Which statement indicates a client may not be adhering to their medication regimen?

The statement indicating that a client may not be adhering to their medication regimen is one that raises concerns about potential medication side effects or the effectiveness of treatment. Gaining six pounds in one week can indicate fluid retention or a lack of effectiveness in managing a health issue, which may be linked to inconsistent medication use.

This rapid weight gain might suggest that the client's condition, such as heart failure, hypertension, or another issue, is not being adequately managed. If a client is not taking their prescribed medications as directed, these conditions could worsen, manifesting as sudden changes in weight. Therefore, this statement indicates a possible lack of adherence to the medication regimen and warrants further investigation into the client's medication-taking behavior and overall health status.

The other statements do not suggest non-adherence. Feeling more energetic may reflect a positive response to medication, regularly not missing pills indicates good adherence, and beginning a new workout routine could suggest that the client is feeling well and following an expected lifestyle change.