magnesium Flashcards
magnesium
body’s 2nd most abundant cation
normal serum levels (mag is really low)
1.5 - 2 mEq/L
magnesium important for (same as Na)
muscle activity, neuortransmission, and mycardial.
1/3 to 1/4 is bound to (maggie loves protein)
protein. protein values therefore affect magneisum values
mag is absorbed and excreted where?
absorbed by GI tract and excreted by kidneys.
hypomagnesemia causes - just eating, but what about iv solutions? (little maggie is not inside the dextrose IV)
inadaquate intake (rare for most ppl, but ppl who are NPO need it. there is no Mag in dextrose or saline solutions or lactate)
GI disorders cause hypo or hyper? And ex. of what disorders…
hypomagnesemia, ex cancer, pancratic and colitis.
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)
prolonged vomiting, nasogastric suctioning, and diruetics, alcoholics get it a lot.
mag is moved into cells how?
with insulin. usually move into new cells, which can cause hypomagnesemia
hypomagnesemia - what other mineral do you need to monitor?
calcium, this is what you’ll see.
hypomagnesemia manifestations (sheriff is gone - ppl twitching and digs)
muscle twitching, convulsions, tetany, HTN, digatalis
hypomagnesemia treatment - what foods to eat?
encourage foods like cheese, leavy greens, avacado, nuts, fish. may do IV magnesium.
monitor I/O when
doing IV mag.
hypermagnesia causes (moon face messes with big maggie and her kidneys)
renal failure and addisons disease (not enough cortisol and aldosterone, creates low bp).
hypermagnesia clinical manifestations - think same as calcium and potassium (big maggie slows and breaks my heart)
neuormsuclar and cardiac. weakness, lethargy, flushing, hypotension and bradycardia.