When a person cuts a finger, nerve impulses travel to the spinal cord along afferent peripheral nerve fibers. What is this process?

A. Ask the client to take deep breaths. Deep breathing can help relax the anal sphincter, but if resistance is already encountered, forcing the thermometer further could cause injury.
B. Remove the thermometer and reinsert more forcefully. Forcing the thermometer can cause damage to the rectal mucosa, leading to pain, bleeding, or even perforation.
C. Apply mild pressure to advance. Any resistance suggests a possible obstruction, such as stool or anatomical issues. Applying pressure could cause harm, so the thermometer should not be advanced further.
D. Remove the thermometer immediately. If resistance is encountered, the safest action is to withdraw the thermometer to prevent injury. The nurse should reassess the situation and consider alternative temperature measurement methods.

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.