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EQ anesthesia
2011 AAEP Focus on Dentistry & other articles
Question | Answer |
---|---|
What are 3 potential complications of a regional infraorbital nerve block within the pterygopalatine fossa | hematoma exopthalmos blindness |
What dose (volume) of lidocaine is suggested for the efbi infraorbital block? | 2 ml/100 kg |
What is the normal resting lactate in adult horses? | < 2 mmol/L |
What causes increased lactate? | hypoxemia, often secondary to decreased tissue perfusion |
How/when is lactate produced? | anaerobic glycolysis |
What is the recommended dose of hypertonic saline for intravascular volume resucitation? | 2L/500 kg horse |
What duration of benefit is gained by hypertonic saline bolus? | about 45 minutes |
What is the max rate of oral fluid administration (when given continuously as a trickle)? | 10L/hr |
What is the average tolerated oral fluid bolus rate when given intermittently? | 5L q2 hours |
how much blood volume expansion is achieved by each liter of hypertonic saline? | about 4.5L (because of volume redistribution from the extracellular space into the intravascular space) |
What is a shock dose of crystalloid fluids for a horse? | (60 to 90mL/kg or 30-45L pe r500kg horse) |
What is the volume of the extracellular fluid compartment compared to the intravascular fluid compartment? | ECF is ~ 3X the IVC |
What is the average blood volume of a healthy 500 kg horse? | 40L |
What is the total intravascular fluid expansion achieved by each 1L of hetastarch? | 2L (1L hetastarch + 1L redistributed ECF) |
What is the maximally effective fluid resucitation approach for Eq fluid? | 4 mL/kg hetastarch + 4 mL/kg hypertonic saline (better than either one alone) |