LP 3

Question 1

loc formare uree

Answer 1

ficat

Question 2

componentele din care se formeaza ureea

Answer 2

nh3 si co2

Question 3

soarta uree

Answer 3

60% reabs
40% secretata
10% tub digestiv si piele

Question 4

de cine depinde niv plasmatic de uree

Answer 4

-proportia de proteine din alimentatie
-catabolismul proteinelor
-rata eliminarii proteinelor

Question 5

clasificare metode de dozaj uree

Answer 5

-indirecte
-directe

Question 6

metode indirecte de dozaj

Answer 6

-metoda conductometrica
-metoda colorimetrica
-metoda spectofotometrica

Question 7

metoda colorimetrica indirecta

Answer 7

metoda berthelot
nh3+hipoclorit+fenol=indofenol(albastru)

Question 8

princ metoda spectofotometrica

Answer 8

nh3+alfa-cetoglutarat+nadh=acid glutamic+nad
-se masoara cant de nadh consumat

Question 9

metode directe de masurare a ureei

Answer 9

metoda colorimetrica prin condensare uree si diacetilmonoxina=diazina

Question 10

aplicatia practica: berthelot

Answer 10

uree in prev de ureaza
nh3+naocl+2 fenol=indofenol(albastru)

Question 11

val de referinta

Answer 11

15-40 mg/100ml ser

Question 12

cresteri patologice uree prerenal

Answer 12

scaderi ale fluxului sangvin: hemoragie si deshidratare

Question 13

cresteri patologice uree renal

Answer 13

af renale acute si cronice
glomerulonefrita

Question 14

cresteri patologice uree postrenal

Answer 14

obstructie tract urinar cu calculi sau tumori

Question 15

scaderi ale ureei

Answer 15

lipsa de proteine in alimentatie
afectiuni hepatice severe