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NCLEX® Prep · Fluid & Electrolytes

Fluid & Electrolytes
NCLEX® practice.

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 68-year-old client was admitted 2 days ago following a mild stroke affecting the left side. On admission, the client was independent with all activities of daily living (ADLs). Today, the nurse observes that the client is alert and oriented ×3, with 3/5 strength in the left upper and lower extremities and intact cognition. The client is attempting to dress himself but moves slowly and has difficulty pulling his left sleeve over his shoulder. The health care provider has cleared the client for ADL participation. The client states, "I can do this, just give me a moment." What is the priority nursing action?

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Vol. 01 · Coverage

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
Vol. 02 · The Blueprint

Where fluid & electrolytes lands on the 2026 test plan

The NCLEX® scores you across eight Client Needs categories, each with an official share of your exam. Every fluid & electrolytes question here is mapped to the 2026 NCSBN test plan, so this practice flows straight into the categories below.

Basic Care and Comfort612%
Reduction of Risk Potential915%
Physiological Adaptation1117%

See the full 2026 test plan map →

Vol. 03 · The Method

How it works

  1. Start practicing Fluid & Electrolytes

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

    Difficulty adjusts in real time based on your answers.

  2. Get feedback after every question

    Each rationale explains why the correct answer works and why the others don't.

    You understand the reasoning, not just the answer.

  3. See your gaps close

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

    You always know where to focus next.

Vol. 04 · Questions

Common questions

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

Fluid and electrolyte questions cover sodium, potassium, calcium, and magnesium imbalances, ABG interpretation, IV solutions and infusion safety, dehydration versus fluid overload, and acid-base compensation. Expect a potassium of 2.9 mEq/L on furosemide, Trousseau's sign pointing to hypocalcemia, and stepping through pH, CO2, and HCO3 without guessing.

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

Yes. F&E content maps to Physiological Adaptation and Reduction of Risk Potential in the 2026 NCSBN test plan, and it threads through renal, cardiac, endocrine, and GI questions everywhere else on the exam.

Can I practice fluid & electrolytes questions for free?

Yes. Try the samples free above, no account. A free account adds 150 adaptive questions a month with full rationales.

What question types are available for fluid & electrolytes?

SBA, SATA, BowTie, and Drop-Down Cloze. ABG interpretation fits the Cloze format: name the imbalance, then the compensation.

NCLEX® Prep · Fluid & Electrolytes

Start practicing
fluid & electrolytes.

Adaptive fluid & electrolytes practice with instant rationales. Free includes SBA, SATA, Matrix, and Drop-Down Cloze, with 150 questions a month. Full Access is $15/month and adds unlimited NGN questions (BowTie and Unfolding Case Studies).

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Study With Lily · Est. 20262026 NCSBN Test Plan · Aligned

Study With Lily is an independent study tool and is not affiliated with, endorsed by, or associated with the National Council of State Boards of Nursing (NCSBN®) or the NCLEX® examination. NCLEX® is a registered trademark of NCSBN®.