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Flashcards in Chapter 12 Deck (10)
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1
Q

decision to perform sx

casting

most cow procedures performed in

A

often based on value of animal

sometimes used in ruminants; is a combination of heavy sedation with forced recumbency. Often used to tx limb and feet conditions

standing position (sed/tranq + local or regional anesth). often used for traumatic injury repairs like lacs or punctures

2
Q

preanesth fasting ruminants

local pain control

L block

Cornual nerve block

A

withhold food 12-14h if indicated, water withheld up to 6h prior

Lidocaine,mepividicaine, or buprivicaine. 13 mg/kg toxic

up to 100 cc of 2%

Used for desensitization of the horn and horn base for dehorning surgery

3
Q

Bier block

caudal epidural

A

IV regional anesth; NEVER standing - cast animal. tourniquet mid carpus/tarsus, inject lido in any superficial vein. tisssue necrosis after 2h

1st intercoccygeal space; lido and or mepivicaine +/- xylazine. lasts an hour or two. indwelling epidural cath poss if need 4 longer pd of time

4
Q

what are the equipment needs for intubation?

name four anesth risks in ruminants

how to minimize these?

A

-Regurgitation
-Bloat
-Hypoventilation
-Compartment Syndrome
__________________
-Food withrawal for 12 hours
-Cuffed endotracheal tube
-Don’t roll unless cuffed tube in place
-Proper patient positioning and padding during general anesthesia

5
Q

xylazine

antichol

inhalants

thiobarbiturates

A

Clinical effects, bloat, bradycardia, hypoventilation, hyperglycemia, uterine contractions
Moves unchanged into milk- may effect newborns

don’t decrease saliva prod in ruminants

if

6
Q

ketamine

guaifenesin

triple dip

A

Used in combination with a sedative such as xylazine or acepramozine

muscle relaxant. combined with thiobarbiturates, xylazine, or ketamine for induction and maintenance

Ruminant triple-drip (keta/gua/xyla) combinations are different from equine triple-drip combinations, and the two should never be substituted for each other. ruminants more sensitive to xyla, can eliminate it and do a safer double dip

7
Q

Telazol/Propofol

ET intub via direct visualization and palp

what are the most commonly encountered anesth complications.

A

Can be used in calves and small ruminants. (tiletamine-zolazepam). Propofol can be used in calves- a single dose produces approximately 10 minutes of surgical anesthesia

direct in calves with laryngoscope and stylet. palp
only suitable in adult; depress epiglottis while passing ET tube thru

hypotension, hypoventilation, and bradycardia

8
Q

central eye pos + dilated pupils

anesth RR and HR

BP monitoring

A

excessive anesth, take action

20-40, 60-120

Indirect- coccygeal artery
Direct- median auricular artery
MAP- 70 mmHg; if less than 60 = hypotension

9
Q

bloat equipment

most commonly performed sx procedure, three complications

Cornuectomy

A

oral speculum, stomach tube, rumen trocar, and
skin prepping materials

  • castration most commonly done at time of weaning, 3-4 mo
  • hemorrhage, infection, fly strike

dehorning. disbudding via chem or heat cautery or sx removal. sx saws in older animals

10
Q

tail docking

A

facilitate udder hygiene and improve the comfort and health of milking personnel by reducing getting “swatted with urine and feces soaked tails