Module 18 Nerve Injuries & Positioning

Question 1

Most common nerve injury. Result

Answer 1

Ulnar nerve

Claw hand

Question 2

Injury results in wrist drop

Answer 2

Radial nerve

Question 3

Inability to flex the arm

Answer 3

Musculocutaneous nerve injury

Question 4

Inability to oppose thumb aka ape hand

Answer 4

Median nerve injury

Question 5

Inability to abduct arm

Answer 5

Axillary nerve injury

Question 6

Injury weakening all muscles below the knee

Answer 6

Sciatic

Question 7

Most common nerve injury of lower extremity

Answer 7

Common peroneal nerve

Question 8

Injury resulting in foot drop, inability to evert for, and loss of extension of toes

Answer 8

Common peroneal

Question 9

Injury resulting in decreased or absent knee jerk, loss of hip flexion, and loss of knee extension

Answer 9

Femoral nerve injury

Question 10

Injury resulting in inability to adduct the leg

Answer 10

Obturator nerve injury

Question 11

What nerves may be damaged during mask ventilation

Answer 11

Facial nerve CNVII and trigeminal nerve CNV

Question 12

Episodes of awareness are most common during what phase of anesthesia

Answer 12

Maintenance

Question 13

What is the accepted tool for detecting postoperative awareness

Answer 13

Brice interview

Question 14

In which patient population is a cemented prosthesis preferred

Answer 14

Elderly <80 and less active

Cementless require bone to grow into them

Question 15

How does tension pneumocephalus manifest

Answer 15

Delayed emergence after craniotomy. Severe HA may also ensue

Question 16

During deliberate hypotensive techniques what is the acceptable range for SBP and MAP

What is lowest acceptable MAP

Answer 16

SBP 80-90mmHg

MAP 50-65mmHg

Lowest MAP 50 mmHG

Question 17

In chronic hypertensive patient where should MAP be maintained during deliberate hypotensive technique

Answer 17

No more than 25% lower than baseline