Key Terms Flashcards
Trouble shooting ventilator alarms (7)
Low FiO2 Low tidal volume High pressure Bellows Low CO2--apnea Circuit disconnect Pulse ox lower than 85%
Normal route of CSF flow
Lateral ventricles foramen of Monro 3rd ventricle 4th ventricle Subarachnoid
pathway monitored by MEPs
ventral
corticospinal tract
Identification of hypoglycemia:
BS < 70
Identification of hyperglycemia:
BS > 130
What is the function of the sphincter of Oddi?
smooth muscle sphincter located at junction of the common bile duct and pancreatic duct which controls the amount of bile and pancreatic juices into the duodenum
What is the sensitivity of thermal skin receptors?
can detect changes in skin temp by 0.003 degrees Celcius
What are possible side effects of sodium bicarb use?
hypocalcemia
hypokalemia due to re-entrance into cells
How can you prevent vasospasm? (drugs 2)
nimodipine
verapamil both are channel blockers
Definition of Ludwig’s Angina
supparative inflammation of subcutaneous tissue in submental space
What conditions if Ludwig’s Angina generally associated with?
diabetes
dental abscess
How do you assess state of oxygenation? (3)
A-a gradient
cardiopulmonary shunt fraction (Qs/Qt)
Arteriolar alveolar oxygen tension ratio = a/A > 0.75
Where is CSF formed?
choroid plexus
How much CSF volume in the body?
150 ml
How much CSF formed in one day in an adult?
500 ml
What is the specific gravity of CSF?
1.006
What is the pathophysiology of cardiac tamponade?
restrictive heart disease
What is the pharmacologic support for a hypotensive patient with cardiac tamponade?
isoproteronol
What end-expiratory airway pressure is produced by the ascending bellows?
2-3 cm H2O
When should you tape pt’s eyes during induction?
after loss of consciousness
What perioperative risks does rhabdomyolysis pose?
kidney issues
A 54 year old woman who complained of having the worst headache of her life is admitted and taken to radiology. Angiography reveals a leaking cerebral aneurysm. Coiling is planned and GA induced. The pt VS BP 210/110 mmHg, HR 54 and RR 9. What should be the blood pressure target be?
Normotensive and increased BP
A 54 year old woman who complained of having the worst headache of her life is admitted and taken to radiology. Angiography reveals a leaking cerebral aneurysm. Coiling is planned and GA induced. The pt VS BP 210/110 mmHg, HR 54 and RR 9. What should be the blood pressure target be?
What is the goal for intervention?
prevent vasospasm
If vital signs change to BP 88/58, HR 65, wha is indicated?
give vasopressors
What is opisthotonus?
muscles spasms from dorsal roots
What is ASRA?
American Society of Regional Anesthesia
What physiologic effect describes deoxygenated hemoglobin having a greater affinity for hydrogen ions than oxygenated Hb?
Bohr effect
What type of anesthesia is performed for percutaneous rhizotomy?
mostly performed under local anesthesia but can be done under general
What is the purpose of the wake-up test during surgery?
It is the gold standard for monitoring deformity during correction
Brain death can only be applied in the absence of what c
hypotension
hypothermia
metabolic/endocrine abnormalities
neuromuscular blocking agents or other drugs to depress brain function
