Pansy suffered from a chronic lung condition which required frequent courses of antibiotics. As her veins were poor and cannulation was difficult, a passport was inserted into a vein in her arm in which antibiotics and other solutions were administered. After three courses of antibiotics over the course of several weeks, the nurses had difficulty in administering the medication through the passport but finally succeeded. Subsequently, during a routine X-ray of her lungs, it was discovered that the tube connected with the reservoir had become disconnected and had moved down the vein towards the heart.