DVM Large Animal Surgery 5

Question 1

Which vessel is at greatest risk of iatrogenic injury during a left flank laparotomy for bovine abomasal displacement correction?

Accepted Answer

Left ruminal artery

Answer

The left ruminal artery runs along the left surface of the rumen and can be inadvertently injured when the surgeon is working in the left flank region near the rumen.

Question 2

What is the recommended surgical treatment for a horse with grade IV laryngeal hemiplegia (roarer) competing at high performance levels?

Accepted Answer

Prosthetic laryngoplasty (tie-back procedure)

Answer

Prosthetic laryngoplasty (arytenoid lateralization/tie-back) is the preferred surgery for high-performance horses with laryngeal hemiplegia, restoring the airway diameter to improve exercise tolerance.

Question 3

Which diagnostic test best confirms the diagnosis of nephrosplenic entrapment of the large colon in a horse prior to surgery?

Accepted Answer

Rectal palpation of the ventral colon over the nephrosplenic ligament

Answer

Rectal palpation is the primary diagnostic tool; the characteristic finding is the left ventral colon positioned dorsal to and over the nephrosplenic (splenorenal) ligament, which can be palpated per rectum.

Question 4

In swine, which surgical technique is used for reduction of rectal prolapse in mild, acute cases?

Accepted Answer

Purse-string suture placement around the anus after manual reduction

Answer

For acute, reducible rectal prolapse in pigs, manual reduction followed by placement of a purse-string suture to retain the rectum is the initial treatment; amputation is reserved for irreducible or necrotic prolapses.

Question 5

What is the primary advantage of the ventral midline approach over the flank approach for exploratory laparotomy in horses?

Accepted Answer

Superior visualization and access to the entire abdominal cavity

Answer

Ventral midline celiotomy provides access to all abdominal compartments, enabling the surgeon to examine, decompress, and correct any region of the gastrointestinal tract.

DVM - Doctor of Veterinary Medicine Practice Test

DVM - Doctor of Veterinary Medicine Practice Test

DVM Large Animal Surgery 5