Electrolyte Balance- Magnesium : Nursing Course


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A patient that has ingested large amounts of antacids or laxatives may present with:

hypermagnesemia

Rationale: Antacids and laxatives that may be taken for problems with the GI system contain magnesium. When patients take excessive amount of these medications, hypermagnesemia can occur. For slightly elevated levels of magnesium, treatment is to stop taking the antacids. When levels are at a critical level, or patients are symptomatic, the treatment should be more aggressive.


An electrolyte that is found primarily in the cell, and is responsible for energy production and protein metabolism is:

magnesium

Rationale: The majority of magnesium found in the body is in the bones and cells. It is needed for proper muscle, nerve, and enzyme function. Magnesium assists the body in producing energy and metabolizing protein, and is important as a cell regulator in hundreds of chemical reactions in the body. It also assists other electrolytes, primarily sodium and potassium, to move in and out of cells so they can perform their functions in the body.


EKG changes that are present with hypermagnesemia is:

prolonged PR interval

Rationale:

EKG changes that may be present with patients that have low magnesium levels are:

flat or inverted T wave

Rationale:

Hypomagnesemia increases a patient's risk of ventricular dysrhythmias because it increases:

cardiac muscle irritability

Rationale:

Patients with cirrhosis and chronic alcoholism may present with:

hypomagnesemia

Rationale:

Signs and symptoms of hypomagnesemia that a patient may present with are:

muscle weakness and tremors

Rationale:

The major cause of hypermagnesemia is:

renal failure

Rationale:

The normal range of magnesium in the body is:

1.5-2.5 mg/dL

Rationale:

When treating muscle weakness in patients with hypermagnesemia, the medication to be administered is:

calcium gluconate

Rationale:

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