Homework Answers
Answer is C. False
Reason: Some prostate cancers may not produce much Prostate Specific Antigen. So, it may lead to false negative results. In some cases, prostate cancers are slow growing. Sometimes, PSA may be increased during absence of cancer. So, it is not 100 percent reliable predictor.
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24. PSA screening is a good predictor of metastatic prostate cancer spread. (A) True (B) Unclear...
A prostate specific antigen (PSA) test is a quick screening test for prostate cancer. A researcher...
A prostate specific antigen
(PSA) test is a quick screening test for prostate cancer. A
researcher wants to evaluate it using two groups. Group A consists
of 1500 individuals who had biopsy-proven adenocarcinoma of the
prostrate while group B consists of 3000 age and race-matched
individuals all of whom showed no cancer at biopsy. The results of
the PSA screening test is each group is shown in the table below.
What is the population at risk?
Posiive for PSANegative for...
Prostate-specific antigen (PSA) test is a common screening test used for detecting prostate cancer. From Harvard Medical School “Prostate Knowledge” webpage. Is PSA reliable? Although PSA testing ca...
Prostate-specific antigen (PSA) test is a common screening test used for detecting prostate cancer. From Harvard Medical School “Prostate Knowledge” webpage. Is PSA reliable? Although PSA testing can help catch prostate cancer at an early stage, having an elevated PSA (generally considered more than 4 ng/ml) doesn’t necessarily mean that a man has cancer. Noncancerous conditions, including benign prostatic hyperplasia (BPH), or an enlarged prostate, and prostatitis, can raise PSA levels. In fact, studies have shown that about 75% of...
16. For whom would Prostate cancer screening (including PSA testing) be the most important. (A) white...
16. For whom would Prostate cancer screening (including PSA testing) be the most important. (A) white males > 70 years old (B) black males > 70 years old (C) black males 40 years old (D) none of A, B or C 19. In the US the majority of ortho-pharyngeal (throat) cancers happen in men over 70. (A) True (B) Unknown (C) False T U BUS IU mary care practice » Pubished Recommendations >> Recommendation Summary>> Final Recommendation Statement: Final Recommendation...
7. Screening for prostate cancer can be fraught with dilemmas because a. The PSA test may...
7. Screening for prostate cancer can be fraught with dilemmas because a. The PSA test may have false negatives b. Cancer can be present even with low levels of PSA c. The PSA does not differentiate between aggressive and slow-growing cancers d. All of the above 8. Patients at risk for colon cancer should have a colonoscopy every 3 to 5 years a. true b. false 9. A pilonidal cyst is: a. A rosette of red tissue seen protruding from...
A test for measurement of level of Prostate Specific Antigen (PSA) is a commonly used screening p...
A test for measurement of level of Prostate Specific Antigen (PSA) is a commonly used screening procedure for prostate cancer. Men with PSA levels greater than 10 nanograms per millilitre (ng/ml) (S) have 60% chance of prostate cancer (C), men whose PSA levels are between 4 ng/ml and 10 ng/ml (S) have 25% chance of having prostate cancer (C) and for men whose PSA levels are less than 4ng/ml (S), the risk of developing prostate cancer is 10% (C) Suppose...
What are the metastatic sites for Prostate cancer? Jon Doe a 60-year-old male, was diagnosed with prostate carcinoma...
What are the metastatic sites for Prostate cancer?
Jon Doe a 60-year-old male, was diagnosed with prostate carcinoma 15 months ago. At that time, he underwent a radical prostatectomy and was found to have disease confined to the prostate. Before surgery, his prostate specific antigen (PSA) was 25 ng/ml (normal <3.0). At a regular follow-up exam Mr. Doe's only complaint was mild backache, which he attributed to strain. His PSA was found to be 100 mg/ml and a CT scan...
Matching: ____ Metastatic neoplasm a) Known carcinogens ____ Cancer of tine lung, breast, prostate, b) An...
