Which type of data provides measurable evidence to aid in client care planning?

Objective data is considered the correct answer because it consists of measurable and observable information that can be quantified or verified. This type of data includes vital signs, lab results, physical examination findings, and other measurable indicators that provide concrete evidence about a client’s health status. By using objective data, nurses can form a solid foundation for care planning, ensuring that interventions are based on factual information rather than personal perceptions or feelings.

In contrast, subjective data stems from the client's personal experiences, perceptions, and feelings. While this data is valuable for understanding the client’s perspective and needs, it is not directly measurable and may vary from one individual to another. Behavioral data focuses on the actions or responses of a client, which can be subjective in nature and does not provide the same level of concrete evidence as objective data. Qualitative data involves descriptive information that can give insights into experiences and emotions but lacks the quantifiable aspect necessary for measurable evidence.