Edema, Hydrocephalus, Increased cranial pressure Flashcards Preview

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Flashcards in Edema, Hydrocephalus, Increased cranial pressure Deck (14)
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0

Vasogenic edema results from

increased permeability in blood vessels

1

Cytotoxic edema results from...

Swelling of cells due to increased intracellular fluid

2

What two drugs are recommended to treat vasogenic edema?

Steroids (dexamethasone) and mannitol

3

How does dexamethasone treat edema?

Reduces permeability of tight junctions

4

How does mannitol treat edema?

Increases solute in blood so that the number of particles in the blood is more than the number of particles in cells or CSF. Osmotic force pulls water across membranes

5

What medicine is used to treat cytotoxic edema?

none are known as of yet

6

Noncommunicating hydrocephalus results from...

a block in the ventricular system

7

Communicating hydrocephalus results from...

a block in the subarachnoid space

8

Hydrocephalus ex vacuo results from...

brain atrophy and subsequent enlargement of ventricles

9

What procedures can treat hydrocephalus?

Surgery to remove tumor or lesion, or a shunt to drain fluid

10

What medications can decrease hydrocephalus?

Acetazolamide and furosemide

11

How does acetazolemide work?

It inhibits carbonic anhydrase, resulting in decreased CSF production

12

How does furosemide work?

Inhibits NaKCl2 pump, decreases CSF production

13

Herniation is fatal because...

the pressure put on the midbrain