Male infertility HCG stimulation test

Male infertility HCG stimulation test HCG is human chorionic gonadotropin, which is secreted by the placenta of pregnant women and has the activity of ICSH, which stimulates the synthesis of testicular stromal cells and secretes testosterone. Basic Information Specialist classification: male examination inspection classification: blood examination Applicable gender: whether the male is fasting: fasting Analysis results: Below normal: Normal value: no Above normal: negative: The cryptorchidism response is low or close to normal. Positive: It is suggested that functional testicular tissue does exist. Tips: Do not overeating (especially drinking) the day before, to ensure adequate sleep, to avoid affecting the results. Normal value Testosterone levels were normal and negative. Clinical significance Abnormal result Human chorionic gonadotropin (HCG) stimulation test positive (injection of testosterone after HCG) suggests that functional testicular tissue does exist. In patients without testosterone, the testosterone base value is low and the HCG test is negative (testosterone does not increase after HCG injection). The cryptorchidism response is low or close to the normal level, because the warm stimulation of the cryptorchidism mainly damages the spermatogenic function of the seminiferous tubule, while the interstitial cells still maintain the function of secreting testosterone. People who need to be checked Those with low testosterone levels. Positive results may be diseases: no testicular disease, cryptorchidism considerations in children Taboo before inspection: 1. Do not overeating (especially drinking) the day before, to ensure adequate sleep and avoid affecting the results. 2. Gonadotropin-releasing hormone (GnRH) stimulation test must be fasted for 8-12 hours. 3, if there is a history of dizziness, fainting, please inform the blood pumping nurse, in order to take preventive measures. 4. Roll the sleeves to 5 cm above the elbow joint before drawing blood. Requirements for examination: After blood collection, use a sterile cotton ball to squeeze the puncture site for 3-5 minutes to stop bleeding, and relax the sleeves of the upper jaw. Do not rub the puncture site to avoid "cyan" in local congestion. Do not touch the puncture point after hemostasis to avoid infection. Occasionally, due to factors such as fasting, poor rest, and nervousness, the mountain is now "stunned": dizziness, pale face, weak body, and difficulty breathing. At this point, you should immediately ask the doctor for help. At the same time, you can lie flat on the waiting chair, loosen your belt, take a deep breath, and get relief after a few minutes with the help of a doctor. People with a history of "halo" can bring some candy, chocolate, etc. the next time they take the blood. After taking the blood, they can be taken immediately to avoid such a phenomenon. Inspection process Test method: Blood was taken for control on the first day, and HCG2000 IU was injected into the posterior muscle. On the fourth day, the second intramuscular injection of HCG2000 international unit was performed after blood was drawn. Blood was drawn on the 7th day. Testosterone was measured in 3 times of blood. In patients with undeveloped testicular or cryptorchidism, two intramuscular injections of HCG are not sufficient to cause adequate response. If necessary, intramuscularly, HCG2000 international units are administered every 3 days for a total of 12 times. Blood is taken before each injection to determine testosterone. Not suitable for the crowd 1. Patients who have taken thyroid hormones, steroid hormones, etc., may affect the results of the examination and prohibit patients who have recently taken the drug history. 2, special diseases: patients with hematopoietic function to reduce disease, such as leukemia, various anemia, myelodysplastic syndrome, etc., unless the examination is essential, try to draw less blood. Adverse reactions and risks 1, subcutaneous hemorrhage: due to pressing time less than 5 minutes or blood draw technology is not enough, etc. can cause subcutaneous bleeding. 2, discomfort: the puncture site may appear pain, swelling, tenderness, subcutaneous ecchymosis visible to the naked eye. 3, dizzy or fainting: in the blood draw, due to emotional overstress, fear, reflex caused by vagus nerve excitement, blood pressure decreased, etc. caused by insufficient blood supply to the brain caused by fainting or dizziness. 4. Risk of infection: If you use an unclean needle, you may be at risk of infection.