Shock

Question 1

equation of the delivery of oxygen?

Answer 1

Do2= CO {[hgb x o2 sat x 1.34] + .003 xPo2} x 10

Question 2

causes of type B LA?

Answer 2

liver dz, hiv, malignancy, epi, metformin

Question 3

first line tx of tamponade?

Answer 3

pericardiocentisis

Question 4

when to dow window for tamponade?

Answer 4

loculated or recurrent

Question 5

effect of milirnone?

Answer 5

inc lusitropy(diastolic relaxation)

Question 6

doubatmine effects

Answer 6

inc CO, dec SVR BP

Question 7

Isoproterenol effect

Answer 7

B1, B2

Question 8

V1 effect?

Answer 8

vasocontriction

Question 9

V2 effect?

Answer 9

fluid retention

Question 10

noreepinepherine effect on venous ssytem?

Answer 10

venoconstriction inc venous return

Question 11

mechanism of hypotension with obstructive shock?

Answer 11

inadequate diastolic filling or inc afterload

Question 12

tamponade EKG findings?

Answer 12

low voltage, electrical alternans

Question 13

normal right atrial pressure?

Answer 13

2-6 mmhg

Question 14

why is ETCo2 low in low CO state?

Answer 14

low pulmonary perfusion leading to worsening ventilation

Question 15

wedge reading in a spontenously breathing person?

Answer 15

will be falsely low

Question 16

when to take the reading of a PAC whether intubated or not?

Answer 16

end expiration

Question 17

only type of shock with a high ScVO2?

Answer 17

distributive

Question 18

why is cardiac index decreased in hypovolemic shock?

Answer 18

its a measurement of CO

Question 19

effective CPR ETCO2?

Answer 19

10-20 mm hg

Question 20

why take wedge at end expiration?

Answer 20

less effect of pleural pressures or intracardiac pressures