Respiratory

Question 1

pulm vascular resistance

Answer 1

the force the right ventricle must overcome to maintain pulm flow
measure of right vent aterload
normal 120-150 dynes

Question 2

preop for diaphragmatic hernia

Answer 2

avoid bag mask vent
gastric decompresion
semi folwers position
intubation and persmissive hypercapnea
pos nitric

Question 3

conditions that increase PVR

Answer 3

hypoxemia, acidosis, hypothermia, hypoglycemia

Question 4

surfactant

Answer 4

helps maintain FRC
prevents pulm edema
consists of protein so plays role in defense
reduced by hypoxia and acidosis

Question 5

oral airways are measured by

Answer 5

corner of the mouth to theangle of the jaw
they should extend from the lips to the pharanynx
they should only be used when no gag is present

Question 6

epiglotis is children

Answer 6

longer and more floppy
extends over layrnx 45 degree angle
more anterior making intubation harder

Question 7

narrowest part of infants airway is

Answer 7

carotid ring

Question 8

which blades are preffered in young children

Answer 8

straight blades to pick up floppy epiglotis

Question 9

what blades are preffered in older children

Answer 9

curved blades

Question 10

s/s of pneumothorax

Answer 10

hypoxia, tachycardia, hypotension and increased PIP on the vent–chest tube nee to be placed

Question 11

Residual volume

Answer 11

volume remaining in lungs after forced expiration

Question 12

Total lung capacity

Answer 12

volume of gas in lungs at maximum inspiration

Question 13

vital capacity

Answer 13

maximum volume expired with expiration

Question 14

Functional residual capacity

Answer 14

volume remaining after normal expiration

Question 15

Symptoms of ARDS

Answer 15

mediators are released that increase capillary permability
increase in PVR
pulm htn is worsened
blood is shunted away from non ventilated areas