At the mobile surgery in Chester, Dr Devin Gray sends Scott for an ECG, suspecting he has a condition called Atrial fibrillation, which could lead to a stroke. Dr Chris Ferdinand reassures Lorraine that a numb patch on her leg is most likely down to her psoriasis, which he thinks he can help get under better control. Patient Ian is suffering pain down below, which Dr Claire Taylor thinks may be the result of poorly managed diabetes.