A 44-year-old female presents with dizziness and syncopal episodes when transferring from a sitting to a standing position. Blood pressure in the sitting position is 130/80 mmHg. Blood pressure in the standing position is noted to be 90/50 mmHg. It is noticed that her pulse rate in the sitting position is 80 beats per minute, while it is 105 beats per minute when standing. Based on this information, which of the following is the cause of the patient’s postural hypotension?

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The material on the PANCE and PANRE is organized by the NCCPA into two dimensions, as indicated in the content blueprint for the examination. - Organ systems and the diseases, disorders and medical assessments physician assistants encounter within those systems; and - The knowledge and skills physician assistants should exhibit when confronted with those diseases, disorders and assessments. Medical Content Categories % Allocation: Cardiovascular System 13% Dermatologic System 5% Endocrine System 7% Eyes, Ears, Nose, and Throat 7% Gastrointestinal System/Nutrition 9% Genitourinary... Show more

A 44-year-old female presents with dizziness and syncopal episodes when transferring from a sitting to a standing position. Blood pressure in the sitting position is 130/80 mmHg. Blood pressure in the standing position is noted to be 90/50 mmHg. It is noticed that her pulse rate in the sitting position is 80 beats per minute, while it is 105 beats per minute when standing. Based on this information, which of the following is the cause of the patient’s postural hypotension?