Nursing’s conceptual models, grand theories, and mid-range theories

Using the theory of unpleasant symptoms as a guide, what would you look for in an assessment tool for patient symptoms?Please correlate one of the following outcomes with this topic, and write about it • Critique nursing’s conceptual models, grand theories, and mid-range theories. • Examine the influence that nursing models and theories have upon research and practice. • Apply nursing theory or theories to nursing research.