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PHCH Test Correctly Solved

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Which of the following is extremely important for a cancer test? A. All of these B. Positive predictive value C. Sensitivity D. Negative predictive value - A Which of the following markers typically requires testing of biopsied material rather than serum? A. CEA B. CA19-9 C. CA 125 D. H...

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  • March 24, 2025
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • PHCH
  • PHCH
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kharowl
PHCH Test Correctly Solved

Which of the following is extremely important for a cancer test?
A. All of these
B. Positive predictive value
C. Sensitivity
D. Negative predictive value - ✅✅ A


Which of the following markers typically requires testing of biopsied material
rather than serum?
A. CEA
B. CA19-9
C. CA 125
D. HER-2 - ✅✅ D


Elevated CEA levels are often used as indication of which type of cancer?
A. Breast
B. Ovarian
C. Colon
D. Thyroid - ✅✅ C


Which of the following is the best predictor of prostate cancer?
A. Elevated serum HCG

, B. Elevated levels of free serum PSA
C. Elevated levels of serum bound PSA
D. Elevated levels of serum CEA - ✅✅ C


Which of the following is NOT true for CEA?
A. It is produced on all surfaces of the intestinal cells
B. It is an intracellular adhesion molecule
C. It is highly glycosylated
D. Its levels tend to be elevated in smokers - ✅✅ A


The fecal occult blood test (FOBT) involves which of the following?
A. Antibody binding of hemoglobin
B. All of these
C. ELISA for detection of CEA in stools
D. Oxidation of a plant compound called guaiac - ✅✅ D


disorder of the thyroid caused by autoimmune reaction to TSH receptor is
_________?
A) Euthyroid disease
B) Hashimoto's thyroiditis
C) Sick euthyroid syndrome
D) Grave's disease - ✅✅ D


What is the most common type of laboratory assay that is widely used to assess
thyroid hormone concentrations such as FT4?
A) Estimation based on formula

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