liberation

Question 1

weaning success

Answer 1

is defined absence of ventilatory support 48 hours following the extubation

Question 2

success rate

Answer 2

out of 2,486 patin the success rate was 68%

Question 3

weaning failure

Answer 3

defined as failure of a SBT or need for reintubation within 48 hours

Question 4

Before weaning requirements?

Answer 4

the patient should recovered from the acute phase of the disease leading to mechanical ventilation and be able to assume adequate spontaneous breathing

Question 5

Paco2 for weaning

Answer 5

paco2 should be between 35-45 mm Hg or around 50 for COPD

Question 6

Vital capacity for weaning

Answer 6

the vital capacity should be around 10 ml/kilo

and sponatanous tidal volume should be around 5 ml/kilo

Question 7

Sponatanous frequency

Answer 7

should be less than 35 breath/min and increase in shallow rapid breathing cause increase in deadspace and highly ineffective for gas exchange

Question 8

time should waited to see change,

Answer 8

3 minutes

Question 9

minute ventilation

Answer 9

with successful minute ventilation should be less than 10 L/min and acceptable blood gases

Question 10

for succeful weaningfor oxygenation

Answer 10

pao2 should less than 60 mm Hg and greater than 90% and Fio2 less 40%

Question 11

Pao2/fio2 ration for weaning

Answer 11

should be equal of greater than 150 mm Hg

Question 12

Qs/Qt ration

Answer 12

should be less than 20% for successful weaning

Question 13

a-a difference

Answer 13

should be less than 350 mm Hg on 100%

Question 14

Maximum inspiratory pressure

Answer 14

for successful weaning should be at least -30 cm h20

Question 15

static compliance should be

Answer 15

greater 30 mL/cm H20

Question 16

airway resistance should be

Answer 16

0.6 to 2.4 cm h2.0/L

suctioning or bronchodilators can help reduce airway resistance

Question 17

PSV should titrated

Answer 17

should be titrated until desired tidal volume is reached like 10 to 15 mL/kg and frequency decrease to a target value is less 25 breath /min

Question 18

vd/vt

Answer 18

the successful should be less than 60%

Question 19

RSBI

Answer 19

are used to evaluate the breathing pattern and if the number is greater than 105 breath/min/L than that patient is not ready for liberation.

Question 20

SBt

Answer 20

the major diagnostic test to determine if patient can be successful extubated and weaned from mechanical ventilation