Magnesium Flashcards
What is the normal range for magnesium?
1.8-3.0
Where is magnesium stored?
Bones and cartilage
What are some of the functions of magnesium?
Skeletal muscle contraction CHO metabolism ATP formation Vitamin activation Cell growth Blood Coagulation
Magnesium is a ______ relaxant
Smooth Muscle
Magnesium is interdependent with ____
Potassium
What is the cause of hypomagnesemia
Decreased absorption
increased excretion
What are some things that can affect the absorption of magnesium?
Malnutrition Alcoholism Celiac disease Crohns disease Chronic diarrhea NG suctioning
What medications can decrease magnesium levels?
Diuretics
What are the three cardio signs of low magnesium?
Tachycardia
Hypertension
Cardiac arrhythmias
What are the Neuro and Musculoskeletal signs of low magnesium?
Skeletal muscle weakness
Increased impulse transmission
Tremors
Athetoid movements
What are the three interventions for hypomagnesiemia
DC loop diuretics, osmotic diuretics and aminoglycocide ABO’s
Give IV mag sulfate
may need to replace caclium as well
What medication is used to treat preeclampsia?
IV magnesium Sulfate
What is the main effect of hypermagnesemia?
Membranes need more stimuli to become excited
What are the general causes of hypermagnesemia?
Increased intake or decreased renal excretion
What are the Cardio signs of hypermagnesemia?
Bradycardia
Hypotension
Prolonged PR interval with a mide QRS complex
