護理師指導病人服用口服鐵劑，哪一點最需強調？
A nurse is teaching a client about prescribed oral iron supplements. Which point should the nurse emphasize?
- ALimit fiber intake to prevent diarrhea限制纖維攝取以防止腹瀉
- BIron is best absorbed with dairy products鐵劑與乳製品同服吸收最佳
- CTake the medication with an antacid與制酸劑（antacid）同服藥物
- DStools may become black in color✓ 正解糞便可能會變成黑色
口服鐵劑（Oral iron supplements）是治療缺鐵性貧血的常用藥物，但其代謝產物會造成腸胃道副作用。護理師最重要的職責是衛教病人關於藥物特性及吸收機轉，以提升服藥順從性並減少不必要的焦慮。臨床上需特別注意，鐵劑服用後會導致糞便顏色變深或呈黑色，這是藥物未被吸收部分經由腸道排出所致，屬於預期內的良性副作用，而非腸胃道出血，衛教此點可避免病人因恐慌而自行停藥。
Oral iron supplements are commonly used to treat iron-deficiency anemia, but their metabolic byproducts cause gastrointestinal side effects. The nurse's most important responsibility is to educate the client about the drug's properties and absorption mechanism in order to improve adherence and reduce unnecessary anxiety. Clinically, it is particularly important to note that iron causes the stool to darken or appear black after administration; this is caused by the unabsorbed portion being excreted through the intestine and is an expected, benign side effect rather than gastrointestinal bleeding. Educating the client on this point prevents them from panicking and discontinuing the medication on their own.