Blocks and misc Flashcards
(61 cards)
How often does an anastomotic leak happens after gastric bypass? What are the most common signs
2% of the time
- Unexplained tachycardia is the most sensitive sign
- Fever
- Abdominal pain
What may increase the incidence of an anastomotic leak and should be avoided?
Ketorolac
What is Ma Huang and its complications?
Natural source of ephedrine
- adrenergic overstimulation
- HTN
- Seizures
- CVA
- Death
What is orlistat?
Lipase inhibitor that reversibly binds to lipase and inhibits absorption of fats
This may increase bleeding due to lack of vitamin K
Which coagulation factors does Vit K impair?
2,7,9,10
How does blood volume, MAP, and venous pressure change in trendelenberg? What must you be careful with?
Increased venous pressure - be careful in HF patients!
MAP stays the same or increases because of vasodilation
Venous pressure increases pressure of the face, eyes, and airway - also increases ICP
Respiratory changes in trendy vs reverse trendy
If you have concerns for airway swelling, what test can be done before extubation?
Leak test with a spontaneously breathing patient
Which positions can cause edema to the face
Prone
Trendelenburg
Sitting with neck flexion
What position is the brachial plexus at highest risk for being stretched?
Arms are abducted > 90 degrees, or the head is rotated to one side
What position is the brachial plexus at highest risk for being compression?
Compressed between the clavicle and the first rib by an external force (shoulder brace or bean bag)
Should shoulder braces be used? What is an alternative?
They should never be used and opt for a non-sliding mattress
IF used, then place over the acromion
How do you test for thoracic outlet syndrome? Which positions increase the likelihood of this?
Have the patient clasp their hands behind their head, if they have pain then at increased risk
This syndrome can occur in any position where the arms are placed over the head like being prone
Where is an axillary roll placed and why? What can happen?
Placed distal to the axilla
IF placed in the axilla then it can cause neurovascular compression. Poor SpO2 can signal in the dependent arm
Where does the ulnar nerve emerge?
From the cubital tunnel between the humeral and ulnar heads of the flexor carpi ulnaris
What is the common injured peripheral nerve?
ulnar
Other than positioning what else increases ulnar nerve injury?
Prolonged hospital stay
Obese or thin
Preexisting injury
Males over 50
Impaired sensation to the 4th and 5th digits signals what type of nerve injury?
Ulnar
Claw hand signals what type of nerve injury?
Chronic ulnar
Inability to abduct or oppose the pinky finger signals what type of nerve injury
Ulnar
Sensory vs motor nerve injury, which is more serious?
Motor is more serious
Sensory vs motor nerve injury, which is more common? When does it resolve?
Sensory is more common and less serious than motor injury
Usually subsides in 5 days
Which nerve can be injured when placing an IV in the antecube?
Median
Which nerve can be injured with carpel tunnel syndrome?
Median