The physician orders ibuprofen 600 mg po prn for cramping. The medication is supplied in 200-mg capsules. How many capsules will the nurse administer?

A. Due to a specific stimulus. Pain can occur with or without an identifiable stimulus. Conditions like neuropathic pain or phantom limb pain exist without an obvious external cause.
B. Caused by a single physiological situation. Pain can result from multiple factors, including tissue damage, nerve dysfunction, inflammation, and psychological influences. It is not limited to one specific physiological cause.
C. Universally the same for everyone. Pain perception varies widely between individuals due to differences in pain tolerance, cultural background, past experiences, and psychological state.
D. Subjective. Pain is defined as whatever the patient says it is, making it a subjective experience. It cannot be measured objectively, and the best indicator of pain is the patient’s self-report.

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.