ITE block 11

Question 1

What causes bradycardia w/ neonatal apnea

Answer 1

Hypoxic stimulation of the carotid body chemoreceptors

Question 2

Tx for acute MR after papillary m rupture w/ pulm edema

Answer 2

Nitroprusside
***dilates arteries&raquo_space; veins -> dec in afterload
and rapid onset/offset
-if need inotrope: milrinone or low dose epi -> inotropy w/ vasodilation

Question 3

what stimulates carotid body chemoreceptors

Answer 3

arterial partial pressure of oxygen

Question 4

What n picks up low PaO2 from carotid body chemoreceptor?

Answer 4

glossopharyngeal

Question 5

FENa for prerenal hypovolemia

Answer 5

<1

Question 6

FENa equation

Answer 6

(UNa x PCr) / (NCa x PNa)

Question 7

Prerenal Urine sodium

Answer 7

< 20

Question 8

Prerenal U osm

Answer 8

> 400