From startprep flash cards

Question 1

How common is pseudocholinesterase deficiency?

Answer 1

1/3,200 -1/5,000

More in Persian Jewish and Alaska natives

Question 2

Primary contraindication for elective use of LMA

Answer 2

risk of aspiration of gastric contents

Question 3

Where is plasma cholinesterase produced?

Answer 3

liver

butyrylcholinesterase

Question 4

two benzodiazepines with active metabolites

Answer 4

1. midazolam

2. diazepam

Question 5

flow and pressure delivered by o2 flush valve

Answer 5

35-75 L/min, 50psi

Question 6

6 major anatomic differences between infant vs adult airway

Answer 6

1. tongue: relatively large
2. occiput: relatively large
3. Epiglottis: narrow, omega shapped, floppy
4. larynx: more cephalad
5. vocal cords: slant anteriorly
6. cricoid cartilage: narrowest part of larynx

Question 7

Is it permissible to temporarily leave an anesthetized patient?

Answer 7

if there is another emergency, the best judgment of the anesthesiologist will be excerceised in comparing the emergency with the anesthetized patient’s condition and in the selection of the person left responsible for the anesthetic during the temporaty absence.

Question 8

decrease or avoid benzodiazepines

Answer 8

1. elderly
2. debilitated
3. COPD
4. on other respiratory depressant drugs

Question 9

Which pts should receive preoperative beta blockade?

Answer 9

1. already on beta blocks
2. also consider initiating beta blockers days to weeks prior to surgery undergoing vascular surgery who have more than one RCRI (intermediate) factor

Question 10

why do elderly pts require lower induction and maintenance doses of propofol?

Answer 10

1. smaller central distribution volume

2. lower clearance rate

Question 11

What is the function of a Lanz ETT?

Answer 11

allows pressure regulation fo the ETT cuff