CAISS Abdominal Injuries 5

Question 1

An intraperitoneal bladder rupture carries a higher AIS score than an extraperitoneal rupture primarily because of which risk?

Accepted Answer

Greater risk of peritonitis and urosepsis from urinary contamination

Answer

Intraperitoneal bladder rupture allows urine to enter the peritoneal cavity, creating a higher risk of peritonitis and urosepsis, justifying a higher AIS score.

Question 2

Which of the following best illustrates the difference between an AIS 4 and AIS 5 hepatic injury?

Accepted Answer

Retrohepatic vena cava or major hepatic vein injury (AIS 5) vs. lobar parenchymal disruption (AIS 4)

Answer

AIS 5 hepatic injuries specifically involve the retrohepatic vena cava or major hepatic veins, whereas AIS 4 involves extensive lobar parenchymal disruption without these vessels.

Question 3

A trauma patient's CT scan shows splenic devascularization greater than 75%. According to AIS, this is scored at which level?

Accepted Answer

AIS 5

Answer

Splenic devascularization greater than 75% is an AIS 5 injury, indicating a critical, potentially life-threatening injury requiring urgent intervention.

Question 4

Under AIS coding conventions, mesenteric injuries are primarily coded based on which factor?

Accepted Answer

Presence and extent of vascular injury and associated bowel ischemia

Answer

Mesenteric injury severity in AIS is primarily determined by vascular involvement and whether associated bowel ischemia or necrosis is present.

Question 5

Which of the following would be coded as an abdominal AIS injury rather than a pelvic AIS injury?

Accepted Answer

Sigmoid colon laceration

Answer

Sigmoid colon lacerations are coded as abdominal injuries in AIS because the colon is an abdominal organ, while bony pelvic structures are coded in the pelvic region.

(CAISS) Certified Abbreviated Injury Scale Specialist Practice Test

(CAISS) Certified Abbreviated Injury Scale Specialist Practice Test

CAISS Abdominal Injuries 5