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Barry OR & def '12 Barry Intro to OR and definitions and classifications

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Barry OR & def '12 Barry Intro to OR and definitions and classifications Question Answer What temp range should the OR be? 20-23 c. or (68-73f) Room temp for peds, trauma, burns, or exposed areas warmer at least 24 c. Ideal OR humidity level 30 - 60% What is the min. # of air exchanges/hr in the OR? 15 exchanges per hour with a min. of 3 from outside air. Is the air pressure in the OR positive or negative Positive Micro shock dose/ risk factors 100 microAmps may cause VF, central line or pacer wires Macro Shock dose 100-300 miliAmperes What is Ohm's law V= I x R V= volts, I = current in amps, R= resistance (ohms) What clinical formula utilizes Ohms law? Blood pressure. BP= CO X SVR What does the isolation transformer do? Takes power to the OR and makes it not grounded. Is the O.R. grounded? NO! What is a LIM (line isolation monitor?) Monitors the potential for energy to flow from the isolated power supply to the ground Does the LIM provide saftey from electrocution. NO. Predicts amount of current that could flow if there were a second fault When does the LIM alarm? alarms if a high current flow to the ground is possible (2ma-5ma) or faulty equiptment is plugged in. What is the #1 occupational hazzard in Anesthesia? Substance Abuse What are the components of the fire triad? 1. Ignition source 2. fuel 3. oxidizers Do Nitrous and Oxygen function equally as oxidizers Yes! How big is the margin of "contamination" on a sterile field? 1 inch What parts of the Gown are sterile? From the front of the chest to the level of the sterile field. On the sleeves from 2 inches ubove the elbows to the cuff. What is the purpose of denitrogenation? replace aveolar nitrogen with O2 to achieve an intrapulmonary O2 reserve that will allow apnea to be as prolonged as possible with least amount of desaturation. Fills FRC with 100% O2. What are the 2 ways to preoxygenate? 100% Oxygen at tidal volumen for 3 min. using a well sealed facemask or 8 vital capacity maneuvers in 1 min. If you preoxygenate well how long can a healthy adult go apenic? 6-10 minutes What are the reasons for RSI? Full stomach, Trauma, Obese, pregnant, acute abdomen, Hiatal hernia, Gerd, PUD, Diabetes, n/v For RSI do you manually ventilate after you give the muscle relaxer? NO! How long do you hold chricoid pressure for RSI Until the airway is secured and the balloon is inflated and confirmation with positive End tidal CO2. What is teh Only absolute contraindication to regional anesthesia? Patient refusal. What is stage I? "Amnesia" Occurs during induction with loss of consciousness.Reflexes still intatct. From administration to LOC. Can the patient still feel pain in stage I? Yes! Stage II Delerium or excitement phase. From LOC to onset of surgical anesthsia. ***Move through this phase qu

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