full transcript

## Unscramble the Blue Letters

Let me show you a little bit about how this machine works. Voila! Here she is. When you have electricity, everything in this machine begins in the base. There's a built-in oxygen concentrator down there. Now you've heard me mienton oxygen a few times at this point. Essentially, to dleiver anesthesia, you want as pure oxygen as possible, because eventually you're going to ditlue it, etiasnlelsy, with the gas. And the mixture that the paneitt inhales needs to be at least a certain percentage oxygen or else it can become droangues. But so in here when there's eirclticety, the oxygen concentrator takes in room air. Now we know room air is gloriously free, it is audabnnt, and it's already 21 percent oxygen. So all this concentrator does is take that room air in, filter it and send 95 percent pure oxygen up and across here, where it mixes with the anesthetic agent.

## Open Cloze

Let me show you a little bit about how this machine works. Voila! Here she is. When you have electricity, everything in this machine begins in the base. There's a built-in oxygen concentrator down there. Now you've heard me _______ oxygen a few times at this point. Essentially, to _______ anesthesia, you want as pure oxygen as possible, because eventually you're going to ______ it, ___________, with the gas. And the mixture that the _______ inhales needs to be at least a certain percentage oxygen or else it can become _________. But so in here when there's ___________, the oxygen concentrator takes in room air. Now we know room air is gloriously free, it is ________, and it's already 21 percent oxygen. So all this concentrator does is take that room air in, filter it and send 95 percent pure oxygen up and across here, where it mixes with the anesthetic agent.

1. patient
2. essentially
3. electricity
4. mention
5. deliver
6. dilute
7. dangerous
8. abundant

## Original Text

Let me show you a little bit about how this machine works. Voila! Here she is. When you have electricity, everything in this machine begins in the base. There's a built-in oxygen concentrator down there. Now you've heard me mention oxygen a few times at this point. Essentially, to deliver anesthesia, you want as pure oxygen as possible, because eventually you're going to dilute it, essentially, with the gas. And the mixture that the patient inhales needs to be at least a certain percentage oxygen or else it can become dangerous. But so in here when there's electricity, the oxygen concentrator takes in room air. Now we know room air is gloriously free, it is abundant, and it's already 21 percent oxygen. So all this concentrator does is take that room air in, filter it and send 95 percent pure oxygen up and across here, where it mixes with the anesthetic agent.

## Frequently Occurring Word Combinations

### ngrams of length 2

collocation frequency
room air 4
johns hopkins 3
operating theater 3
safe surgery 2
anesthesia machine 2
enable surgery 2
medical supplies 2
oxygen concentrator 2
pure oxygen 2
percent oxygen 2

## Important Words

1. abundant
2. agent
3. air
4. anesthesia
5. anesthetic
6. base
7. begins
8. bit
9. concentrator
10. dangerous
11. deliver
12. dilute
13. electricity
14. essentially
15. eventually
16. filter
17. free
18. gas
19. gloriously
20. heard
21. inhales
22. machine
23. mention
24. mixes
25. mixture
26. oxygen
27. patient
28. percent
29. percentage
30. point
31. pure
32. room
33. send
34. show
35. takes
36. times
37. works