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Tumor markers Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution $7.99   Add to cart

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Tumor markers Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution

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Tumor markers Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution

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  • June 19, 2024
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  • 2023/2024
  • Exam (elaborations)
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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

a2 - macroglobulin - ANS-lacks immunoreactivity

a₁ - antichymotrypsin - ANS-immunologically detectable

Free PSA - ANS-not complexed to protease inhibitor ; immunologically detectable

Total PSA - ANS-assays measure complexed and free PSA forms , as they are
immunologically detectable .

up to 2.5 ng / mL - ANS-Early detection guidelines endorse lower cutoff of PSA

perform biopsy - ANS-PSA > 2.5 ng / mL

PSA velocity - ANS-measurement of the rate of change per year .

lower - ANS-Men with prostate cancer tend to have _________ % free PSA

free PSA / total PSA - ANS-lower % free PSA computation

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