During an assessment of an older adult, the nurse should expect to which finding as a normal physiologic change associated with the aging process?
Narrowing of the inferior vena cava, causing low blood flow and increases in venous pressure resulting in varicosities
Progressive atrophy of the intramuscular calf veins, causing venous insufficiency
Peripheral blood vessels growing more rigid with age, producing a rise in systolic blood pressure
Hormonal changes causing vasodilation and a resulting drop in blood pressure
The Correct Answer is C
A. Narrowing of the inferior vena cava, causing low blood flow and increases in venous pressure resulting in varicosities. The inferior vena cava does not significantly narrow with aging. Varicosities are more commonly due to valve insufficiency in the veins rather than vena cava narrowing.
B. Progressive atrophy of the intramuscular calf veins, causing venous insufficiency. Venous insufficiency is common in older adults, but it is primarily due to valve dysfunction and prolonged venous pressure rather than atrophy of calf veins.
C. Peripheral blood vessels growing more rigid with age, producing a rise in systolic blood pressure. Aging leads to arteriosclerosis, where blood vessels become stiffer, reducing their ability to expand and contract, which contributes to increased systolic blood pressure. This is a well-documented normal physiologic change in older adults.
D. Hormonal changes causing vasodilation and a resulting drop in blood pressure. While some hormonal changes occur with aging, they do not typically lead to significant vasodilation. In fact, the loss of vascular elasticity and autonomic dysfunction can contribute to postural hypotension, but not a generalized drop in blood pressure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Falsely low. Using an adult-sized cuff on a child results in an overestimation of the cuff size, causing the cuff to not inflate properly and distribute less pressure, leading to a falsely low blood pressure reading.
B. Indistinct. The reading may be inaccurate, but it will still produce a numerical value rather than being completely indistinct.
C. Accurate. Accuracy depends on using a cuff size appropriate for the child's arm circumference. An adult cuff on a child is too large, leading to an incorrect reading.
D. Falsely high. A too-small cuff would produce a falsely high reading, but an oversized cuff produces a falsely low blood pressure.
Correct Answer is ["2500"]
Explanation
Calculation:
To convert liters (L) to milliliters (mL), the conversion factor is:
1L = 1000mL
Given:
(2.5L×1000mL)/ 1L
= 2500mL
Thus, 2.5 L = 2500 mL.
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