FCCN level 1 Exam Questions with Correct Answers
2025-2026 Guide
1. 135-145 normal sodium levels
2. 3.5-5 normal potassium levels
3. 8.5-10.5 normal calcium levels
4. 1.7-2.2 normal magnesium levels
5. 2.5-4.5 normal phosphorus levels
6. hyponatremia this electrolyte abnormality results in lethargy, n/v, lethargy, and abdominal
cramping; if extremely low- risk for seizures with correction
7. hypernatremia this electrolyte abnormality results in disorientation, thirst, and weakness
8. sodium these electrolyte abnormalities need to be corrected slowly
9. hyperkalemia this electrolyte abnormality results in flaccid muscle paralysis, paresthesias of face,
tongue, feet and hands, and ventricular arrhythmias
10. hypokalemia this electrolyte abnormality results in arrhythmias, impaired urine-concentrating
ability, and hyperglycemia
11. hyperkalemia tall peaked T waves is a sign of what
12. hypokalemia flat t waves is an early sign of what
13. hypokalemia u waves are a late sign of what
14. hypokalemia this electrolyte abnormality increases risk for digoxin toxicity
15. hypocalcemia this electrolyte abnormality results in muscle cramps, tremors, twitching, and
hyperactive deep-tendon reflexes.
16. Trousseau's sign arm/carpal spasm associated with hypocalcemia
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, FCCN level 1 Exam Questions with Correct Answers
2025-2026 Guide
17. Chvostek's sign Cheek, facial spasm when Cheek is tapped associates with hypocalcemia
18. Hypocalcemia a prolonged QT interval is a sign of what electrolyte abnormality
19. hypercalcemia this electrolyte abnormality results in muscle weakness, arrhythmias or heart
block, and decreased deep tendon reflex.
20. loop diuretics this medication is sometimes given to promote calcium removal in severe hyper-
calcemia
21. corticosteroids this medication is sometimes given to decrease absorption of calcium in GI tract
22. phosphates this medication is sometimes given to decrease breakdown of bones in hypercal-
cemia
23. hypomagnesemia this electrolyte abnormality results in muscle weakness, twitching, cramps, and
arrhythmias
24. hypomagnesemia prolonged QT and PR intervals and/or depressed ST segment is a sign of what
25. hypermagne- this electrolyte abnormality results in facial flushing, hypotension, and respiratory
semia depression
26. magnesium this electrolyte ettects the absorption of other electrolytes
27. digoxin toxicity N/V, bradycardia, AV block, and yellow tinged vision is a sign of what
28. Hypophos- this electrolyte abnormality results in decreased hand strength, diflculty speak-
phatemia ing, and mental changes
29. hyperphos- this electrolyte abnormality results in renal failure, and tetany (tingling of finger-
phatemia tips and around mouth, and muscle spasm)
30. hypercalcemia hypophosphatemia is oftentimes associated with
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2025-2026 Guide
1. 135-145 normal sodium levels
2. 3.5-5 normal potassium levels
3. 8.5-10.5 normal calcium levels
4. 1.7-2.2 normal magnesium levels
5. 2.5-4.5 normal phosphorus levels
6. hyponatremia this electrolyte abnormality results in lethargy, n/v, lethargy, and abdominal
cramping; if extremely low- risk for seizures with correction
7. hypernatremia this electrolyte abnormality results in disorientation, thirst, and weakness
8. sodium these electrolyte abnormalities need to be corrected slowly
9. hyperkalemia this electrolyte abnormality results in flaccid muscle paralysis, paresthesias of face,
tongue, feet and hands, and ventricular arrhythmias
10. hypokalemia this electrolyte abnormality results in arrhythmias, impaired urine-concentrating
ability, and hyperglycemia
11. hyperkalemia tall peaked T waves is a sign of what
12. hypokalemia flat t waves is an early sign of what
13. hypokalemia u waves are a late sign of what
14. hypokalemia this electrolyte abnormality increases risk for digoxin toxicity
15. hypocalcemia this electrolyte abnormality results in muscle cramps, tremors, twitching, and
hyperactive deep-tendon reflexes.
16. Trousseau's sign arm/carpal spasm associated with hypocalcemia
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, FCCN level 1 Exam Questions with Correct Answers
2025-2026 Guide
17. Chvostek's sign Cheek, facial spasm when Cheek is tapped associates with hypocalcemia
18. Hypocalcemia a prolonged QT interval is a sign of what electrolyte abnormality
19. hypercalcemia this electrolyte abnormality results in muscle weakness, arrhythmias or heart
block, and decreased deep tendon reflex.
20. loop diuretics this medication is sometimes given to promote calcium removal in severe hyper-
calcemia
21. corticosteroids this medication is sometimes given to decrease absorption of calcium in GI tract
22. phosphates this medication is sometimes given to decrease breakdown of bones in hypercal-
cemia
23. hypomagnesemia this electrolyte abnormality results in muscle weakness, twitching, cramps, and
arrhythmias
24. hypomagnesemia prolonged QT and PR intervals and/or depressed ST segment is a sign of what
25. hypermagne- this electrolyte abnormality results in facial flushing, hypotension, and respiratory
semia depression
26. magnesium this electrolyte ettects the absorption of other electrolytes
27. digoxin toxicity N/V, bradycardia, AV block, and yellow tinged vision is a sign of what
28. Hypophos- this electrolyte abnormality results in decreased hand strength, diflculty speak-
phatemia ing, and mental changes
29. hyperphos- this electrolyte abnormality results in renal failure, and tetany (tingling of finger-
phatemia tips and around mouth, and muscle spasm)
30. hypercalcemia hypophosphatemia is oftentimes associated with
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