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Fluid & Electrolytes

Fluid & Electrolytes NCLEX® Practice Questions

Sodium, potassium, calcium, magnesium imbalances, ABG interpretation, IV therapy, and acid-base balance. The NCLEX® tests these constantly.

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2026 NCSBN test planSBA, SATA, BowTie, CJ13 subtopics

Try 3 fluid & electrolytes questions

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Q1of 3

A nurse is reviewing the assessment findings for a 72-year-old patient admitted with suspected dehydration. The patient reports decreased fluid intake over the past 3 days due to nausea. Which assessment finding would the nurse expect to observe in a patient with deficient fluid volume?

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What you'll practice

Fluid & Electrolytes questions span 13 subtopics aligned to the 2026 NCSBN test plan.

Hyponatremia
Hypernatremia
Hypokalemia
Hyperkalemia
Hypocalcemia
Hypercalcemia
Hypomagnesemia
Hypermagnesemia
Acid-Base Balance & ABG Interpretation
IV Therapy & Fluid Replacement
Dehydration & Fluid Volume Overload
Phosphorus & Chloride Imbalances
Show all 13 subtopics
Fluid Spacing & Third-Space Fluid Shifts

How it works

  1. Start practicing Fluid & Electrolytes

    Jump into adaptive fluid & electrolytes NCLEX® practice. Lily picks questions at the right difficulty for you.

  2. Get feedback after every question

    Each rationale explains why the correct answer works. Difficulty adjusts in real time based on your answers.

  3. See your gaps close before exam day

    Track your fluid & electrolytes mastery. Lily highlights weak subtopics and drills them harder.

Common questions

How many fluid & electrolytes NCLEX® questions does StudyWithLily have?

Hundreds of questions covering every major electrolyte imbalance, ABG interpretation, IV therapy, fluid volume overload, dehydration, and acid-base disorders.

Does StudyWithLily cover fluid & electrolytes for the 2026 NCLEX®?

Yes. All F&E content is aligned to the 2026 NCSBN RN Test Plan.

Can I practice fluid & electrolytes questions for free?

Try the sample questions on this page. Sign up for a 7-day free trial for unlimited practice.

What question types are available for fluid & electrolytes?

SBA, SATA, BowTie, and Clinical Judgment. All Next Gen NCLEX® formats.

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Adaptive fluid & electrolytes practice with every Next Gen format. Instant rationales. 7-day free trial, no credit card required.

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