Exercise tolerence -METS stageing

Question 1

What is the criteria for the mets staging?

Answer 1

Can do the specified activity without getting breathless

More severe the lower the met score
The higher the met score the better their cardiac/resp system so they are usually easier to anaesthetise

Question 2

METS9

Answer 2

Do either strenuous exercise or heavy physical work

Question 3

METS 8

Answer 3

Run a short distance

Question 4

METS7

Answer 4

Play golf, mountain walk, dance or any form of exercise

Question 5

METS6

Answer 5

Walk on the flat at brisk pace

Question 6

METS 5

Answer 6

Climb a flight of stairs or walk up a hill

Question 7

METS 4

Answer 7

Walk 100-200 metres on the flat

Question 8

METS 3

Answer 8

Do light housework

Question 9

METS 2

Answer 9

Walk around the house

Question 10

What are reasons to intubate a patient whilst they are under anaesthetic?

Answer 10

Protection from aspiration- e.g. for those who haven’t fasted
Need for muscle relaxation
Shared airway- surgeons an anaethetists working in same area
Need for tight CO2 control
Minimal access to patient during surgery

Question 11

What is spontaneous ventilation?

Answer 11

Patient breaths themselves

Question 12

What is controlled ventilation?

Answer 12

Patient paralysed so their breathing is completely taken over by anaethetist

Question 13

What is supported ventilation?

Answer 13

Mixture of spontaneous and controlled ventilation

Patient breathes but anaethetist does some of the work.