Raynaud's phenomenon and acrocyanosis

Amyloidosis

HIV infection

Sjögren's syndrome

Macrocytosis (increased MCV)

Carbon monoxide poisoning

Chronic lymphocytic leukaemia (CLL)

Rheumatoid arthritis

Cardiopulmonary resuscitation (CPR)

Ear wax

Drug poisoning

An unconscious patient

Myocarditis

Pulmonary hypertension

Thrombocytopenia

Cirrhosis of the liver

Polymyalgia rheumatica

Secondary anaemia

Prehospital emergency care

Bradycardia