Wk 3 Magnesium and Phosphorous Imbalances Flashcards Preview

Med Surg I > Wk 3 Magnesium and Phosphorous Imbalances > Flashcards

Flashcards in Wk 3 Magnesium and Phosphorous Imbalances Deck (24)
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1
Q

What does magnesium do?

A

Helps stabilize cardiac and smooth muscle cells

2
Q

What is the main cause of hypermagnesemia?

A

renal failure and too much magnesium intake

3
Q

Pregnant women sometimes get hypermagnesemia because…

A

They take IV mag

4
Q

What are the most common causes of mypomagnesemia?

A

GI loss such as N/V/D

Malnourishment (such as alcoholism)

5
Q

If someone has too much magnesium is __ muscles and nerves

A

SLOWS

6
Q

What are the clinical manifestations of hypermagnesemia?

A

Lethargy
Drowsiness
Muscle weakness
Decreased DTRs (deep tendon reflexes)

7
Q

Two drugs to avoid if you have too much mag

A

Malox, mylanta

8
Q

If someone if hypermagnesemic, they should avoid what foods?

A
Green veggies
Nuts
Bananas
Oranges
PB
Chocolate
9
Q

If kidneys are okay, what will we do for hypermagnesemia?

A

Force fluid excretion

10
Q

If the kidneys are not okay, what will we do for hypermagnesemia?

A

Dialysis

11
Q

If a patient is hypermagnesemic and symptomatic, what will we give?

A

IV calcium gluconate

12
Q

Hypomagnesemia revs up nerves and muscles are resembles

A

hypocalcemia

13
Q

What are the clinical manifestations of hypomagnesemia?

A
Confusion
Muscle cramps
Tremors
Seizures
Vertigo
Hyperactive DTRs
May see Chvostk's or Trousseu's sign
Increased vitals
Dysrhythmias
14
Q

Oral replacement

A

Mylanta

Mag Sulfate

15
Q

IV mag sulfate

A

replace over several days

Can give IV push if necessary

16
Q

Rapid infusion of mag can cause

A

severe hypotension

17
Q

__ and phosphorous and inversely related

A

Calcium

18
Q

What is the number one reason for too much phosphorous?

A

Kidney failure

19
Q

Not enough phosphorous cause

A

Malnutrition - alcoholism

20
Q

Typically too much phosphorous the patient is…

A

asymptomatic

21
Q

What are symptoms of too much phosphorous?

A

The same as too little calcium because of the inverse relationship

22
Q

What are the treatment for too much phosphorous?

A

Calcium based phosphate binders,

dialysis if severe

23
Q

Not enough phos can cause…

A

CNS depression including respiratory muscles

24
Q

Iv phos should be given over…

A

a long period of time