OHE, Castration, Abdominal, & Thoracic Surgery--Final

Question 1

Name the layers of the thorax from superficial to deep

Answer 1

skin/cutaneous trunci
latissimus dorsi
serratus ventralis
external abdominal oblique
external intercostal
internal intercostal
pleura

Question 2

The most common surgical approach to the thoracic cavity

Answer 2

intercostal thoracotomy

Question 3

which structures at the the below locations on the LEFT side:

1) 4-6th ICS (2 things)
2) 7th-9th
3) 8th-10th

Answer 3

1) heart
1) lung (4/5 cranial lobe, 5/6 caudal lobe)
3) caudal esophagus
4) thoracic duct (CAT)

Question 4

which structures at the the below locations on the RIGHT side:

1) 4th-6th (2)
2) 3rd-4th
3) 7-9th (2)
4) 8th-10th

Answer 4

1) heart
1) lungs (4/5 cranial lobe, 5th middle lobe, 5/6 caudal lobe)
2) cranial esophagus
3) caudal esophagus
3) caudal vena cava
4) thoracic duct (DOG)

Question 5

Which muscle can be used as a landmark during thoracic surgery?

Answer 5

Scalenius (inserts on 5th rib)

Question 6

Which 2 structures can you leave intact during sternotomy and why?

Answer 6

manubrium or xyphoid; minimizes sternal shifting

Question 7

What suture type is best for closure of the sternum

Answer 7

large (0 or greater), monofilament, non-absorbable

braided can lead to fistula

Question 8

T/F: when choosing analgesia for post-op thoracic surgery, opioid-induced respiratory depression is a primary concern

Answer 8

FALSE; poor ventilation due to pain is a much greater concern

Question 9

sutures when closing the body wall should be how far apart

Answer 9

5-8mm

doesn’t need to be water-tight

Question 10

Most common bacteria to cause infection in the uterus with pyometra?

Answer 10

E. coli

Question 11

When do you make your incision for a feline castration

Answer 11

caudo-ventral surface of scrotum

Question 12

Mode of inheritance for cryptorchidism

Answer 12

sex-linked, autosomal recessive