An Epidemiologic Study Is Conducted to Evaluate the Long-Term Complications

question 113

Multiple Choice

An epidemiologic study is conducted to evaluate the long-term complications of coronary stent placement.  10,000 patients who underwent emergency or elective percutaneous coronary intervention at tertiary care centers around the nation were randomly selected and monitored for the development of adverse events.  According to the study results, 2% of patients who received bare metal stents developed stent thrombosis within a year.  40% of the patients who developed stent thrombosis died as a result.  The risk of death in a patient who develops stent thrombosis is best described by which of the following epidemiologic parameters?

• A)Attack rate
• B)Case fatality rate
• C)Median survival time
• D)Mortality rate
• E)Standardized mortality ratio

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Definitions:

Lith/o

A prefix in medical terminology meaning "stone," often used to describe conditions related to the formation of calculi or stones in the body, such as lithotripsy.

Olig-

A prefix denoting few or scanty, often used in medical and scientific terms.

Lithotripsy

A medical procedure that uses shock waves or a laser to break down stones in the kidney, bladder, or urinary tract into smaller pieces that can be passed naturally.

Polyuria

The production of abnormally large volumes of dilute urine, which can be a symptom of various conditions, including diabetes insipidus and diabetes mellitus.