Final answer:
The nurse manager should intervene in option b) because a nursing student accessing a family member's medical records without permission violates HIPAA guidelines.
Step-by-step explanation:
The situation for which the nurse manager should intervene due to a violation of HIPAA guidelines is option b) A nursing student accessing a family member's medical records without permission for a case study. HIPAA regulations require healthcare providers to maintain strict confidentiality of patient records, and accessing medical records without permission is a violation of these guidelines.
Although it is important for healthcare professionals to discuss a client's care plan and condition, options a) and c) do not involve a violation of HIPAA guidelines. Such discussions are typically necessary for providing appropriate and coordinated care to the patient. Option d) also does not violate HIPAA guidelines, as discussing a client's lab results with them during rounds in a semi-private room does not involve disclosing confidential information to unauthorized individuals.