop bleeding. Note: Do not rub, so as not to cause subcutaneous hematoma. 2, the pressing time should be sufficient. There is a difference in clotting time for each person, and some people need a little longer to clotting. Therefore, when the surface of the skin appears to be bleeding, the compression is stopped immediately, and the blood may be infiltrated into the skin due to incomplete hemostasis. Therefore, the compression time is longer to completely stop bleeding. If there is a tendency to bleed, the compression time should be extended. 3, after the blood draw symptoms of fainting such as: dizziness, vertigo, fatigue, etc. should immediately lie down, drink a small amount of syrup, and then undergo a physical examination after the symptoms are relieved. 4. If there is localized congestion, use a warm towel after 24 hours to promote absorption. Inspection process PRL radioimmunoassay. Not suitable for the crowd People with reduced hematopoietic function such as leukemia, various anemia, myelodysplastic syndrome, or people with thrombocytopenia should pay attention to blood draw, and should not take more or more blood. Adverse reactions and risks 1. After the blood is drawn, do not press the needle hole to avoid subcutaneous hematoma. If there is a small piece of bruise in the blood, it is slightly tender, please don't panic, you can do hot compress after 24 hours to promote the absorption of blood. The general small amount of congestion will gradually absorb in 3 to 5 days and the color will become lighter and return to normal. 2. After the blood draw, symptoms such as dizziness, vertigo, fatigue, etc. should be immediately supine, drink a small amount of syrup, and then undergo a physical examination after the symptoms are relieved.