NAHQ CPHQ Exam With Confidence Using Practice Dumps

A control chart, also known as a Shewhart chart or process-behavior chart, is a statistical tool used to monitor how a process changes over time. It helps distinguish between common causevariations (natural fluctuations inherent to the process) and special cause variations (unexpected fluctuations due to specific factors). By plotting data points in time order and establishing upper and lower control limits, control charts enable quality professionals to identify when a process is operating outside of its expected parameters, signaling the need for further investigation.

In contrast, a bar chart is a graphical representation of categorical data with rectangular bars, a Pareto chart is a type of bar chart that identifies the most significant factors in a dataset, and a run chart displays data points over time without control limits. While these tools are useful for various purposes, they do not provide the same level of insight into process stability and variation as control charts.

Monitoring process stability in quality improvement requires a tool that shows variation within acceptable limits over time.

Option A (Scattergram): Scattergrams show relationships between variables, not process variation.

Option B (Histogram): Histograms display data distribution, not variation over time.

Option C (Run chart): Run charts show trends but do not define expected variation ranges.

Option D (Control chart): This is the correct answer. The NAHQ CPHQ study guide states, “Control charts display process data over time with upper and lower control limits, indicating the expected range of variation in a stable process” (Domain 2).

CPHQ Objective Reference: Domain 2: Health Data Analytics, Objective 2.3, “Use data display tools,” emphasizes control charts for process stability. The NAHQ study guide notes, “Control charts monitor variation within defined limits” (Domain 2).

Rationale: Control charts assess process stability, aligning with CPHQ’s data analytics principles.

Certain adverse events in healthcare must be reported to regulatory or accreditationorganizations such as The Joint Commission (TJC), Centers for Medicare & Medicaid Services (CMS), and state health departments. Reporting these events helps in improving patient safety, reducing harm, and ensuring compliance with quality standards.

Among the options, wrong-site surgery (Option B) is a sentinel event and must be mandatorily reported to The Joint Commission and other regulatory bodies.

Understanding Sentinel Events

A sentinel event is a serious, preventable adverse event that results in severe harm or death. According to The Joint Commission, wrong-site surgeries are considered a Never Event, meaning they should never occur in a well-functioning healthcare system.

Why Other Options Are Incorrect:

Medication error (Option A):

Medication errors are common, but not all require mandatory reporting unless they lead to severe patient harm or death.

Some state agencies and CMS may require reporting depending on severity.

Patient fall (Option C):

Falls are a significant safety issue but only require reporting if they result in serious injury or death.

Organizations like CMS require reporting of falls that lead to fractures, head injuries, or major harm.

Patient grievance (Option D):

While patient grievances should be tracked internally, they do not require mandatory reporting unless they involve safety concerns leading to serious harm.

Thus, Option B (Wrong-site surgery) is the correct answer because it is classified as a sentinel event requiring immediate regulatory reporting.