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822: Integumentary > Lymphedema > Flashcards

Flashcards in Lymphedema Deck (112)
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1

What are the 2 main functions of the lymphatic system?

- Regulate fluid balance
- Assist with infection control

2

How many liters of fluids are removed from the interstitial space per day?

18 L

3

Of the 18 liters removed, __-__% via the veins and __-__% via the superficial and deep lymphatic vessels. How many liters via the lympathics?

80-90

10-20 (2-4L)

4

What occurs when the lymphatics cannot remove the remaining interstitial fluid?

Lymphedema

5

__-__% of women with breast cancer will develop lymphedema

23-45

6

__% of women with ovarian cancer will develop lymphedema

21

7

__% of patients with endometrial cancer will develop lymphedema

28

8

Up to __% of men with prostate cancer will develop lymphedema

70

9

What are the chief complaints of lymphedema?

- limb heaviness
- paresthesias
- achiness
- skin tightness
- poor-fitting clothes
- altered cosmesis
- decreased ADLs
- reduced ROM

10

The lymphatic system is composed of 2 interconnecting drainage systems, what are they?

superficial and deep lymphatics

11

Describe the function and arrangement of the superficial lymphatics

Drains the skin and subcutaneous tissue

Roughly parallels the veins

12

Describe the function of the deep lymphatics

drains everything else (deep tissues and organs)

13

What connects the deep and superficial lymphatic systems?

perforating lymphatics

14

What is lymph made of?

water, protein, dead/dying cells/cellular components, fatty acids, foreign material and debris

15

Describe the path lymph takes as it exits the interstitial spaces to

Lymph capillaries --> Lymph precollectors --> Lymph collectors --> Lymph nodes --> Lymph trunks

16

What is the functional unit of a lymph vessel that lies between two semilunar (half moon-shaped) valves?

Lymphangion

17

How many lymphangions are there in a typical arm collector? In a leg collector?

60-80

80-100

18

The total number of lymph nodes ranges from ___-___ with the majority located where?

600-700

mesentaries

19

Describe the path lymph takes from the LEs and the genitals

Passes through the inguinal nodes into the left and right lumbar trunks before emptying into the centrally located thoracic duct, which terminates into the left venous angle (the internal jugular vein and the subclavian vein)

20

Describe the path lymph takes from the LEFT upper extremity

Filters through the axillary lymph nodes before emptying into the subclavian vein

21

Describe the path lymph takes from the RIGHT upper extremity

Empties into the right subclavian vein aka the right venous angle

22

Lymphatic territories are areas of skin made up of several adjacent lymph collectors that drain into the same regional lymph nodes. These territories are separated by natural boundaries called what?

watersheds

23

What pressures govern fluid movement between capillaries, interstitium, and lymphatic system?

hydrostatic and osmotic pressure

24

What are the 5 ways in which lymph moves centrally in a healthy lymphatic system?

- skeletal muscle contractions
- respiratory pump
- pulsations of the aorta
- lymphangiomotoricity

25

What is Lymphangiomotoricity?

the contraction of the smooth muscle within the lymphagnions

26

Lymphangiomotoricity is the key to decreasing edema when?

overnight while the patients are recumbent

27

What are the 2 types/causes of lymphedema?

primary and secondary

28

Describe primary lymphedema

Congenital malformation or impairment of lymphatics

29

Primary lymphedema accounts for only __% of all cases

10

30

Primary lymphedema cases are usually described by what 2 things?

type of lymphatic vessel abnormality or the age of onset