A Practicing Physician at a University Student Healthcare Facility Often

question 10

Multiple Choice

A practicing physician at a university student healthcare facility often recommends to student patients that they take large doses of vitamin C (ascorbic acid) to fend off colds during the semester.As director of the chemistry laboratory that serves this facility,you notice a trend in that many of this physician's students' serum creatinine levels are unusually high.You are currently using a type of analysis based on the Jaffe reaction.What might be the cause of the elevated values?

• A) High doses of ascorbic acid cause increased hepatic synthesis of bilirubin,which interferes with the enzymes used in the assay.
• B) Elevated ascorbic acid in serum produces a Jaffe-like chromogen in this analysis that can be interpreted as increased serum creatinine.
• C) It may be that this physician's patients all are exhibiting increased muscle breakdown.
• D) The ketones and ketoacids produced from the breakdown of creatinine in the students' serum are interfering with the development of the color reaction.

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Definitions:

Cardiovascular Health

Pertains to the overall condition of the heart and blood vessels, underlining the importance of preventing heart diseases and maintaining function.

Aerobic

Pertaining to or involving oxygen; aerobic exercise refers to activities that increase oxygen circulation to improve endurance and cardiovascular health.

Anaerobic

Relating to, involving, or requiring an absence of free oxygen, often referring to exercise that causes muscles to produce energy without relying on oxygen.

Isometric

Pertaining to exercises or muscle actions where the muscle length does not change and joints remain stationary.