Sodium Flashcards

(40 cards)

1
Q

where is sodium mostly located?

A

extracellular

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2
Q

what is one of the most important thing sodium does?

A

attracts fluid

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3
Q

what are some other thing sodium does?

A

transmit impulses in nerve and muscle fibers

combines with chloride and bicarbonate tor regulate acid-base balance

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4
Q

what is the normal range of sodium?

A

135- 145

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5
Q

more sodium taken in =

A

more sodium excrete through kidneys

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6
Q

if sodium intake is increased what else is?

A

extracellular fluid

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7
Q

what does ADH do?

A

cause kidneys to retain water –> diluting blood

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8
Q

what is excreted when sodium increase?

A

ADH

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9
Q

what is hypovolemic hyponatremia?

A

both sodium and water lever decrease in extracellular area

*Sodium loss > water loss

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10
Q

what are some non renal causes of hypovolemic hyponatremia?

A
vomit
diarrhea
fistulas
gastric suctioning
excessive sweating
cystic fibrosis
burns/wounds
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11
Q

what are some renal causes of hypovolemic hyponatremia?

A

osmotic diuresis
salt-losing nephritis
adrenal insufficiency
diuretic uses

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12
Q

what is sugnificant about diuretics being used?

A

it can cause potassium loss which lead to sodium loss

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13
Q

what is hypervolemic hyponatemia?

A

water and sodium increase in the extracellular area (Na levels diluted)
Water gain > sodium

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14
Q

what are some common causes of hypervolemic hyponateremia?

A
Heart failure
Liver failure
Nephrotic syndrome
Excessive hypotonic IV fluids
Hyperaldosteronism
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15
Q

what is isotonic hyponatremia?

A

sodium levels appear low because too much fluid is in the body.

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16
Q

what are some causes of isotonic hyponatremia?

A

glucocorticoid deficency
hypothyroidism
renal failure
SIADH

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17
Q

what is SIADH?

A

sydrome of inappropriate antidiuretic horomone cause excessive release of ADH –> excessive water retention

18
Q

What does SIADH occur with?

A

cancer
CNS disorders
Pulmonary disorders
medications

19
Q

what are some treatments for hyponatremia?

A

fluid restiriction
high-sodium diet

SEVERE: hypertonic IV solution

20
Q

what are some thing you look for in a person with hyponatremia?

A

N/V
anorexia
neurological symptoms

21
Q

what are some thing that effect what to look for in hyponatremia?

A

how fast the levels dropped

22
Q

what are some neurological signs to look for in hyponatremia?

A
headach
irritability
dioriented
twitching
tremors
weakness 
change in LOC
23
Q

if severe hyponatremia what do you look for?

A
stupor
delirium 
psychosis
ataxia
coma
24
Q

what does low hyporvolemic hyponatremia show?

A
poor skin turgor
dry cracked mucus membranes
weak rapid pulses
low B/P
orthostatic hypotension
CVP, PAP, and PAWP may decrease
25
what does hypervolemic hyponatremia show?
``` edema hypertension weight gain rapid bounding pulse CVP, PAP, PAWP elevate ```
26
what are some common diagnosis test with hyponatremia?
serum osmolarity < 280 serum Na less than 135 urine specific gravity < 1.010 elevated hematocrit and plasma protein
27
if a person is severe hyponatremia what do you do/look for?
hypertonic solution (infuse very slow and small volume) monitor carefully for circulatory overload worsening neurological status
28
nursing intervention for hyponatremia is?
``` VS neurological status daily weight skin turgor diagnostic tests often post sign of fluid restriction oral supplements IV treatment safe environment ```
29
what is the defense mechanism to hypernatremia?
hypothalmus --> thirst
30
who are more likely to experiance hypernatremia?
elderly patients, immobile patients, or unconscious patients and hypothalmas disorders some athelets and infants too
31
what is hypernatremia?
excess sodium relative to water in the body
32
what some common sensible causes of hypernatremia?
vomiting | diarrhea
33
what are some insensible causes that relate to hypernatremia?
pulmonary infections fever heat stroke
34
what are some disease that increase risk of hypernatremia?
hyperosmolar hyperglycemic nonketotic syndrome diabetes (from lack of ADH)
35
what do you look for in hypernatremia?
``` N/V restlessness agitation anorexia weakness lethargy confusion stupor seizure coma low fever flushed skin elevated B/P bouning pulse dyspnea ```
36
what are some neromuscular signsa?
twitching hyperreflexia ataxia tremors
37
what are some diagnotic test done associataed with hypernatremia?
serum sodium >145 urine specific gravity > 1.030 serum osmolality > 300
38
how do you treat hypernatremia?
oral replacement for water | IV fluids gradually over 48 hour
39
what are some nursing interventions with hypernatremia?
``` VS replacement --> response watch for cerebra edema and neurological change I&O daily weight assess skin --> breakdown, infection, & persiration oral hygeines safety ```
40
what foods are high in sodium?
``` canned soups and vegtables cheese ketchup processed meats table salts salty snacks seafood ```