This topic contains a solution. Click here to go to the answer

Author Question: As a follow-up to the introduction of a new medication regimen for an older adult client, the ... (Read 41 times)

luvbio

  • Hero Member
  • *****
  • Posts: 623
As a follow-up to the introduction of a new medication regimen for an older adult client, the physician is interpreting the client's recent blood work, paying particular attention to the client's serum creatinine (Cr) levels
 
  (normal range 0.6 to 1.2 mg/100 mL) and glomerular filtration rate or GFR (normal value >60 mL/minute). Which of the following lab results would be considered typical of an older adult with impaired renal function?
  A)
  Cr 1.8; GFR 66
  B)
  Cr 2.3; GFR 30
  C)
  Cr 0.5; GFR 58
  D)
  Cr 1.1; GFR 22

Question 2

As part of a screening program for prostate cancer, men at a senior citizens' center are having their blood levels of prostate-specific antigen (PSA) measured.
 
  Which of the following statements would best characterize a high positive predictive value but a low negative predictive value for this screening test?
  A)
  All of the men who had high PSA levels developed prostate cancer; several men who had low PSA levels also developed prostate cancer.
  B)
  All of the men who had low PSA levels were cancer-free; several men who had high levels also remained free of prostate cancer.
  C)
  Men who had low PSA levels also displayed false-positive results for prostate cancer; men with high levels were often falsely diagnosed with prostate cancer.
  D)
  The test displayed low sensitivity but high specificity.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

chreslie

  • Sr. Member
  • ****
  • Posts: 307
Answer to Question 1

Ans:
D

Feedback:

Due to decreased muscle mass and consequent decrease in creatinine production, older adults often maintain normal creatinine levels even in the presence of impaired glomerular filtration and low GFR.

Answer to Question 2

Ans:
A

Feedback:

The test's inability to rule out cancer with a low PSA level indicates a low negative predictive value. Answer B suggests a high negative predictive value, while answer C indicates a low positive predictive value. High positive predictive value is associated with high sensitivity.




chreslie

  • Sr. Member
  • ****
  • Posts: 307

 

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

For a complete list of videos, visit our video library