FCCS FCCS Fluid and Electrolyte Management

Question 1

Which electrolyte is the primary determinant of extracellular fluid volume and intravascular volume?

Accepted Answer

Sodium

Answer

Potassium

Answer

Chloride

Answer

Bicarbonate

Question 2

Which IV fluid is considered isotonic and is appropriate for initial fluid resuscitation in hypovolemia?

Accepted Answer

0.9% Normal saline

Answer

5% Dextrose in water (D5W)

Answer

0.45% Normal saline

Answer

3% Hypertonic saline

Question 3

What is the normal serum sodium concentration range?

Accepted Answer

135–145 mEq/L

Answer

120–130 mEq/L

Answer

125–135 mEq/L

Answer

145–155 mEq/L

Question 4

Which urine output threshold is commonly used to indicate adequate fluid resuscitation in critically ill adults?

Accepted Answer

0.5 mL/kg/hr

Answer

0.1 mL/kg/hr

Answer

0.3 mL/kg/hr

Answer

1.5 mL/kg/hr

Question 5

What is the most common cause of hyponatremia in ICU patients?

Accepted Answer

Syndrome of Inappropriate Antidiuretic Hormone (SIADH)

Answer

Diabetes insipidus

Answer

Excessive sodium intake

Answer

Hyperglycemia

Question 6

Which IV fluid is considered a balanced crystalloid and is preferred over normal saline to reduce hyperchloremic acidosis?

Accepted Answer

Lactated Ringer's solution

Answer

D5W

Answer

0.45% NaCl

Answer

3% NaCl

Question 7

A patient with hemorrhagic shock has a blood pressure of 80/50 mmHg and heart rate of 130 bpm. What is the most appropriate initial fluid strategy?

Accepted Answer

Administer 1–2 L balanced crystalloid bolus

Answer

Administer 250 mL D5W bolus

Answer

Restrict all fluids until bleeding is controlled

Answer

Give 50 mEq sodium bicarbonate IV