A nurse is caring for a client who is taking antihypertensive medication and is moving from a supine to a sitting position.
Which of the following findings should indicate to the nurse that the client is experiencing orthostatic hypotension?
The client's heart rate increases by 10/min.
The client's diastolic blood pressure increases by 10 mm Hg.
The client reports heart palpitations.
The client's systolic blood pressure decreases by 25 mm Hg.
The Correct Answer is D
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
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.
Correct Answer is D
Explanation
A. Placing a pillow under the client's knees would not specifically address preventing a compromise in placental blood flow.
B. Reverse Trendelenburg involves tilting the bed so that the head is elevated and the feet are lower. While this position may help with respiratory difficulties (by allowing the diaphragm to expand), it does not address the concern of aortocaval compression, which is critical during pregnancy.
C. The lithotomy position is used for vaginal deliveries and involves placing the client's feet in stirrups, which is not appropriate for a cesarean birth.
D. The wedge position helps maintain blood flow to the placenta by relieving aortocaval compression, thereby improving venous return and placental perfusion. This is particularly important in pregnant clients, where the uterus can exert significant pressure on these blood vessels in the supine position.
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