A Patient's Laboratory Test Results Following Urine Analysis for Bladder

question 84

Multiple Choice

A patient's laboratory test results following urine analysis for bladder cancer markers demonstrate a positive finding for bladder cancer based on an nuclear matrix protein (NMP) 22 level of 11 units/mL.However, the requesting provider is concerned that this could be a false positive.Which of the following interfering factors would most likely result in a false-positive of this marker?

• A)Incorrect fixative
• B)Inadequate number of bladder cells in the specimen
• C)Inflammation of the bladder
• D)Gross contamination from blood

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Definitions:

Grouping Factor

A variable that categorizes participants into distinct groups for analysis in an experiment or study.

Variability Between Groups

Describes differences in variance among separate groups or categories in a dataset.

F Ratio

A statistical measure used in analysis of variance (ANOVA) to compare the variance among group means to the variance within groups.

F Test

A statistical test used to determine if there are significant differences between the variances of two or more groups.