A nurse is caring for a client who is receiving intermittent enteral tube feedings. Which of the following factors places the client at risk for aspiration?

Choice A rationale:

An increase in heart rate by 10 beats per minute when moving from a supine to a sitting position is a normal physiological response to compensate for decreased venous return and maintain cardiac output. This response does not indicate orthostatic hypotension.

Choice B rationale:

An increase in diastolic blood pressure by 10 mm Hg when moving from a supine to a sitting position is a normal response to compensate for the effects of gravity on blood flow. It helps maintain perfusion to vital organs and does not indicate orthostatic hypotension.

Choice C rationale:

Heart palpitations can occur due to various reasons, including anxiety or arrhythmias, but they are not specific signs of orthostatic hypotension. This symptom alone does not confirm the presence of orthostatic hypotension.

Choice D rationale:

A decrease in systolic blood pressure by 25 mm Hg or more when moving from a supine to a sitting position indicates orthostatic hypotension. Orthostatic hypotension is defined as a drop in systolic blood pressure of 20 mm Hg or more or a drop in diastolic blood pressure of 10 mm Hg or more within 3 minutes of standing up. This condition can cause dizziness, lightheadedness, or fainting and can be a side effect of antihypertensive medications or other underlying medical conditions.

Upper gastrointestinal (GI) endoscopy: This procedure is often indicated for patients presenting with symptoms suggestive of gastrointestinal bleeding, such as dark, tarry stools (melena), which can indicate bleeding in the upper GI tract.

Dark tarry stool: This finding suggests the presence of digested blood, which typically originates from the upper GI tract. This symptom, along with a history of abdominal pain that worsens after eating, indicates a potential peptic ulcer or other upper GI pathology.