Recognising the sick patient Flashcards
what is the weil definition of shock?
Reduction of effective blood flow and inadequate tissue perfusion with decreased delivery of oxygen to the capillary exchange bed.
What does the oxygen delivery index include?
Cardiac output, Haemoglobin, oxygen sats are the main things
what is normal oxygen delivery index?
20-25 litres per minute.
what are problems with inadequate oxygen delivery?
Pyruvate can’t go into the krebs cycle so leads to carbon dioxide, lactate and hydrogen ion build up.
what is the traditional approach to the sick patient?
A= airway and oxygenation
B= Breathing and ventilation
Circulation and shock
Disability
what is one of the most important signs of clinical deterioration?
Respiratory rate
What are causes of a low resp rate?
Drug related or neurological
what are causes of a high resp rate?
Key sign of a sick patient
what are the phases of septic shock?
Failure of arterial tone
Increase in CO for oxygen delivery
What is a fluid challenge?
You give excess fluid to increase preload and therefore contraction
what is a positive response for a fluid challenge?
Heart rate decrease mean arterial pressure increase Arterial pulse pressure increase Urine output increase Lactate clearance increase