Positioning-S3 Flashcards
Legalities of positioning doctrine name?
“Res ispa loquitur”
The thing speaks for itself
Biggest physiologic consequence of position changes?
Hypotension
The most common perioperative neuropathy?
Ulnar Neuropathy
Most common upper extremity neuropathy?
Ulnar Neuropathy
This neuropathy is caused by direct extrinsic nerve compression (medial aspect of elbow) and intrinsic nerve compression or prolonged elbow flexion?
Ulnar neuropathy
What is the only major peripheral nerve in the body that passes on the extensor side of a joint?
Ulnar nerve
Ulnar nerve positioning?
Padding
Supinate arm
Abduct less than 90 Degrees
Ulnar nerve injury causes what?
Claw hand
Inability to abduct the 5th finger
Lateral aspect of hand
Claw hand
Inability to abduct the 5th finger
Lateral aspect of hand
Ulnar nerve injury
Ulnar neuropathy resolved in?
Sensory only?
Sensory and Motor?
S- 80% resolved in 6 months
S/M- 20% resolved in 6 months
Most common nerve injury for patients undergoing sternotomy?
Brachial plexus injury
Brachial plexus injury most common positions?
Prone and lateral
Ape hand deformity, inability to oppose thumb?
Median nerve injury
Inability to abduct the arm?
Axillary nerve injury
Claw hand deformity?
Ulnar nerve injury
Inability to flex forearm?
Musculocutaneous nerve injury
Wrist drop deformity?
Radial nerve injury
Scapular winging
Serratus anterior muscle
Traumatic but can also be viral/inflammatory is what nerve injury?
Long Thoracic Nerve duysfunction
Nerve injury caused by >90 abduction
Head of the humerus into the axillary bundle
compression and stretch injury
Common with mastectomy?
Axillary nerve injury
Muscular men susceptible to which nerve injury?
Median nerve injury
Median nerve injury causes what?
Inability to complete extension of the elbow. Causes shortening of nerve over time.
IVs in the AC can cause which nerve injury?
Median nerve injury
Which nerve is most often caused by direct compression with overused BP cuff?
Radial nerve injury
This nerve injury is more often by direct compression than stretch. Caused by repeated cycling of BP cuff and unsupported limbs. Symptoms include wrist drop?
Radial nerve injury
DR CUMA
Drop Radial
Claw Ulnar
Ape Median
This nerve injury is caused by hip abduction > 30 degrees, excessive flexion, and excessive traction.
Motor dysfunction is common.
Inability to adduct the leg with decreased medial sensation?
Obturator neuropathy
This nerve injury is caused by hip flexion >90 degrees, can. cause ischemia, only affects sensory fibers so no motor disability occurs?
Lateral Femoral Cutaneous nerve
This nerve injury is caused by external rotation of the leg, hyperflexion of the hips and extension of the knees
Sciatic neuropathy
This nerve injury is associated with direct pressure of the lateral leg. Injured by leg holders(candy canes) and can cause prolonged foot drop and difficulty ambulating?
Most common lower neuropathy
Peroneal neuropathy
This nerve injury is associated with muscle cramps, tightness and difficulty mobility. It is caused by difficult forceps delivery or excessive flexion of the thigh to the groin?
Saphenous nerve injury
What is the most common lower extremity neuropathy?
Peroneal neuropathy
> 4 hours in lithotomy increase risk of what injury?
Common Peroneal Nerve injury
This nerve injury is caused by excessive angulation of the thigh on abdomen and excessive traction?
Loss of sensation
Femoral nerve injury
> 5 hours in lithotomy increases risk for what injury?
Compartment syndrome
Venous air embolism is associated with which position?
Sitting position
Late sign of Venous air embolism?
Millwheel murmur
What position do you put the patient in with a venous air embolism?
Durants position.
Left head down
