- hypoglycaemia/hyper/hypokalaemia/ other electrolyte imbalance
- Tension pneumothorax
- cardiac Tamponade
I remember the 4 H's in the format of a little picture of a man standing on top of a snow-covered mountain. He is struggling to breath as there's not much oxygen up there (hypoxia) and is shivering as its so cold (hypothermia). He is looking sad and in one hand is an empty water bottle (hypovolaemia) and in the other an empty lunchbox (hypoglycaemia... then remember the hypo/hyper kalaemia from that).
For the 4 T's I think of the less happy phrase of 'Thomas has Ten Toxic Tampons' (= Thombus, tension pneumothorax, toxins, tamponade)
So after a couple of nice straightforward battles let face a juicier one: pituitary tumours...