Tumor markers
tumor markers - ANS-not very useful in diagnosis , but they are useful in tumor staging ,
monitoring therapeutic responses , predicting patient outcomes , and detecting cancer
recurrence
Ideal characteristics for tumor markers - ANS-a . Measured easily
b . High analytical sensitivity of assay method
c . High analytical specificity of assay method
d . Cost - effective
e . Test results contribute to patient care and outcome
PSA, AFP, CEA, hCG, CA 15-3, CA 125, CA 19-9 - ANS-Common Tumor Markers
Prostate specific antigen ( PSA ) - ANS-Produced by epithelial cells of the prostate
gland and secreted into seminal plasma
Glycoprotein protease - ANS-functions in liquefaction of seminal coagulum
Enveloped, Complexed, Free PSA, Total PSA - ANS-Forms of PSA found in blood
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