Exam 3 Flashcards
What are five risk factors for anesthesia emergency?
o Breed o Patient health o Experience skills of the vet team o Case circumstances o Owner idiosyncrasy
Define laryngeal eversion.
edges of larynx are depressed or are everted
What issues arise when surgically correcting an elongated soft palate?
o Surgical correction with complications of swelling and incorrect length
o Too short causes food in the nares
o Too long does not solve the problem
How do you determine the correct ET tube size?
o Palpate to check size - Should not be tight going down
o Septum of the nares
What is one complication of the ET tube being too tight?
scrapes mucosal surface causing a postoperative cough
What is one factor in determining the order of surgical procedures?
most life threatening goes first
What must one evaluate before performing a procedure which requires anesthesia?
must weigh risks and benefits - benefits must outweigh risks
What is the number one reason for anesthetic emergencies?
human error
What are five examples of human mistakes which may lead to an emergency?
o Lack anesthesia and drug familiarity o Wrong drugs administered o Preoccupied or in a hurry o Fatigue o Inattentiveness
What are four symptoms/warning signs that a patient has a diaphragmatic hernia?
o Internal organs displaced into the thorax
o Skinny abdomen
o Muffled heart sounds
o Dyspnea
What are two examples of drugs that come in different dosage strengths?
Xylazine, Butorphanol
What is a potential route of administration drug complication that may occur with aggressive dogs?
aggressive dogs may be dosed IM in emergency situations, but if there is a struggle the vein may be hit
What is the second most common reason for emergencies?
equipment failure
What are six potential anesthesia machine equipment problems?
o CO2 absorber exhausted o Decreased O2 flow o Misassembled o ET tube problems o Vaporizer problems o Pop off valve
How often should the CO2 absorber be changed?
every ten hours
What are five symptoms of CO2 absorber exhaustion in the patient?
o Hypercapnia because of the increased CO2 buildup o Increased HR and RR o Brick red MM o Arrhythmias o No reflexes
What are four possible reasons for decreased O2 flow?
o Tank runs out (change at 500 psi though 2-3 more surgeries could be done)
o Valves are closed
o Flow meter ball is lodged in the flow meter tube
o Obstruction or leak
What is one symptom of decreased O2 flow in the patient?
appears cyanotic when O2 has stopped
What should the tech’s reaction to reduced O2 flow be?
o Disconnect the nonrebreathing circuit because room air has 20% oxygen (better than 0%)
o Leave a rebreathing circuit connected as long as the reservoir bag is full (there is still oxygen in it)
What percentage of O2 is found in room air?
20%
What percentage of 02 is administered by the vaporizer?
100%
What are four potential problems with the endotracheal tube?
o Twisting or kinking
o Material in tubes
o Bad positioning
o Blockage
How do you prevent twisting and kinking of the ET tube?
detach before flipping the animal
What drug increases the risk of material being trapped in the tube?
atropine in cats