Ask the nurse to explain the type of angina he is experiencing.
The nurse explains the pain is due to the imbalance of myocardial supply.

Choice A rationale

Using an “ouch” scale, such as the Wong-Baker FACES Pain Rating Scale, is appropriate for young children. It allows them to express their pain intensity in a way that is understandable and relatable to their age group.

Choice B rationale

Encouraging a six-year-old to request pain medication may not be effective, as they might not understand when they need it or might be reluctant to ask.

Choice C rationale

Waiting to administer pain medication until the child begins to cry can delay pain relief, leading to unnecessary discomfort and anxiety.

Choice D rationale

Asking a young child to rate their pain on a scale of 1 to 10 might be confusing and less effective than using a more child-friendly method like the “ouch” scale.

Choice A rationale

Sumatriptan does not cause vasodilation of peripheral blood vessels. Instead, it has vasoconstrictive properties.

Choice B rationale

Sumatriptan does not depress pain response in the central nervous system. Its primary action is on the cranial blood vessels.

Choice C rationale

Sumatriptan is a selective serotonin receptor agonist that causes vasoconstriction of cranial blood vessels, relieving migraine headaches.

Choice D rationale

Sumatriptan does not bind to acetylcholine receptors or prevent nerve transmission. It specifically targets serotonin receptors in cranial blood vessels.