The patient is receiving tube feedings due to a jaw surgery. What ...

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The patient is receiving tube feedings due to a jaw surgery. What change in assessment findings should prompt the nurse to request an order for serum sodium concentration?
 
  a. Development of ankle or sacral edema
  b. Increased skin tenting and dry mouth
  c. Postural hypotension and tachycardia
  d. Decreased level of consciousness

Question 2

The patient with which diagnosis should have the highest priority for teaching regarding foods that are high in magnesium?
 
  a. Severe hemorrhage
  b. Diabetes insipidus
  c. Oliguric renal disease
  d. Adrenal insufficiency

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Answer to Question 1

ANS: D
Tube feedings pose a risk for hypernatremia unless adequate water is administered between tube feedings. Hypernatremia causes the level of consciousness to decrease. The serum sodium concentration is a laboratory measure for osmolality imbalances, not ECV imbalances. Edema is a sign of ECV excess, not hypernatremia. Skin tenting, dry mouth, postural hypotension, and tachycardia all can be signs of ECV deficit.

Answer to Question 2

ANS: C
When renal excretion is decreased, magnesium intake must be decreased also, to prevent hypermagnesemia. The other conditions are not likely to require adjustment of magnesium intake.

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