Surg 102 Chapter 12 (Fuller) Flashcards Preview

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Flashcards in Surg 102 Chapter 12 (Fuller) Deck (54)
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1

What is a polarizing agent?

cause muscle paralysis by stimulating involuntary muscles, which is followed by muscle fatigue

2

What drugs are commonly used as polarizing agents?

succinylcholine and decamethonium

3

What is a nondepolarizing agent?

prevent muscle contraction by binding to the muscle's cholinergic receptor

4

What drugs are commonly used as nondepolarizing agents?

-mivacurium (short acting)

-atracurium (intermediate duration)
-cistatracurium (intermediate duration)
-vecuronium (intermediate duration)
-rocuronium/Zemuron (intermediate duration)

-tubocurarine (long duration)
-gallamine (long duration)
-metocurine (long duration)
-pancuronium (long duration)
-pipecuronium (long duration)

5

Regional anesthesia provides reversible loss of sensation in a specific area of the body without _____.

affecting consciousness

6

The most common uses of regional anesthesia are :

1. limb surgery in which complete nerve block is possible
2. procedures in which consciousness is desirable or required
3. minor superficial procedures
4. patients for whom general anesthesia poses a significant risk

7

What are the different types of regional anesthesia?

1. topical anesthesia
2. local infiltration
3. nerve block
4. spinal, caudal, and epidural anesthesia

8

What is topical anesthesia?

an anesthetic is applied directly to the eye, skin, or mucous membrane

9

What is local infiltration?

a small amount of drug is introduced through multiple injections into the skin and subcutaneous tissue

10

What is a nerve block?

a single nerve or nerve plexus (group) is anesthetized, blocking sensory stimuli to the tissue enervated by that nerve or group

11

What are spinal, caudal, and epidural anesthesia?

specific techniques for blocking transmission to the middle and lower body

12

Monitored anesthesia care (MAC) is _____ provided during regional anesthesia.

continuous patient monitoring

13

Topical anesthesia is used on _____ and _____ during ophthalmic procedures.

mucous membranes and superficial eye tissue

14

Topical anesthetics are used before insertion of _____ and _____devices and also before _____ and _____to prevent reflexive gagging.

endotracheal and LMA
laryngoscopy and bronchoscopy

15

Local infiltration is injection of an anesthetic into _____ to produce a small area of anesthesia.

superficial tissues

16

During a nerve block, the anesthetic agent is injected into the _____.

adjacent tissue, not into the nerve itself

17

During an intravenous (Bier) block, blood is temporary displaced from a _____.

limb and replaced by a regional anesthetic agent

18

Spinal anesthesia is injection of anesthetic into the _____.

subarachnoid space

19

During spinal anesthesia, two positions are used--_____ or _____.

lateral (side-lying) or sitting

20

A _____ position is used with patient lying on his side and the knees drawn up.

knee-chest

21

Epidural anesthesia is produced when the anesthetic agent is injected into the epidural space that surrounds the _____.

dural sac

22

What are the risks associated with spinal anesthesia?

hypotension, postspinal headache, total spinal anesthesia

23

Caudal and epidural anesthesia target the _____.

epidural space

24

In the epidural anesthesia the approach is through the _____.

lumbar interspace

25

In caudal anesthesia the approach is through the _____.

caudal canal

26

All health care worker must maintain current certification in _____ and be able to respond in case of a cardiac or respiratory arrest

CPR

27

The signs and symptoms of cardiac arrest vary according to whether the patient is _____.

fully conscious at the time or sedated

28

During cardiopulmonary arrest a conscious patient may feel _____.

nausea, shortness of breath, chest pain or pressure, or pain radiating from the jaw, neck, or shoulder

29

It is important to remember that resuscitative efforts must begin _____ to prevent neurological damage from lack of oxygen to the brain.

quickly

30

Brain damage may occur as quickly as _____ after circulatory collapse.

3 minutes