A Positive ELISA Result Was Obtained for a Patient in Buffalo

question 13

Multiple Choice

A positive ELISA result was obtained for a patient in Buffalo, New York. According to the CDC,

• A)This is probably a false positive result because there are no HIV cases in Buffalo.
• B)This should be repeated twice by ELISA, and if positive, the fact that the patient is HIV antibody positive should be reported to the physician.
• C)This should be repeated twice by ELISA, and if positive, a western blot should be performed; and if positive the fact that the patient is HIV antibody positive should be reported to the physician.
• D)A western blot should be performed immediately; if it is positive, the fact that the patient is HIV antibody positive should be reported to the physician.

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Definitions:

Spearman Rank-Correlation

An assessment of rank correlation, not based on parameters, which evaluates the extent to which two variables' relationship can be represented through a monotonic function.

Pearson Correlation

is a measure of the linear correlation between two variables, quantifying the strength and direction of their relationship.

Two-tail Tests

Hypothesis tests that consider extreme values in both tails of the distribution to evaluate the likelihood of observing a relationship by chance in either direction.

Likert Scale

A psychometric scale commonly used in questionnaires to represent people's attitudes, opinions, or perceptions, where responses range from one extreme to another.