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Sydney HEMS acknowledges the Australian Aboriginal and Torres Strait Islander peoples as the first inhabitants of the nation and the traditional custodians of the lands where we live, learn and work.
Tag Archives: fluid
Intraosseous hypertonic saline is probably safe
A previous study on swine with uncontrolled haemorrhagic shock who were given intraosseous (IO) hypertonic saline demonstrated a high rate of complications such as soft tissue necrosis and venous thrombosis(1). This led to a recommendation of caution in patients requiring … Continue reading
RCT of 7.5% saline in head injury
Over a thousand patients in North America with blunt traumatic head injury and coma who did not have hypovolaemic shock were randomised to different fluids pre-hospital. 250 ml Hypertonic (7.5%) saline was compared with normal (0.9%) saline and hypertonic saline … Continue reading
Two smaller lines may be quicker
Using Poiseuille’s law and standardized gauge sizes, an 18-gauge (g) intravenous catheter (IV) should be 2.5 times faster than a 20-g IV, but this is not borne out by observation, in vitro testing, and manufacturer’s data. A nice simple study … Continue reading
Fluid Flow Through Intravenous Cannulae
Published flow rates for cannulae are derived from a test in which fluid runs through a perfectly straight cannula into an open receptacle. Laminar flow is expected in such a model in which the Hagen-Poisseuille formula tells us that flow … Continue reading
Greater Sydney Area HEMS 