Final answer:
NSAIDs are expected to be prescribed for primary dysmenorrhea as they inhibit the synthesis of prostaglandins, which cause pain and inflammation, thus providing relief from the symptoms.
Step-by-step explanation:
The nurse should anticipate that a medication from the class of nonsteroidal anti-inflammatory drugs (NSAIDs) will be prescribed to a patient with primary dysmenorrhea because it blocks the synthesis of prostaglandins, which are known to induce pain and inflammation.
Prostaglandins sensitize nerves to pain and contribute to inflammation and lower blood pressure. NSAIDs, such as aspirin, ibuprofen, and naproxen, work by inhibiting the cyclooxygenase (COX) enzyme, which is critical for converting arachidonic acid into prostaglandins. Therefore, by blocking this process, NSAIDs effectively reduce inflammation and alleviate pain associated with conditions like dysmenorrhea.
However, while NSAIDs are effective in managing pain, they should be used carefully as long-term use can lead to gastrointestinal, liver, or kidney damage. Furthermore, education regarding the risks associated with the misuse of prescription pain medications, such as opioids, is also necessary.