Electrolytes By Steve Casarez RN, MICN, Paramedic Quiz
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Questions and Answers

What is the primary role of electrolytes in the body?

  • To regulate acid-base balance
  • To maintain water balance and osmotic forces (correct)
  • To provide energy for muscle contractions
  • To facilitate cell-to-cell communication

Which electrolyte is the chief extracellular electrolyte and makes up 90% of the extracellular fluid?

  • Chloride
  • Sodium (correct)
  • Potassium
  • Calcium

What is the primary role of chloride, the major anion in the extracellular fluid?

  • To regulate acid-base balance
  • To facilitate muscle contractions
  • To maintain normal balance of fluids (correct)
  • To provide energy for cellular processes

Which of the following is the most common intravenous fluid used by EMS providers?

<p>0.9% Sodium Chloride (Normal Saline) (C)</p> Signup and view all the answers

What is the role of the Renin-Angiotensin-Aldosterone system in electrolyte regulation?

<p>It responds to decreases in sodium levels and increases in potassium levels (C)</p> Signup and view all the answers

Which of the following is the primary location of magnesium within the body?

<p>Intracellular fluid (B)</p> Signup and view all the answers

What is the primary function of bicarbonate (HCO3-) in the body?

<p>To regulate acid-base balance (D)</p> Signup and view all the answers

Which of the following diseases or conditions can commonly affect electrolyte function?

<p>All of the above (D)</p> Signup and view all the answers

What is the primary role of potassium in the body?

<p>To maintain neuromuscular irritability (B)</p> Signup and view all the answers

Which of the following is NOT an EMS drug used to assist with increasing blood pressure?

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

Which of the following is a function of the sodium/potassium pump active transport system?

<p>Allowing cells to have action potential (C)</p> Signup and view all the answers

What is the PRIMARY cause of dehydration?

<p>Loss of fluids from tissues (D)</p> Signup and view all the answers

What is the RECOMMENDED treatment for severe dehydration, according to the text?

<p>Hypotonic IV fluid resuscitation (A)</p> Signup and view all the answers

What is the NORMAL range for serum sodium levels?

<p>135-145 mEq/L (C)</p> Signup and view all the answers

Which of the following is NOT a symptom of hypernatremia (high serum sodium levels)?

<p>Hypotension (low blood pressure) (B)</p> Signup and view all the answers

What is the RECOMMENDED treatment for hypernatremia, according to the text?

<p>Hypotonic fluid resuscitation and close cardiac monitoring (D)</p> Signup and view all the answers

Which of the following is NOT a symptom of hyponatremia (low serum sodium levels)?

<p>Nausea (A)</p> Signup and view all the answers

What is the NORMAL range for serum potassium levels?

<p>3.5-5.0 mEq/L (B)</p> Signup and view all the answers

Which of the following is the PRIMARY function of aldosterone, according to the figure?

<p>Increasing sodium reabsorption in the kidneys (A)</p> Signup and view all the answers

Which condition can cause Hyperkalemia with a serum level greater than 5.5 mEq/L?

<p>Burns (A)</p> Signup and view all the answers

What is the primary treatment option for Hypokalemia with a serum level of 10 mEq/L?

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

Which symptom is NOT commonly associated with Hypocalcemia when levels drop to 3.0 mEq/L?

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

What is a potential cause of Hypokalemia?

<p>Increased parathyroid hormone (PTH) levels (A)</p> Signup and view all the answers

Which condition is NOT typically associated with Hyperkalemia?

<p>Elevated blood glucose levels (C)</p> Signup and view all the answers

What is a common symptom of Hyperkalemia that requires close cardiac monitoring?

<p>Peak T waves on ECG (A)</p> Signup and view all the answers

Which electrolyte disturbance is closely linked to causing muscle weakness?

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

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