magnesium Flashcards

1
Q

magnesium

A

body’s 2nd most abundant cation

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2
Q

normal serum levels (mag is really low)

A

1.5 - 2 mEq/L

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3
Q

magnesium important for (same as Na)

A

muscle activity, neuortransmission, and mycardial.

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4
Q

1/3 to 1/4 is bound to (maggie loves protein)

A

protein. protein values therefore affect magneisum values

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5
Q

mag is absorbed and excreted where?

A

absorbed by GI tract and excreted by kidneys.

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6
Q

hypomagnesemia causes - just eating, but what about iv solutions? (little maggie is not inside the dextrose IV)

A

inadaquate intake (rare for most ppl, but ppl who are NPO need it. there is no Mag in dextrose or saline solutions or lactate)

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7
Q

GI disorders cause hypo or hyper? And ex. of what disorders…

A

hypomagnesemia, ex cancer, pancratic and colitis.

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8
Q

hypomagnesemia increase GI or urinary loss how? And who gets it? THINK - it’s absorbed in the GI, so…(Little Maggie is an alchy who vomits and gets ng suctioning)

A

prolonged vomiting, nasogastric suctioning, and diruetics, alcoholics get it a lot.

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9
Q

mag is moved into cells how?

A

with insulin. usually move into new cells, which can cause hypomagnesemia

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10
Q

hypomagnesemia - what other mineral do you need to monitor?

A

calcium, this is what you’ll see.

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11
Q

hypomagnesemia manifestations (sheriff is gone - ppl twitching and digs)

A

muscle twitching, convulsions, tetany, HTN, digatalis

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12
Q

hypomagnesemia treatment - what foods to eat?

A

encourage foods like cheese, leavy greens, avacado, nuts, fish. may do IV magnesium.

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13
Q

monitor I/O when

A

doing IV mag.

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14
Q

hypermagnesia causes (moon face messes with big maggie and her kidneys)

A

renal failure and addisons disease (not enough cortisol and aldosterone, creates low bp).

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15
Q

hypermagnesia clinical manifestations - think same as calcium and potassium (big maggie slows and breaks my heart)

A

neuormsuclar and cardiac. weakness, lethargy, flushing, hypotension and bradycardia.

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16
Q

nursing intervention for hypermagnesemia (big maggie need apical, too)

A

assess nuero, dtr, apical heart rate. safetly measure, call light and don’t get out of bed w/out assistance. can cause weakness

17
Q

if kidney functions are ok, with hypermagnesemia, dr may order (salt calms the sheriff)

A

sodium chloride to promote excretion of mag.

18
Q

hypermagnesemia - what meds to treat it? (big maggie hospital)

A

calcium gluconate to counter cardiac effects of increased Mag. may need dialysis if treatments fail.

19
Q

hypomagnesia - how to infuse magnesium and what to assess? (maggie is not free, needs a few hours to IV)

A

Don’t infuse free flow, 1000ml bag over a few hours. use a volutroll. assess for mag toxcitity, VS, lung, DTR, and mag levels.

20
Q

antidote for hypermagnesium? (maggie’s antidote is glue - maggie hospital)

A

Calcium gluconate is antagonist (antidote)

21
Q

causes of hypermagnesium - cutting the cells and ingesting too much? (M for maalox and magnesium)

A

tumor lysis syndrome. anything inside the cell. may overuse over the counter, maalox.

22
Q

what makes me french? (maggie milk is french)

A

calcium and magnesium

23
Q

Eat a big maggie during labor

A

increased ingestion in labor and delivery hypermagnesemia

24
Q

digoxin (too much milk and not enough maggie, can you dig?

A

hypomagnesmia and hypercalcemia