Positioning and nerve injury 2 Flashcards
Which nerve is MOST likely to be injured by an IV pole that presses against the dorsolateral aspect of the humerus?
a. median
b. radial
c. ulnar
d. axillary
b. radial
The radial nerve passes along the
spiral grove at the lateral aspect of the humerus (about three fingerbreadths above the lateral epicondyle)
Etiologies of radial nerve injury include
excessive cycling of the NIBG cuff
upper extremity tourniquet
external compression by an IV pole
sheets that are too tight (if the arms are tucked)
Radial nerve injury presents with
wrist drop
Long thoracic nerve injury presents with
a winged scapula
Suprascapular nerve injury presents with
dull shoulder pain
The long thoracic nerve arises from
C5-C7
The long thoracic nerve innervates the
serratus anterior muscle
Long thoracic nerve injury can occur from
lateral position
trauma
preexisting neuropathy (possibly d/t a virus)
The suprascapular nerve innervatest he
supraspinatus and infraspinatus muscles
The suprascapular nerve is anchored between
the cervical spine and the suprascapular notch
Etiology of suprascapular nerve injury is
the patient in the lateral decubitus position rolls onto their dependent arm
Properly stabilizing the patient and placing a roll distal to the axilla may reduce the risk of
suprascapular nerve injury
A patient developed foot drop following a vaginal hysterectomy. She was positioned in candy cane stirrups. which nerve was injured?
a. common peroneal
b. obturator
c. saphenous
d. femoral
a. common peroneal
The etiology of obturator injury is
flexion of the thigh towards the groin
excessive traction during abdominal surgery
forceps delivery
Obturator injury presents with
an inability to ADDuct the leg
Etiology of femoral injury is
excessive traction during lower abdominal surgery
Femoral injury presents with
impaired knee extension and hip flexion as well as reduced sensation over the anterior thigh and anteromedial aspect of the leg
Saphenous injury etiology is
external pressure applied to the medial aspect of the leg
Saphenous injury presents with
reduced sensation over the anteromedial aspect of the leg (just like femoral n. injury)
Etiology of common peroneal injury
external pressure at the level of the fibular head (common in the lithotomy position)
Common peroneal nerve injury presents as
foot drop and the inability to ever the foot