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Potassium Disorders

Quiz by Heather Powell

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36 questions
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  • Q1
    The most common cause of hypokalemia is:
    Excess catecholamines
    Aldosterone secretion
    Glucagon secretion
    Severe diarrhea
    30s
  • Q2
    Which of the following is NOT a major hormonal regulator of potassium homeostasis?
    Vasopressin
    Aldosterone
    Catecholamines
    Insulin
    30s
  • Q3
    Insulin stimulates transport of potassium into all of the following areas except:
    Liver
    Adipose tissue
    Renal tubule
    Muscle
    30s
  • Q4
    True or False: Epinephrine moves potassium intracellularly by antagonizing the beta-receptor to activate Na-K-ATPase pump
    True
    False
    30s
  • Q5
    True or False: Epinephrine moves potassium intracellularly by stimulating glycogenolysis (which raises blood glucose to stimulate insulin secretion)
    True
    False
    30s
  • Q6
    Aldosterone is secreted from the adrenal glands in response to which of the following?
    Epinephrine secretion
    Insulin secretion
    Hypokalemia
    Hyperkalemia
    30s
  • Q7
    Acidemia will cause the serum potassium to appear:
    Falsely elevated
    Falsely decreased
    30s
  • Q8
    Alkalemia will cause the serum potassium to appear:
    Falsely decreased
    Falsely elevated
    30s
  • Q9
    For every _____ pH in plasma pH away from 7.4, a ______ mEq/L change occurs to the serum potassium in the opposite direction.
    0.6, 0.1
    0.1, 0.1
    0.1, 0.6
    0.25, 0.5
    30s
  • Q10
    Serum potassium of 2.5-3.0 mEq/L can be classified as ____________ hypokalemia
    Severe
    Moderate
    Mild
    30s
  • Q11
    Serum potassium of <2.5 mEq/L can be classified as ____________ hypokalemia
    Moderate
    Severe
    Mild
    30s
  • Q12
    Serum potassium of 3.1-3.4 mEq/L can be classified as ____________ hypokalemia
    Mild
    Moderate
    Severe
    30s
  • Q13
    Which of the following drug or drug classes will cause a transcellular shift of potassium?
    Diuretics
    Beta-receptor agonists
    Sorbitol
    Aminoglycosides
    30s
  • Q14
    Which of the following drug or drug classes will cause a transcellular shift of potassium?
    Sodium polystyrene sulfonate (SPS)
    Cisplatin
    Insulin
    High-dose penicillins
    30s
  • Q15
    Which of the follow drug or drug classes will NOT cause enhanced renal elimination of potassium?
    Theophylline
    Amphotericin B
    Diuretics
    Cisplatin
    30s

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