Commodities are raw materials intended for use or consumption. There are three main commodity classifications: Agriculture commodities (often referred to as soft commodities), energy commodities, and metal commodities (referred to as hard commodities). The most commonly traded commodities are crude oil, gold, silver, and copper. Commodity markets can include physical delivery, referred to as a spot contract. Most trades, however, are carried out through derivative trading using futures, forwards, CFD's, and options.
Donna Perrin, RGN, is practice development sister, A&E, Frimley Park Hospital, Surrey. Fluid resuscitation is one of the most important aspects of the acute medical management of critically ill patients.
1 Compare the body-compartment distribution of crystalloid and colloid resuscitation fluids in both trauma and non-trauma patients. 2  Discuss the rationale and the current evidence supporting the use of hypertonic saline as a resuscitation fluid. Discuss the development of a coagulopathy during fluid resuscitation for massive blood loss and the current recommendations or blood component therapy-when and with what. 2  Recognize the need for different protocols for urgent versus emergency transfusion situations along with the associated relative risks.