NUR 3300 Exam 2 | (2026) Nursing Exam Questions | Practice II (PDF)

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, NUR 3300 Exam 2 | (2026) Nursing Exam

Questions | Practice II (PDF)

1. A patient has a serum sodium of 118 mEq/L. Which

assessment finding is most concerning?

a) Muscle cramps

b) Nausea and vomiting

c) Altered mental status

d) Dry mucous membranes

Answer: c

Rationale: Severe hyponatremia (<120 mEq/L) can cause

cerebral edema, leading to seizures, coma, and

respiratory arrest. Altered mental status is the most

critical sign.

2. A patient with heart failure has edema and shortness

of breath. Which dietary restriction is most appropriate?

a) Low potassium

b) Low sodium

c) High calcium
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,d) High magnesium

Answer: b

Rationale: Sodium restriction reduces fluid retention,

decreasing preload and pulmonary congestion in heart

failure.

3. Which IV fluid is most appropriate for a patient with

hypovolemic shock?

a) 0.45% NaCl

b) D5W

c) 0.9% NaCl

d) 3% NaCl

Answer: c

Rationale: Isotonic saline (0.9% NaCl) expands

intravascular volume without causing rapid osmotic shifts.

4. A patient has a potassium level of 6.8 mEq/L. Which

ECG change is expected?

a) Flattened T waves

b) Prominent U waves

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, c) Tall peaked T waves
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d) ProlongedPRinterval k k




Answer: c
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Rationale: Hyperkalemia causes tall, peaked T waves, widened
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QRS, and possible sine wave pattern.
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5. A patient on furosemide develops muscle weakness and
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cramping. Which electrolyte imbalance is most likely?
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a) Hypernatremia

b) Hypokalemia

c) Hypercalcemia

d) Hypermagnesemia

Answer: b
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Rationale: Loop diuretics increase potassium excretion, leading
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to hypokalemia and neuromuscular irritability.
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6. Which finding indicates that IV potassium replacement
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should be stopped immediately?
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a) Mild nausea k




b) Serum potassium 4.0 mEq/L k k k




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