Comp Questions Flashcards
How much O2 is dissolved in blood if the PaO2 is 300?
0.003 X 300 = 0.9 ml
Which physics law has a constant temperature?
Boyles
Where are Kuppfer cells located?
Liver
Which law of physics explains why a cylinder cools as it empties?
Joule-Thompson
Coracobrachialis nerve?
Musculocutaneous
A smoker is supposed to stop smoking 2-3 days before surgery to?
Reduce carboxyhemoglobin
What types of Hgb does not change the pulse ox value?
Hgb A, Hgb F
Carcinoid tumor?
Serritonin
Eisenmenger syndrome?
Can’t remember, its a R to L shunt
Demylination of the Pontine’s?
Aggressive treatment of hyponatremia
What is the blood gas partition coefficient of Isoflurane?
1.46
Blood gas solubility determines what?
Speed of onset
MAC is inversely related to?
Potency
Which drug decreases cerebral blood flow and cerebral metabolic requirments
Propofol(so does Etomidate and I can’t remember which one was on there)
Sodium substance with pika 8.2 injected into the blood?
The sodium makes it a weak acid so it is less than 50% ionized.(NA+Phosphate with drug name = base/Na+calcium(mag) with drug name = ?)
What is the most important determinate of duration of action?
How protein bound the drug is
What is the significance of the Oil:water partition coefficient?
Determines lipid solubility
Which two are not metabolized by ester pseudocholinesterase?
Cocaine(ester, but metabolized by liver, prilocaine(amide)
How do you treat magnesium toxicity with a loss of deep tendon reflex?
Calcium gluconate
A dibucaine # of 80 is?
normal—>80% of pseudocholinesterase
How does insulin and glucose treat hyperkalemia?
drives potassium back into the cells
What is the major extracellular cation?
Sodium
Which medication slows the process of reabsorption of bicarb by inhibiting carbonic anhydrase?
Acetazolamide(Diamox)
What region of the kidney is most vulnerable to ischemia?
the Inner stripe of the outer medulla