CCC Critical Care compendium 340
Delta Ratio

Delta Ratio = the increase in Anion Gap / the decrease in HCO3-. if one molecule of metabolic acid (HA) is added to the ECF and dissociates, the one H+ released will react with one molecule of HCO3- to produce CO2 and H2O (buffering).

CCC Critical Care compendium 340
Base Excess vs Standard Base Excess

Base excess is dose of acid or alkali to return in vitro blood to normal pH (7.40) under standard conditions ( at 37C at a PCO2 of 40 mm Hg). Standard base excess is dose of acid or alkali to return the ECF to normal pH (7.40) under standard conditions ( at 37C at a PCO2 of 40 mm Hg)

CCC Critical Care compendium 340
Cardiac Output

Cardiac Output (CO) = Stroke Volume (SV) x Heart rate (HR) CO = SV x HR changes based on exercise, age and body size. normal adult = 5L/min Stroke Volume (SV) determined by: Preload Afterload Contractility

CCC Critical Care compendium 340
Cardiac Arrest Literature Summaries

THERAPEUTIC HYPOTHERMIA AND TARGETED TEMPERATURE MANAGEMENT Nielsen N, et al. Targeted temperature management at 33°C versus 36°C after cardiac arrest. N Engl J Med. 2013 Dec 5;369(23):2197-206. [PMID 24237006] MCRCT without allocation concealment 36 ICUs in Europe and Australia n…

CCC Critical Care compendium 340
Beta Blockers to Prevent Perioperative MI

The use of Beta-blockers in perioperative medicine has been an issue of intense research in Anaesthesia. Patients that are believed to benefit from beta-blockers are those with risk factors for ischaemic heart disease (HT, DM, hypercholesterolaemia, previous MI, angina, controlled heart failure)