Matching: ____ Metastatic neoplasm a) Known carcinogens ____ Cancer of tine lung, breast, prostate, b) An acronym for the seven warning signs of And colon cancer ____ CAUTION c) Microscopic examination of live tissue ____ Basal and squamous skin cancer d) Responsible for the majority of cancer deaths ____ Biopsy e) Cells whose growth pattern has no purpose and Is uncontrollable ____ Liver, lungs, and brain f) Common sites of bloodstream metastasis ____ Ultraviolet (IJV) radiation, X-ray g) The most...
For every 100 men who have PSA blood test: 10 will have an elevated PSA 90...
For every 100 men who have PSA blood test: 10 will have an elevated PSA 90 will have a normal PSA Of the 10 with elevatged PSA: 3 are true positive 7 are false negative Of the 90 normal: 1 is false positive 89 are true negative (a)P(cancer)=? (b) How "sensitive" is PSA test? P(+|cancer)=? (c) How "specific" is the PSA test? P(-|no cancer)=? (d) If a man gets an elevated PSA test (+), what is the probability that he...
Prostate cancer can be diagnosed by: Select one or more: a. keeping track of frequency of...
Prostate cancer can be diagnosed by: Select one or more: a. keeping track of frequency of urge to urinate b. a digital (finger) rectal exam c. biopsy d. testicular self-exam e. A PSA, which is the most effective way to measure prostate cancer
What is the unique property of metastatic cancers? A. They spread to other tissues B. They...
What is the unique property of metastatic cancers? A. They spread to other tissues B. They grow out of control C. They lose contact inhibition D. They usually arise from mutations
A prostate specific antigen
(PSA) test is a quick screening test for prostate cancer. A
researcher wants to evaluate it using two groups. Group A consists
of 1500 individuals who had biopsy-proven adenocarcinoma of the
prostrate while group B consists of 3000 age and race-matched
individuals all of whom showed no cancer at biopsy. The results of
the PSA screening test is each group is shown in the table below.
What is the population at risk?
Posiive for PSANegative for...
16. For whom would Prostate cancer screening (including PSA testing) be the most important. (A) white males > 70 years old (B) black males > 70 years old (C) black males 40 years old (D) none of A, B or C 19. In the US the majority of ortho-pharyngeal (throat) cancers happen in men over 70. (A) True (B) Unknown (C) False T U BUS IU mary care practice » Pubished Recommendations >> Recommendation Summary>> Final Recommendation Statement: Final Recommendation...
7. Screening for prostate cancer can be fraught with dilemmas because a. The PSA test may have false negatives b. Cancer can be present even with low levels of PSA c. The PSA does not differentiate between aggressive and slow-growing cancers d. All of the above 8. Patients at risk for colon cancer should have a colonoscopy every 3 to 5 years a. true b. false 9. A pilonidal cyst is: a. A rosette of red tissue seen protruding from...
A test for measurement of level of Prostate Specific Antigen (PSA) is a commonly used screening procedure for prostate cancer. Men with PSA levels greater than 10 nanograms per millilitre (ng/ml) (S) have 60% chance of prostate cancer (C), men whose PSA levels are between 4 ng/ml and 10 ng/ml (S) have 25% chance of having prostate cancer (C) and for men whose PSA levels are less than 4ng/ml (S), the risk of developing prostate cancer is 10% (C) Suppose...
What are the metastatic sites for Prostate cancer?
Jon Doe a 60-year-old male, was diagnosed with prostate carcinoma 15 months ago. At that time, he underwent a radical prostatectomy and was found to have disease confined to the prostate. Before surgery, his prostate specific antigen (PSA) was 25 ng/ml (normal <3.0). At a regular follow-up exam Mr. Doe's only complaint was mild backache, which he attributed to strain. His PSA was found to be 100 mg/ml and a CT scan...
Prostate cancer can be diagnosed by: Select one or more: a. keeping track of frequency of urge to urinate b. a digital (finger) rectal exam c. biopsy d. testicular self-exam e. A PSA, which is the most effective way to measure prostate cancer
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