IPPV

Question 1

What circuits are available?

Answer 1

Bain
Ayres T-piece
Circle

Question 2

What circuits are not suitable for IPPV?

Answer 2

Lack

Magill

Question 3

What are disadvantages of IPPV?

Answer 3

Hypothermia due to decreased muscle tone
Difficult to assess anaesthetic depth
Some drugs in this group can cause hypotension
Increased effects if used with aminoglycosides
Increased suspectibilty if used alongside halothane, isoflurane, corticosteroids, some diuretics and epinephrine

Question 4

What are uses of IPPV circuits?

Answer 4

Facilitate controlled IPPV
During intraocular surgery
Where good muscle relaxation is required to facilitate the surgery
As part of balanced anaesthesia technique for high risk patients

Question 5

Explain reversal of IPPV

Answer 5

Non-depolarising NMBAs can be reversed
Can make recovery period safer
Drugs used, neostigmine or edrophonium