misc Flashcards
how does colloids affect capillary oncotic pressure and filtration
high capillary oncotic pressure that decreases transcapillary filtraton
other name for posterior pituitary and waht does it secrete
neurohypophysis
secretes vasopressin and oxytocin
other name for anterior pituitary
adeno hypophysis
why is T3 more potent than T4
its less protein bound so has higher serum concentration
explain the pathophys and triad if hepatopulmonary syndrome
inreased levels of NO is cirrclating which is a pullmonary dilator so you have
- intrapulmonary vascular dilatioon
- incresed A-a gradient > 20
- hepatic failure
when patient stands up hypoxia is worse due to gravity depedent increase perfusion to bottom of lungs worsening v/q mismatch called orthodeoxia
what is the muscle that gets motor innervation from the external branch of superior laryngeal nerve
cricothyroid
think own muscle nerve because connects importaant cartilage cricoid and thyroid
3meds to relax the uter
- nitroglycerin
- terbutaline
- voltline anesthetics
which drug is not metabolized or changed at all lin the lungs
epinephrine
think strongest pressor cant be touched
low or high bmi associate w preterm labor?
low bmi is associated w preterm labor
how does airflow resistance and lung volume relate
as lung volumes decrease airway resistance increases
what do steroids to do calcium in serum
decreases serum calcium, think thats why it causes osteoporosis
during lithrotipsy for renal calculi what part of the QRS should you time the shock waves
during the R of QRS because thats when the refractory period occurs
would be the worst during the T wave aka repolarization
can nasal versed cause neurotoxicity
yes via the cribiform plate
it is also very uncomfortable to the nasal mucosa
if u see someone down and they are no pulse whats the first step of ACLS
first step is to do 2 rescue breathing THEN CPR
what is citrate metabolized to
citrate is metabolized to bicarb by the liver
can a TPN line be used as a regular line?
yes it can but if possible avoid using it as a blood transfusion line because TPN can destroy RBCs
hepatic encephalopathy is caused by change in what neurotransmittor
decrease in excitatory glutamate contributes hepatic encepholopathy
how does lactulose work for ammonia decrease
acidifies the lumen of the intestine trapping ammonia as an ion
