Exam 1: Dermatome Mapping + Sx Dermatomes Flashcards
(68 cards)
1
Q
Dermatome: C-Section
A
T4
2
Q
Dermatome: Anterior/Inner Lower Limbs
A
L1-L4
3
Q
Dermatome: Foot
A
L4, L5, S1
4
Q
Dermatome: Medial Great Toe
A
L4
5
Q
Dermatome: Posterior/Outer Lower Limbs
A
L5, S1, S2
6
Q
Dermatome: Lateral Foot and Pinky Toe
A
S1
7
Q
Dermatome: Perineum
A
S2, S3, S4
8
Q
Dermatome: Umbilicus
A
T10
9
Q
Dermatome: Inguinal/Groin
A
T12
10
Q
Dermatome: Clavicles
A
C5
11
Q
Dermatome: Lateral Upper Limbs
A
C5, C6, C7
12
Q
Dermatome: Medial Upper Limbs
A
C8, T1
13
Q
Dermatome: Thumb
A
C6
14
Q
Dermatome: Hand
A
C6, C7, C8
15
Q
Dermatome: Ring and Little Fingers
A
C8
16
Q
Dermatome: Nipple Level
A
T4
17
Q
Dermatome Sx: Peri-Anal/Anal [Saddle Block]
A
S2 - S5
18
Q
Dermatome Sx: Foot/Ankle Sx
A
L2
19
Q
Dermatome Sx: Thigh/Lower Leg/Knee
A
L1
20
Q
Dermatome Sx:
Hip/Knee, Vaginal Delivery, Uterine, Tourniquet, TURP
A
T10
21
Q
Dermatome Sx:
Scrotum
A
S3
22
Q
Dermatome Sx:
Penis
A
S2
23
Q
Dermatome Sx:
Testicular
A
T8
24
Q
Dermatome Sx:
Hysterectomy, Uro/Gyno, Lower Abs
A
T6
25
Dermatome Sx:
C-Section, Upper Abs
T4
26
How Many Vertebrae?
*Breakdown of Levels
33
*C7, T12, L5, S5, Coccyx 4
27
How many Pairs of Spinal Nerves
*Breakdown of Levels
31 pairs
*C8, T12, L5, S5, Coccyx 1
28
What Level is the Superior Aspect of the Iliac Crest?
L4
29
What Level is the Posterior Superior Iliac Spine?
S2
30
What Level is Intercristal Line?
*Another name for it?
L4
*Tuffier's Line
31
What is the Landmark for Caudal Anesthesia?
Sacral Cornua
32
What is the access point to Caudal Anesthesia?
Sacral Hiatus
33
Where does the Spinal Cord start and stop?
Medulla - Conus Medullaris
34
Where does the Conus Medullaris end in adults?
*Infants?
Adults: L1-L2
Infants: L3
35
What levels is the Cauda Equina?
L2-S5 + Coccygeal Nerve
36
Where does the Dural Sac end in Adults?
*Infants?
Adults: S2
Infants: S3
37
Where does the Anterior Spinal Artery derive from?
*How many arteries is this?
*What does it supply?
*Motor or Sensory?
Derived from the Vertebral Artery
*1 Anterior Spinal Artery
*Supplies 2/3 of the spinal cord
*Motor
38
Where does the Posterior Spinal Artery derive from?
*How many arteries is this?
*What does it supply?
*Motor or Sensory?
Derived from the cerebellum
*2 Posterior Spinal Arteries
*Supplies 1/3 of the spinal cord
*Sensory
39
Superficial to Deep: Layers of the Spine
Skin, SubQ, Supraspinous, Interspinous, Ligamentum Flavum, Epidural Space, Dura Mater, Subdural Space, arachnoid Mater, Subarachnoid Space
40
What are your CardioAccelerator Levels?
T1-T4
41
What is the name of the connective tissue between the ligamentum flavum and dura mater (if it exists)
Plica Mediana Dorsalis
42
What is contained in the subarachnoid space? (3)
CSF, nerve roots, spinal cord
43
What are the meninges in order from superficial to deep?
Dura Mater, Arachnoid Mater, Pia Mater
44
Which is wider: L3-L4 or L4-L5
Wider: L3-L4
45
Nerve Fibers in Order of Blockade
B, C, Adelta, Agamma, Abeta, Aalpha
46
B Fiber Function
Autonomic Preganglionic Fibers [Venodilation]
47
C Fiber Function
Autonomic Postganglionic Fibers [Pain, temp]
48
A-Delta Function
Fast Pain, temp, touch
49
A-Gamma Function
Motor Tone
50
A-Beta Function
Touch and Pressure
51
A-Alpha Function
Motor and Proprioception
52
Which nerve fiber is blocked 1st?
B Fiber
53
Which nerve fiber is blocked the longest?
B Fiber
54
Which nerve fiber recovers first from blockade?
A-Alpha
55
Which nerve fiber is blocked last?
A-Alpha
56
Differential Blockade Levels?
*SNS
*Motor
SNS: 2-6 segments higher than sensory
Motor: 2 segments lower than sensory
57
When monitoring Sensory in Anesthesia blocks, which sensations do you test first?
Temp, pain, touch/pressure
58
How do you monitor Motor function in neuraxial blocks?
*0 Scale
*3 Scale
Modified Bromage Scale
*0 - no motor block
*3 - complete motor block
59
What is the Bezold-Jarisch Reflex?
*How to prevent it
Response to ventricular underfilling, leading to bradycardia and asystole
*Can be prevented by Zofran 8 mg
60
What does the bainbridge reflex cause?
Causes Tachycardia
61
62
What Pulmonary Functions are changed during Neuraxial Anesthesia?
Decreased ERV, FRC
63
What does Parasympathetic Afferent Transmit? [Vagus]
Transmit Satiety sensation, distention, nausea
64
What does Parasympathetic Efferent Transmit? [Vagus]
Tonic Contractions, sphincter relax, peristalsis, secretions
65
What does Sympathetic Afferent Transmit? [T5-L2]
Visceral Pain
66
What does Sympathetic Efferent Transmit? [T5-L2]
Sphincter Contraction and vasoconstriction [inhibits peristalsis and gastric secretions]
67
What is the "pop" heard during a spinal?
The Dura Mater
68
Which meninge is most important for LA reabsorption?
Pia Mater
