Hyponatremia Quiz

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Questions and Answers

What is the definition of hyponatremia in terms of serum/plasma sodium level?

  • Less than 135 mmol/L (correct)
  • Less than 140 mmol/L
  • Less than 130 mmol/L
  • Less than 145 mmol/L

Which of the following conditions can cause increased sodium loss leading to hyponatremia?

  • Dehydration
  • Hypertension
  • Hypoadrenalism (correct)
  • Adrenal insufficiency

Which method is often favored for measuring sodium due to its ease of use?

  • Ion-Selective Electrodes
  • Atomic absorption spectrophotometry
  • Chemical methods (correct)
  • Flame emission spectrophotometry

Which sodium level is considered clinically significant for hyponatremia?

<p>Less than 130 mmol/L (B)</p> Signup and view all the answers

What role do diuretics play in relation to sodium levels?

<p>They increase sodium loss (B)</p> Signup and view all the answers

Which serum/plasma concentration defines hyponatremia?

<p>Less than 135 mmol/L (C)</p> Signup and view all the answers

What is one potential cause of increased sodium loss leading to hyponatremia?

<p>Potassium deficiency (B)</p> Signup and view all the answers

Which method is NOT commonly used to measure sodium levels?

<p>Magnetic resonance imaging (MRI) (A)</p> Signup and view all the answers

What condition is characterized by increased water retention as a cause of hyponatremia?

<p>Cirrhosis (C)</p> Signup and view all the answers

Which diuretic is specifically mentioned as causing increased sodium loss?

<p>Thiazide diuretics (D)</p> Signup and view all the answers

Flashcards

Hyponatremia

A condition where the sodium level in the blood is lower than 135 mmol/L.

What causes hyponatremia?

A decrease in sodium levels in the blood, often caused by excessive loss of sodium or an increase in water retention.

Hypoadrenalism

A medical condition where the adrenal glands don't produce enough hormones, leading to sodium loss and potential hyponatremia.

Potassium Deficiency

A deficiency of potassium in the body, potentially leading to increased sodium loss and hyponatremia.

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Diuretic use

Medications that promote the excretion of water and sodium through urine, which can contribute to hyponatremia.

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Hyponatremia: Prevalence

The most common electrolyte imbalance found in hospitals and communities.

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Hyponatremia: Severity

When sodium levels fall below 130 mmol/L, it can become a serious health problem.

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Hyponatremia: Causes

Too much water retention, increased sodium loss, or a combination of both can cause hyponatremia.

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Hyponatremia: Potassium Link

Low potassium levels can actually lead to sodium loss due to their inverse relationship in the kidneys.

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