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 C
Explanation
A. Always take the patient's blood pressure manually using a sphygmomanometer. While manual BP measurements can be more accurate, they are not the priority intervention for orthostatic hypotension, which primarily involves position changes and fall prevention.
B. Monitor the patient's neurological status carefully for symptoms of a stroke. Orthostatic hypotension can cause dizziness or fainting, but it is not a direct cause of stroke. Neurological assessment is important if symptoms arise but is not the primary intervention.
C. Assist the patient to sit and stand slowly when getting out of bed. Orthostatic hypotension causes a sudden drop in blood pressure upon standing, increasing the risk of falls and syncope. The priority action is to help the patient transition slowly from lying to sitting and standing to allow the body to adjust.
D. Check the patient's blood pressure on a lower extremity using a thigh-sized cuff. Lower extremity BP measurements are not standard for managing orthostatic hypotension. Blood pressure should be checked in both lying, sitting, and standing positions to monitor for significant drops.
Correct Answer is C
Explanation
A. Remove fans to prevent premature chilling. While preventing rapid cooling is important in some cases, this action is not the priority. The patient’s symptoms suggest heat-related illness, which requires immediate assessment.
B. Apply a hyperthermia blanket to lower temperature slowly. Hyperthermia blankets are typically used in controlled environments for gradual cooling, but first, the patient’s temperature must be assessed to determine the severity of heat-related illness.
C. Take the patient's temperature and vital signs. Confusion and muscle cramps after working in heat suggest possible heat exhaustion or heatstroke, which can be life-threatening. Assessing temperature and vital signs is the priority to determine the severity and guide further treatment.
D. Place the patient in a tub of iced water. Ice water immersion is appropriate for severe heatstroke with a dangerously high core temperature, but cooling measures should only be initiated after confirming hyperthermia with a temperature assessment.
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