fluids Flashcards

1
Q

percent of neonate body weight is fluid

A

70-83%

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2
Q

percent of older adult body weight is fluid

A

45%

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3
Q

intracellular fluid

A

70% of total fluid
40% of total body weight

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4
Q

extracellular fluid

A

30% of total fluid
20% of total body weight

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5
Q

third spacing

A

fluid where it should not be

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6
Q

excess of interstitial fluid

A

edema

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7
Q

what are the components of blood?

A

RBCs
WBCs
platelets
plasma

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8
Q

55% of total blood volume

A

plasma, the liquid component

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9
Q

5 functions of body fluids

A
  • transport
  • maintain pressure
  • regulate temperature
  • medium for chemical reactions for metabolism
  • remove waste
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10
Q

osmosis

A

movement of WATER from LOWER concentration to HIGHER concentration until equilibrium

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11
Q

diffusion

A

movements of solutes from area of HIGHER concentration to disperse out

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12
Q

active transport

A

requires energy for movement of substances through the cell membrane from LESSER solute concentration to HIGHER solute concentration

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13
Q

capillary filtration

A

passage of fluid through a permeable membrane from area of HIGHER to LOWER concentration

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14
Q

type of pressure that mostly occurs at the arterial end

A

hydrostatic pressure

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15
Q

type of pressure that mostly occurs at the venous end

A

osmotic (colloid) pressure

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16
Q

hydrostatic pressure

A

the force exerted by the fluid present within the blood capillaries against the capillary wall

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17
Q

osmotic pressure

A

the force exerted by proteins, like albumin, in the blood plasma

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18
Q

what will the body secrete when there is a fluid overload?

A

BNP
ANP

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19
Q

what does increased BNP indicate?

A

heart failure

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20
Q

the three sources of fluid

A
  • ingested liquids
  • food
  • byproduct of metabolism
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21
Q

sensible losses

A

observable
- urine
- feces
- perspiration

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22
Q

insensible losses

A

not readily observable
- expired breath
- cutaneous transpiration

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23
Q

fluid type that has the same tonicity as blood plasma

A

isotonic fluid

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24
Q

types of isotonic fluids

A
  • 0.9% sodium chloride
  • lactated ringers
  • dextrose 5% (D5W)
  • D5N5
25
0.9% sodium chloride
normal saline
26
lactated ringers
contains electrolytes: sodium, potassium, calcium, & chloride
27
D5W
when the dextrose is used, the body is going to change into hypotonic since it is now more like water
28
D5N5
considered isotonic, but a little more on the hypertonic side because it has dextrose & normal saline
29
the only fluid used when giving blood or blood products
normal saline
30
what pts should you monitor closely when giving an isotonic fluid?
hx of heart failure & renal failure
31
fluid type that has less tonicity than blood plasma
hypotonic fluid
32
what are hypotonic fluids used for
- hypertonic dehydration - hypernatremia - to increase urine output
33
hypotonic fluid action
causes water to shift into the body cells
34
types of hypotonic fluids
- 0.45% sodium chloride - D5W
35
0.45% sodium chloride
half normal saline
36
emergency situation for someone receiving a hypotonic fluid
cerebral edema
37
fluid type that has greater tonicity than blood plasma, stays in the intravascular space
hypertonic fluid
38
hypertonic fluid action
causes water to shift out of the cells through osmosis
39
what are hypertonic fluids used for
decrease cellular swelling treat hyponatremia in the instance of cerebral edema
40
hypertonic fluid types
- 3% sodium chloride - 5% sodium chloride
41
what must you monitor when giving a hypertonic fluid
pulmonary edema
42
colloid fluid type
colloids are large molecules that cannot cross over the semipermeable membrane of the vasculature; causes water to shift back into vasculature, thus increasing BP
43
what are colloid fluids used for
hypotensin plasma expansion
44
colloid fluid types
- dextran in N5 - hespan - albumin
45
dextran in N5 or D5W
made of glucose and polymers
46
hespan
made from starch
47
albumin
produced by the liver
48
possible indication that the liver is not working properly
abdominal ascites
49
colloid fluid nursing considerations
not a permanent fix very expensive
50
how many ml of liquids should an individual have per day
2600 ml/day
51
how much urine output per hr
30 ml/hr
52
why is it important to measure daily body weight?
making sure pt is not retaining fluid
53
hypovolemia
fluid depletion
54
hypervolemia
fluid volume excess
55
symptoms of hypovolemia
- dizzy/ light-headed - urine output decreased - orthostatic hypotension - tachycardia - BUN slightly increased - lethargy, confusion, flat neck veins, dry mucous membranes
56
signs of hypovolemia in pediatrics
less tears & sunken fontanelles
57
symptoms of hypervolemia
- bounding HR - increased BP - increased body weight - anxiety, restlessness - increased JVD
58
causes of fluid volume excess
- heart failure - kidney failure - cirrhosis - increased salt intake - excessive fluid intakes - medications, like steroids - malnutrition