Prostate Tumor Marker (PSA)

PSA is a "prostate-specific antigen" and is a tumor marker that can be used to screen for prostate cancer. With the increase of age, the incidence of prostate disease is increasing year by year, the incidence of prostate tumor is no exception, regular monitoring of TPSA and free PSA and its ratio, comprehensive doctor examination, early screening for prostate cancer, suitable for men over 40 years old. Basic Information Specialist classification: Oncology examination classification: semen and prostatic fluid examination Applicable gender: whether the male is fasting: fasting Tips: Please check the expedition to the department on the day of the inspection. Normal value Only a small amount of PSA (0 to 4 ng/ml) can be detected in normal male serum, and its concentration in semen is about 1 million times (0.5 to 5.5 mg/ml) of serum concentration. Clinical significance Abnormal results: blood PSA levels are closely related to prostate disease, no specificity for benign and malignant prostate diseases, various surgical procedures for prostate cancer, benign prostatic hyperplasia, prostatitis, acute urinary retention, prostate, and various prostates. In examinations (such as DRE), even a very slight injury can cause elevated serum PSA levels, and elevated prostate tissue per gram can increase serum PSA levels by 0.3 ng/ml, while prostate cancer tissue is elevated. 3.5ng/ml, the difference between the two is 10 times. People who need to be examined: those with prostate cancer family tendency, high-fat diet, and cadmium contact) should have regular physical examination and psa examination. Precautions Contraindications before inspection: Please check the expedition to the department on the day of the examination. Requirements for examination: Prostate massage and rectal examination can be done if necessary. It should be noted that the serum is not contaminated, resulting in false positives. Inspection process It is currently considered that PSA is an indispensable TM detection method for the diagnosis of prostate cancer with high specificity and sensitivity in clinical application. It is of great significance and significance for the diagnosis, therapeutic observation and prognosis monitoring of prostate cancer. Not suitable for the crowd Inappropriate people: Men who are over 50 years old are generally required to check without special requirements. Adverse reactions and risks No relevant information.