There are three types of sleep apnea: obstructive, central, and mixed complex.

Obstructive apnea is the most common type.

It is caused by the relaxation of the soft tissues, which allows partial to total obstruction of the airway.

Choice A rationale:

Indomethacin (Indocin) is a nonsteroidal anti-inflammatory medication (NSAID). It is commonly used to reduce inflammation and relieve pain, making it a suitable choice for pain management in conditions where inflammation plays a role, such as arthritis or musculoskeletal injuries.

Choice B rationale:

Indomethacin is not typically categorized as an adjuvant analgesic. Adjuvant analgesics are medications that are not primarily designed for pain relief but may enhance the effects of analgesics when used in combination.

Choice C rationale:

Indomethacin is not a COX-2 inhibitor. COX-2 inhibitors are a specific class of NSAIDs that target the COX-2 enzyme while sparing COX-1. Indomethacin is a traditional NSAID that inhibits both COX-1 and COX-2.

Choice D rationale:

Indomethacin is not a narcotic analgesic. Narcotic analgesics, also known as opioids, are a separate class of medications used for the management of moderate to severe pain. Indomethacin does not belong to this class and has a different mechanism of action.

Choice A rationale:

Some older adults may indeed have concerns about taking pain medication, but this is not a primary reason for their hesitance to express pain. The fear of taking medication is not a universal characteristic of older adults.

Choice B rationale:

While older adults may be reluctant to bother nursing staff, this is not the primary reason for their reluctance to express pain. It is a consideration but not the main factor.

Choice C rationale:

The unawareness of discomfort is not a common reason for older adults to avoid expressing pain. Most older adults are aware of their discomfort but may not express it for other reasons.

Choice D rationale:

Older adults may have been culturally trained not to complain about pain or discomfort. In some cultures, stoicism and not burdening others with one's pain are highly valued. This cultural training can lead older adults to underreport their pain.

Choice E rationale:

Believing pain is a natural consequence of aging is a misconception, but it is not the primary reason why older adults may not express their pain. They may believe this, but cultural and societal factors have a more significant impact.