Final answer:
Purnell's cultural domain "family roles in health care" encompasses various aspects such as perception of practitioners and the principal caregiver, highlighting the influence of family in healthcare decisions.
Explanation:
Purnell's cultural domain "family roles in health care" includes the perception of practitioners, body language, prayer, and the principal caregiver. In different cultures, the role and involvement of the family in healthcare decisions vary significantly. For instance, some cultures prioritize family members as decision-makers in healthcare.
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