— 藥理與非經腸給藥 · EASY · MCQ —
護理師在進行皮下肝素（Heparin）注射時，下列哪項做法是不適當的？
A nurse is administering subcutaneous heparin. Which action is inappropriate?
- AInjecting the medication into the abdomen將藥物注入腹部
- BRotating injection sites for each dose每次給藥時輪替注射部位
- CMassaging the injection site after administration✓ 正解給藥後按摩注射部位
- DUsing a 25-27 gauge needle使用 25-27 gauge 的針頭
— Explanation · 中文詳解 —
皮下注射肝素（Heparin）旨在預防血栓形成。注射技巧的核心在於避免局部組織受損與出血。注射後按摩會造成局部微血管破裂，增加皮下血腫（hematoma）與瘀青的風險。此外，注射部位應選擇腹部脂肪層，並需進行部位輪替（rotation）以防止脂肪萎縮（lipodystrophy），同時需選用較細的針頭以減少疼痛。
Fluctuation of the fluid level in the water seal chamber, known as tidaling, is a normal finding that reflects pressure changes in the pleural space during respiration. This indicates that the chest tube system is patent and functioning correctly to drain air or fluid from the pleural cavity.