Barry-Positioning
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| Drugs and gases induce a state in which the pt loses the ability to? | show 🗑
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| Pt’s will lose their _________________ to prevent neuromuscular injuries | show 🗑
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| show | breath sounds
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| show | hypotension
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| show | Anesthesia blunts the compensatory SNS reflexes that would normally minimize the BP changes associated with position changes
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| In supine postion, FRC is decreased by? | show 🗑
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| In the supine position, how is FRC decreased? | show 🗑
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| show | left side
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| show | alopecia, pad back of head
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| show | Small airways close sooner, VQ changes cause shunting, Gravity increases blood flow (perfusion) to Lung Zone III (dorsal)
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| show | Ulnar nerve injury (ulnar nerve very superficial)
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| show | Compression at nerve between table and medial epicondyle (groove in elbow)
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| How do you prevent ulnar nerve injury? | show 🗑
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| What clinical manifestation occur with ulnar nerve injuries? | show 🗑
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| show | excessive external rotation or abduction of arm
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| show | Avoid > 90 degree abduction, Watch lateral head rotation If prone watch flexion and abduction of arms overhead; Lateral position requires an axillary roll which avoids compression of humerus into axilla
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| show | Trendelenburg
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| Activation of baroreceptors caused by Trendelenburg position manifests what clinical conditions? | show 🗑
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| Which position causes increases in ICP by decreasing venous drainage, increased IOP (pt with glaucoma), and increased risk of aspiration? | show 🗑
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| show | chemical pneumonia caused by aspiration during anaesthesia, especially during pregnancy
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| show | nerve injuries
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| show | compression of lateral aspect of fibula head (improper padding against stirrups)
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| Common peroneal nerve damage manifests as? | show 🗑
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| An increased risk of injury in lithotomy position (including ischemia and edema) occurs at ____ hours. | show 🗑
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| T or F. Lithotomy position can auto transfuse up to 500cc of blood. | show 🗑
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| T or F. Lithotomy position does not impair ventilation. | show 🗑
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| show | Femoral nerve injury
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| show | decreased sensation on anterior thigh and inability to flex your hip
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| Lithotomy position can cause injury to which nerves? | show 🗑
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| Nerve injury caused by excessive flexion of the thigh to the groin? | show 🗑
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| show | Saphenous Nerve
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| show | Sciatic Nerve
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| Compression of the lateral aspect of the legs at the head of the fibula against the stirrup supports causes which nerve injury? | show 🗑
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| show | from below clavicles to iliac crest
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| Chest rolls placed properly allows? | show 🗑
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| In prone position, what must you do to flex knees and prevent pressure on toes? | show 🗑
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| show | taped rolled up gauze
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| show | Pooling of blood in extremities Decreased preload, CO, BP, SV
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| T or F. Prone position can cause increased SVR and PVR. | show 🗑
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| T or F. Prone position causes decreased total lung compliance and decreased work of breathing. | show 🗑
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| How often in prone position you must check and document the face and eyes are free of pressure? | show 🗑
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| show | ION- Ischemic optic neuropathy
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| show | True.
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| show | True.
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| show | False. Reverse trendelenburg causes an increase sympathetic tone, HR and PVR.
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| T or F. Reverse trendelenburg causes increased FRC and decreased work of breathing. | show 🗑
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| An ______ must be placed just below axilla to avoid compression of the neurovascular bundle in lateral decubitus position. | show 🗑
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| Which arm should you put your pulse oximeter on in lateral decubitus position? and why? | show 🗑
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| In lateral decubitus position mechanical ventilation favors which lung? | show 🗑
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| show | True.
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| show | physiological phenomenon in which pulmonary arteries constrict a normal physiological condition in which the presence of hypoxia without hypercapnia, redirects blood flow to alveoli with a higher oxygen content.
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| show | True.
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| show | Blunting of the hypoxic pulmonary vasoconstriction response. Ventilation decreases in dependant lung due to decreased compliance (compression by weight of abdominal contents), perfusion increases in dependant lung (gravity).
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| Normal V/Q ratio: | show 🗑
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| show | No perfusion and alveolar dead space
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| A V/Q mismatch of zero is caused by: | show 🗑
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| What position is used most often for posterior fossa, cervical spine, shoulder or neck surgery? | show 🗑
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| show | sitting position
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| What can decreases the incidence of pulmonary emboli? | show 🗑
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| A sudden decrease in ETCO2 (PaCO2 goes up), decr. Sats, arrythmias, decr. BP and a millwheel murmur is indicative of what? | show 🗑
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| A venous air emboli can be detected by? | show 🗑
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| show | False. Treatment includes giving volume but surgery must be stopped. Surgeon must flood surgical field with saline and bone wax.
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| show | True.
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| show | Fasle.Left lateral reverse trendelenburg.
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| T or F. If patient has no CVP place patient in right lateral reverse trendelenburg position to prevent air embolism to enter right atrium and pulmonary circulation. | show 🗑
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| show | True.
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| show | True.
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| T or F. Ocular compression and also edema of face, tongue, neck are not complications of the sitting position. | show 🗑
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| What nerve can you damage can occur from placing excessive pressure from fingers on mandible? | show 🗑
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| Res Ipsa Loquitur | show 🗑
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| The brachial plexus in prone position is injured by? | show 🗑
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| show | In supine/T-burg position when shoulder braces are pressing medially against the root of the neck
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| show | Weak arm function
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| The radial nerve is injured by? | show 🗑
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| S/S of nerve injury to the radial nerve | show 🗑
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| The ulnar nerve is injured by? | show 🗑
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| S/S of nerve injury to the ulnar nerve | show 🗑
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| show | Indiscriminate probing (fishing) in the antecubital fossa during venipuncture
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| show | Loss of sensation of finger tips from thumb to mid-point of ring finger, Inability to oppose the first and fifth digits, Decreased sensation on palmar surface of the lateral three and one-half fingers
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| The musculocutaneous nerve is injured by? | show 🗑
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| S/S of nerve injury to the musculocutaneous nerve | show 🗑
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| show | Surgery in the axillary region
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| S/S of nerve injury to the intercostobrachial nerve | show 🗑
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| The medial cutaneous nerve is injured by? | show 🗑
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| S/S of nerve injury to the medial cutaneous nerve | show 🗑
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| show | In sitting position, pressure on the ischial tuberosities
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| show | n lithotomy position, thigh and nerves are externally rotated and knees are extended Excessive hip flexion resulting in nerve stretch
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| The sciatic nerve can also be injured by? | show 🗑
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| show | In lithotomy position, extreme abduction of the thighs with external rotation of the hip Compression at pelvic brim by retractor or excessive angulation of the thigh
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| show | Decreased or absent knee jerk and loss of flexion of hip and extension of the knee; Decreased sensation over superior aspect of thigh and medial and anteromedial side of leg
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| S/S of sciatic nerve injury | show 🗑
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| The saphenous nerve in lithotomy position is injured by? | show 🗑
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| show | Parasthesias along the medial and anteromedial side of calf
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| The common peroneal nerve in lithotomy position is injured by? | show 🗑
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| show | In supine position, prolonged pressure in popliteal fossa by pillows or leg
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| show | Foot drop Loss of dorsal extension of toes Inability to evert the foot
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| The obturator nerve is injured by? | show 🗑
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| S/S of obturator nerve injury | show 🗑
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| The anterior tibial nerve is injured by? | show 🗑
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| show | Foot drop
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| The Lateral Femoral Cutaneous nerve is injured by? | show 🗑
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| S/S of lateral femoral cutanous nerve injury | show 🗑
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