Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/51

Click to flip

51 Cards in this Set

  • Front
  • Back
Will inhaled anesthetics cause burst suppression
yes
At what MAC level does impaired cognition begin at
0.2 MAC
Best inhaled anesthetic for burst suppression; dose
Iso; 1.5 MAC
When do volatile inhaled anesthetics increase CBF
Above 1 MAC
What is NO affect on neuro
uncoupled increase in O2 demand
What does inhaled anesthetic do to VO2
decreases
especially the heart
When does des inhibit global autoregulation in the brain
0.5 MAC
When do iso and sevo inhibit global autoregulation in the brain
1.5 MAC
When do iso, sevo, des, begin to inhibit local vasogenic response in the brain
1 MAC
What do volatile agents do to SSEP; how do we treat this
dose dependent decrease
keep patient on a steady dose
N2O affect on the heart
increases SNS outflow
mydriasis
increased temp
increased RAP
Increase SVR and PVR
N2O plus opioids affect on the heart
decreased BP, CO,
increased LVEDP, SVR
Inhaled anesthetic that doesn't increase CVP
Sevo
Inhaled anesthetic that increases HR the most
Des
What areas do inhaled anesthetics increase blood flow to
Brain
Skin
Skeletal muscle
Which areas do inhaled anesthetics decrease blood flow to
Kidney
Liver
Splanchnic- GI, pancreas
What do inhaled anesthetics do to baroreceptors
depress
Inhaled agent that causes the longest depression of baroreceptors
Iso
In what case will you use nitrous with a HTN patient; at what dose
obese; less than 50%
Total allowable dose of epinephrine with gases
6-7.5mcg/kg
What precautions must be taken when administering inhaled anesthetics to pts with aortic stenosis
must make sure to maintain the SVR in order to perfuse coronaries
Inhaled anesthetic that should not be given during accessory pathway ablation surgery
Iso
What are the six affects of inhaled anesthetics on circulation
direct myocardial depression
central SNS inhibition
Decreased cAMP
Decreased SA node(dec Ca influx)
Decreases carotid baroreceptors
Peripheral ganglionic blockade
What does N2O do to respirations when added to a volatile anesthetic
Decreases resp. depressant affects

respiratory protective
Least resp depressant of the volatile inhaled anesthetics
Sevo
Metabolism of Sevo
5%
Metabolism of Des
0.02%
Metabolism of Iso
0.2%
Metabolism of N2O
0.004%
Enzyme inducing drugs that will increase de-fluorination
Phenobarbital
Phenytoin
Isoniazid
Inhaled anesthetic that undergoes reductive metabolism in the GI tract
N2O
Best measure of hypoxic liver damage
GST
What does an early peak of GST indicate
hypoxia during surgery
What does a late peak of GST indicate
autoimmune response
Best indicator for low perfusion during surgery
low urine output
What are four signs of fluoride induced nephrotoxicity
Polyuria (inability to concentrate urine)
Hyperosmolarity of blood
Increased Cr/BUN
Fluoride >50 mmol
What is the only inhaled anesthetic with the potential to cause fluoride induced nephrotoxicity
Sevo
What are 5 factors to measure in the urine if FIN after Sevo is suspected
NAG
Alpha GST
Pi GST
Glycosuria
Proteinuria
What is the flow precaution with Sevo
no more than 2 MAC hours at one liter flows
What are anesthetics affects on uterine muscle tone
dose dependent relaxation
Inhaled anesthetics may decrease the activity of these two B-12 dependent enzymes
methionine-myelin
Thymidylate- DNA
What does inhaled anesthesia do to EEG waves
decreases frequency and amplitude
Do trace gases in the room cause mental impairment
no
not until 0.2 MAC
When does decreased cerebral oxygen demand begin when administering inhaled anesthesia
0.4 MAC

along with amnesia
Dose range of inhaled anesthesia at which amnesia begins
0.3-0.5 MAC
What do inhaled anesthetics do to CBF
Increase CBF
luxury perfusion
When is EEG isoelectric with inhaled anesthetics
2 MAC
Regulates global blood flow
autoregulation
Regulates local blood flow
CO2 reactivity
Why is stroke volume decreased with the administration of inhaled anesthesia
decreased SVR= decreased venous return
Why is CVP increased with the administration of inhaled anesthesia
because of fluid backing up from myocardial depression