fluid and electrolytes Flashcards

1
Q

what is the most abundant ICF ion?

A

potassium

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2
Q

what is the most abundant ECF ion?

A

sodium

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3
Q

which electrolyte drives the movement of water?

A

sodium

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4
Q

what is the normal value for sodium?

A

135 - 145

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5
Q

what is the role of sodium?

A

to transmit impulses in nerves and muscle fibers

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6
Q

how is sodium consumed?

A

table salt
food

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7
Q

what causes a loss of sodium?

A

excessive sweating
vomiting
diarrhea
certain diuretics
insufficient aldosterone (adrenal)
excessive ADH secretion
diuresis
excessive water intake
not eating enough
gastrointestinal suctioning

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8
Q

what happens when aldosterone is released?

A

the body retains sodium and water

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9
Q

what happens when aldosterone is retained in the body?

A

the body releases sodium and water and cause hyponatremia

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10
Q

what are the signs and symptoms of hyponatremia?

A

lethargy
headache
confusion
apprehension
seizures
coma
muscle weakness

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11
Q

what are some complications of hyponatremia?

A

cerebral edema

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12
Q

what causes hypernatremia?

A

ingestion of too much sodium without water
insufficient ADH
diabetes insipidus
watery diarrhea
lost of thirst mechanism
prolonged periods of rapid respiration

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13
Q

what are the signs and symptoms of hypernatremia?

A

edema
thirsty if thirst mechanism is still functioning
dehydration
agitation
muscle weakness
seizures

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14
Q

what is the normal value for potassium?

A

3.5 - 5

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15
Q

what is the role of potassium?

A

effects how body cells work, how nerves impulses generates, contractions of all muscles in the body (skeletal, HEART)

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16
Q

what foods contain potassium?

A

citrus fruits
bananas
tomatoes

17
Q

why are patients prescribed with insulin for high potassium levels?

A

insulin promotes movement of potassium into cells and lowers potassium levels

18
Q

what happens to potassium when the body is acidic?

A

hydrogen ions will push the the potassium out of the cell into the blood

19
Q

what are some causes of hypokalemia?

A

diarrhea
diuretics
decreased dietary intake (alcoholism, eating disorders, starvation
too much insulin?

20
Q

signs and symptoms of hypokalemia

A

alkalosis
shallow respirations
irritability
confusion
drowsiness
weakness
fatigue
arrhythmias
lethargy
thready pulse
parastheia

21
Q

cause of hyperkalemia

A

too much potassium intake
renal failure
potassium sparing diuretics
prolonged or severe acidosis
extensive tissue damage

22
Q

effects of hyperkalemia

A

muscle cramps
urine abnormalities
respiratory distress
decreased cardiac contractility
ekg changes
reflexes

23
Q

what is the normal range for calcium?

A
24
Q

what is the role of calcium?

A

bone and teeth
nerve membranes
muscle contractions
blood clotting

25
Q

where is calcium stored?

A

bone

26
Q

who is at risk for calcium imbalance?

A

patients with renal failure