If Savanah has been diagnosed with panic attacks and her doctors are using this machine which will beep once her heart rate speeds up in order for her to be able to lower and control it better, this means that they are most likely using a biofeedback machine. These type of machines work exactly like mentioned in the question and have been used for things like these.
Answer:
Endometrial biopsy
Explanation:
Based on the information given about the 50 years old woman the next best step in the management of the woman is for her to undergo ENDOMETRIAL BIOPSY procedure reason been that with ENDOMETRIAL BIOPSY procedure the medical practitioner will take out a sample tissue of the lining of the woman uterus which is also known as endometrium so that the medical practitioner can evaluate the tissue and to check for cause of problems in the woman uterus which will help the medical practitioner to easily form the diagnosis or to diagnosed the cause of the woman bleeding problem.
Therefore the next best step in the management of this patient is to carried out ENDOMETRIAL BIOPSY procedure on her.