NMBAs pt I

Question 1

Experienced CRNAs cannot visually detect a TOF reduction of about ____ % or ______ B/A

Answer 1

60; 0.4

Question 2

Double burst uses _____ Hz

Answer 2

50

Question 3

Double burst involves 2 sets of ____ short bursts, and delivers them at ___ Hz

Answer 3

3; 50

Question 4

What is the intended purpose of NMBAs ? Give 3 reasons bitch

Answer 4

1. Decreased airway trauma
2. Fascilitates surgical exposure
3. Minimizes injury d/t pt movement

Question 5

To activate the adductor pollicis muscle, which nerve is stimulated?

Answer 5

Ulnar nerve

Question 6

What muscle is indicative of laryngeal recovery following admin of roc

Answer 6

Adductor pollicis

Question 7

The order of the block is dependent on :

Answer 7

-# of presynaptic ACh containing vesicles
-# of postsynaptic ACh receptors
-Blood flow to area
-Drug potency

Question 8

Which muscle can reflect diaphragmatic and laryngeal blockade? What is it less indicative of?

Answer 8

Orbiculararis oculi; Poor indicator of residual paralysis

Question 9

Which electrode is negative (red or black?)

Answer 9

Black

Question 10

TOF involves ______ stimuli at ____ Hz in 1/2 second

Answer 10

4 stimuli ; 2hz

Question 11

T/F: At a TOF of 0.7 -0.9 you may still have significant residual blockade present at the NMJ

Answer 11

TRUEEEEEEEEE

Question 12

A tetanic stimulation will show a _______ response with succinylcholine and a _______ response with vecuronium.

Answer 12

sustained response; non-sustained

Question 13

A phase II block will show a ________ response with tetanic stimulation

Answer 13

non-sustained

Question 14

Normal resting membrane potential for this class

Answer 14

-90 mV

Question 15

Does succ release histamine

Answer 15

yuhhhh

Question 16

Succ dose

Answer 16

1mg / kg

Question 17

K will increase how much with succ admin?

Answer 17

0.5 mEq/ L

Question 18

TOF ratio for Succ

Answer 18

> 0.7

Question 19

Poorly functioning ______ can result in a phase II block even with appropriate dosing

Answer 19

pseudocholinesterase aka bootycholinesterase

Question 20

Factors that decrease bootycholinesterase

Answer 20

age, liver, pregnancy, burns, OCP, MAOI, Anticholinesterase drugs

Question 21

Succinylcholine might cause a difficult intubation via what adverse effect?

Answer 21

masseter spasm

Question 22

What NMBA should be avoided for both increased ICP and ocular cases?

Answer 22

Succ

Question 23

Succ overdose that results in a phase II block will begin to mimic ___________

Answer 23

non-depolarizing NMBAs