Final answer:
Nancy does not have the legal right to access her grandmother's health records as she is neither the executor of the estate nor has the permission of her aunt who is. Legal and ethical considerations regarding privacy continue to protect health records after death.
Step-by-step explanation:
The access to health records after the death of a patient is a sensitive issue that must take into account various legal and ethical considerations. Unfortunately for Nancy, as she is not the executor of her grandmother's estate and does not wish to involve her aunt who is, she may not be entitled to access the health records. The actual laws regarding the release of health records after a patient's death can vary depending on the jurisdiction; however, they generally continue to protect the right of privacy even after death, sometimes for a period extending many years or depending on the deceased's date of birth.
Given that health institutions are bound by laws such as the Health Insurance Portability and Accountability Act (HIPAA) in the United States, which governs the privacy of medical records, the appropriate response to Nancy would depend on these regulations. Typically, a representative of the deceased's estate or next of kin would have the authority to request such information. Without the approval of the authorized person, or if the stipulated timeframe post-mortem during which privacy rights are maintained has not elapsed, Nancy would not have the legal right to obtain her grandmother's health records.