AHIMA Healthcare Data Analytics 3

Question 1

Sensitivity and specificity are metrics used primarily to evaluate:

Accepted Answer

The accuracy of diagnostic tests or clinical decision support tools

Answer

Sensitivity measures a test's ability to correctly identify true positives, while specificity measures its ability to correctly identify true negatives—both evaluate diagnostic test performance.

Question 2

Which SQL aggregate function would an analyst use to calculate the average length of stay for patients in a specific DRG?

Accepted Answer

AVG()

Answer

The AVG() function returns the arithmetic mean of a numeric column, which directly computes the average length of stay across a group of patient records.

Question 3

A p-value of 0.03 in a healthcare outcome study indicates:

Accepted Answer

The result is statistically significant at the 0.05 alpha level

Answer

A p-value of 0.03 falls below the conventional 0.05 significance threshold, indicating the result is statistically significant, though this does not automatically imply clinical significance.

Question 4

Natural Language Processing (NLP) is most commonly applied in clinical analytics to:

Accepted Answer

Extract structured information from free-text clinical documentation

Answer

NLP enables computers to interpret and extract structured data elements from unstructured sources such as clinical notes, discharge summaries, and radiology reports.

Question 5

Which scenario best exemplifies 'secondary use' of health data?

Accepted Answer

A researcher analyzing de-identified EHR data to study diabetes outcomes

Answer

Secondary use occurs when health data originally collected for patient care is subsequently used for research, quality improvement, or public health purposes outside the original encounter.

(AHIMA) American Health Information Management Association Practice Test

(AHIMA) American Health Information Management Association Practice Test

AHIMA Healthcare Data Analytics 3