NCLEX RN Practice Question # 949

NCLEX Examination.

Practice Question # 949.

 

nclex quiz

Hypokalemia:

The normal potassium level is 3.5 to 5.0 mEq/L (3.5 to 5.0 mmol/L).

Description

  1. Hypokalemia is a serum potassium level lower than 3.5 mEq/L (3.5 mmol/L)
  2. Potassium deficit is potentially life-threatening because every body system is affected

 

Causes

  1. Actual total body potassium loss
  • Excessive use of medications such as diuretics or corticosteroids
  • Increased secretion of aldosterone, such as in Cushing’s syndrome
  • Vomiting, diarrhea
  • Wound drainage, particularly gastrointestinal
  • Prolonged nasogastric suction
  • Excessive diaphoresis
  • Kidney disease impairing reabsorption of potassium
  1. Inadequate potassium intake: Fasting; nothing by mouth status
  2. Movement of potassium from the extracellular fluid to the intracellular fluid
  • Alkalosis
  • Hyperinsulinism
  1. Dilution of serum potassium
  • Water intoxication
  • IV therapy with potassium-deficient solutions

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