CM LEC - Pleural Fluid Flashcards Preview

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Flashcards in CM LEC - Pleural Fluid Deck (112)
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1

Closed cavities

Pleural, pericardial, peritoneal cavities

2

Closed cavities

Pleural, pericardial, peritoneal cavities

3

type of serous membrane
lines the cavity wall

Parietal membrane

4

type of serous membrane
covers the organs within the cavity

Visceral membrane

5

– fluid between the membranes

serous fluid

6

why small amount of serous fluid is normally present

because production and reabsorption take place at a constant rate

7

function of serous fluid

provides lubrication

8

production and reabsorption of serous fluid subject to

hydrostatic pressure
colloidal pressure (oncotic pressure)

9

needle aspiration procedures for pleural fluid

Thoracentesis

10

needle aspiration procedures for pericardial fluid

Pericardiocentesis

11

needle aspiration procedures for peritoneal fluid

Paracentesis

12

volume of serous fluid to be collected

> 100 ml

13

type of tube for cell counts and diff count

EDTA

14

type of tube for microbiology and cytology

sterile heparinized or sodium polyanethol sulfonate (SPS)

15

done for better recovery of microorganisms and abnormal cells

Centrifugation

16

what type of tests are performed on clotted specimens in plain tubes or in heparin tubes

chemistry tests

17

results of chemistry tests compared with __ chemical concentrations

plasma

18

Specimens for pH must be ___

maintained anaerobically in ice

19

Cause of an effusion may be

transudate or exudate

20

cause of an effusion
formed because of a systemic disorder that disrupts the balance in the regulation of fluid filtration and reabsorption (ex of systemic disorder: changes in hydrostatic pressure created by congestive heart failure or the hypoproteinemia associated with the nephrotic syndrome)

transudates

21

cause of an effusion
produced by conditions that directly involve the membranes of the particular cavity, including infections and malignancies

exudates

22

- most reliable differentiation between transudate and exudate

Fluid: blood ratios for protein and lactic dehydrogenase

23

• Serous fluid cell counts can be performed manually by using a ____ counting chamber

Neubauer

24

fluid obtained from the pleural cavity

pleural fluid

25

additional procedures helpful when analyzing pleural fluid

--pleural fluid cholesterol and fluid:serum cholesterol ratio
--pleural fluid:serum total bilirubin ratio

26

when is a pleural fluid/effusion classified as an exudate

-- pleural fluid cholesterol >60 mg/dL
--pleural fluid:serum cholesterol ratio >0.3
--fluid:serum total bilirubin ratio of 0.6 or more

27

used to differentiate between hemothorax and hemorrhage exudate

Hematocrit

28

Hct > 50% = ?

hemothorax, effusion comes from the inpouring of blood from injury

29

Hct

chronic membrane disease effusion (has both blood and increased pleural fluid)

30

milky pleural fluid may be due to (2)

chylous
pseudochylous

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