RHIT Healthcare Statistics and Analytics 5

Question 1

A hospital's case mix index (CMI) increased from 1.45 to 1.62 over one year. What is the most likely implication?

Accepted Answer

The hospital is treating more complex patients, leading to higher expected reimbursement

Answer

The hospital is treating less complex patients on average

Answer

The average length of stay has decreased

Answer

The hospital's mortality rate has increased

Question 2

Which type of chart is most commonly used in statistical process control (SPC) to monitor whether a healthcare process is in control over time?

Accepted Answer

Control chart

Answer

Pareto chart

Answer

Histogram

Answer

Fishbone diagram

Question 3

An RHIT notices that the same patient's blood pressure is recorded as 120/80 mmHg in one system and 12/80 mmHg in another due to a data entry error. Which data quality dimension is compromised?

Accepted Answer

Accuracy

Answer

Completeness

Answer

Timeliness

Answer

Accessibility

Question 4

In epidemiology, the attack rate is BEST described as:

Accepted Answer

The proportion of exposed individuals who develop the disease during an outbreak

Answer

The number of new disease cases per 100,000 population annually

Answer

The total number of cases in a population at a given point in time

Answer

The rate at which a disease spreads from person to person

Question 5

A hospital uses a dashboard to display key performance indicators (KPIs). Which of the following is the BEST example of an outcome measure?

Accepted Answer

Percentage of patients who developed a hospital-acquired pressure injury

Answer

Number of hand hygiene compliance audits conducted per month

Answer

Average time from admission order to bed assignment

Answer

Number of nurses trained in sepsis protocol

Question 6

What does the term 'incidence rate' measure in healthcare statistics?

Accepted Answer

The number of new cases of a disease occurring in a population over a specific period

Answer

The total number of existing cases of a disease in a population at a specific time

Answer

The proportion of deaths among individuals diagnosed with a disease

Answer

The frequency of adverse events per 1,000 patient days

Question 7

When a healthcare analyst uses regression analysis to predict patient length of stay, what is the dependent variable?

Accepted Answer

Length of stay

Answer

Patient age

Answer

Primary diagnosis code

Answer

Number of comorbidities