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Anesthesia Lab

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moonlup's version from 2017-04-21 10:41

Section

Question Answer
Bag Size Calculation10-20 mL/kg x6
Gas Flow PathSource, Pressure Regulator, O2 Flow Meter, Vaporizer, Common Gas Outlet, Inhalation Valve, Patient, Exhalation Valve, Soda Lime/Scavenge
O2 Machine Leak TestOcclude breathing tube, close pop off valve, turn on O2 to 30 cmH2O, Turn off O2, monitor pressure, Open Pop Off, Empty Bag, Release Tube
Order of Monitoring EquipmentCapnometer, Pulse Ox, BP Cuff, ECG, Temp/Steth/Doppler
COHR x SV
MAPDAP + 1/3(SAP-DAP)
What BP tells youabout CO and heart load
What does Doppler tell you?Blood is moving
Where can you take Doppler?Dorsal pedal aa in MT, Palmar a in front MC, Coccygeal a
Where can you take oscillometic BP?tail, MT, tibia, R&U
Capnometer displays...ETCO2
Normal ETCO2 values35-45 mmHg dogs, 30-35 cats
Capnogram with narrow peaksuninflated ET cuff
Shark fin CapnogramObstructed ET, Bronchospasm, COPD, emphysema
Hypoventilation Capnogramincreased metabolism, hyperthermia, increased CO
Hyperventilation CapnogramDecreased metabolism, hypothermia, decreased CO, pulmonary embolism
Pulse Ox measures...Pulse rate, Hemoglobin O2 saturation in peripheral arterial blood
Abnormal Pulse Ox ReadingsPigment, abnormal Hb, CO poisoning, low perfusion, decreased CO, increased vasoconstriction
PaO2 formulaFiO2 x5 = mmHg (so 100% O2 = 500 mmHg)
Normal PaO2Dog 87-100, Cat 100-110, Horse 80-100
ECG measures...electrical function, rhythm, and rate
ECG normal when abnormalhypovolemia, cardiopulmonary arrest
Normal Heart Rate under anesthesiaDog >60, Cat >100, Horse >20
What drugs cause bradycardia?opioids, A2 agonists
What drugs reverse bradycardia?Glycopyrolate, Atropine
Describe AV Block ECGs1: increased PR interval, 2: dropped beats, 3: independent P
VPCVentricular Premature Contractions, wide and extra QRS, treat if 2 in a row, thiopental can cause
Gas tank sizesE (680L, 1900PSI), H (6900L, 2200PSI)
DISSDiameter Index Safety System, O2 line to machine
PISSPin Index Safety System, cylinder yoke
Fresh Gas Flow for Non-Rebreathing System400-600 mL/kg/min (more accurate is ((10-15 mL/kg x kg)RR)System Factor = mL/min)
Fresh Gas Flow for Rebreathing SystemL: 20 mL/kg/min H: 40(horse)-100(dog) mL/kg/min
Proper name of cuff thingPilot Tube with Balloon
Hypotensive fluid ratesBolus LRS 10ml/kg, Colloids 5ml/kg then CRI, Hypertonic saline max 5mL/kg
SAP/MAP/DAP minimums<90mmHg, <60mmHg (70 horses), <40mmHg
Hypotensive drugsDobutamine, Dopamine
Low HR, High BPReflex bradycardia, vasoconstriction,
High HR, Low BPHypovolemia, Vasodilation
Dog HR60-120 <160
Cat HR100-180 <240
Horse HR24-44 <50
Drugs that increase BPketamine, A2
Drugs that increase HRketamine, thiopental, propofol, alfaxalone
Drug that decreases HR and BPopioids
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