NMB Monitoring Flashcards

1
Q

What is TOF?

A

Train of Four

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What two Hz levels are usually used for tetany?

A

50 Hz and 100 Hz

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is most common NMBM sites?

A

Unlar nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is correct way to orient cathodes when placing them on body?

A

Red closest to heart, black most distal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Name 2 other NMBM sites other than ulnar nerve?

A

Facial nerve on side of face between ear and eye

Posterior tibial nerve on inside of ankle near medial malleolous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is unique about facial nerve placement?

A

Red cathode is placed more superior (away from heart) and black more inferior (closer to heart)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is motion that is observed when checking facial nerve using NMBM?

A

Eyebrow will twitch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How many twitches are seen when at least 75% of receptors are blocked?

A

3 twitches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What percent of receptors are blocked when 4 twitches are observed?

A

0-75% of receptors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What percent of receptors are blocked when 2 twitches are seen?

A

80%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How many twitches would you expect when 90% of receptors are blocked?

A

1 twitch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Explain what you would observe when 100% of receptors are blocked

A

0 twitches and with no tetany

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How many twitches must be observed before you can give reversals?

A

At least 1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What drug produces fasiculations?

A

Succinycholine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are fasiculations?

A

Uncontrolled muscle twitches throughout entire body seen under the skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the unit of measure on NMB stimulator?

17
Q

Which NMB agent has shortest duration of action?

A

Succinylcholine

18
Q

What NMB agent has longest duration?

A

Pancuronium

19
Q

What is a non depolarizing NMB agent?

A

Roc, Vec, Nimbex, Panc

20
Q

What is the depolarizing NMB agent used in anesthesia?

A

Succinylcholine

21
Q

Define sensory threshold

A

Threshold at which when pt is awake, produces a facial reaction when NMB monitor is turned on

22
Q

What is the motor threshold?

A

Threshold at which produces a motor twitch from NMB stimulation after pt has gone to sleep but before muscle relaxant has been administered

23
Q

How many mA should be administered to determine sensory threshold?

24
Q

How many mA are administerd when determining motor threshold?

25
What is the supermaximal stimulus?
25 mA above motor threshold
26
What physiologic significant variable effects stimulation thresholds?
Temperature
27
When the nerve stimulator is placed on the ulnar nerve, the actions of which muscle(s) is/are being monitored?
Flexor Carpi Ulnaris and Adductor Pollicis
28
What causes prolonged neuromuscular blockade following administration of succinycholine?
Pseudocholinesterase deficiancy
29
How do you offset the fasciculations associated with succinycholine?
5 mg Rocuronium
30
List order of muscles affected by a neuromuscular blockade?
-- Laryngeal adductors -- Diaphragm -- Orbicularis oculi -- Rectus abdominus -- Adductor pollicis