NU 110 EXAM 3 (GALEN) NEWEST 2026 ACTUAL
EXAM| NU110 INTEGRATED HUMAN SCIENCES EXAM
3 REVIEW WITH COMPLETE 300 REAL EXAM
QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+ (MOST RECENT!!)
Q1: A client has a serum sodium level of 128 mEq/L. Which of
the following findings should the nurse expect?
A) Thirst and dry mucous membranes
B) Lethargy and confusion
C) Hyperreflexia
D) Tachycardia and hypertension
Answer: B
Rationale: Hyponatremia (Na <135) causes cerebral edema →
lethargy, confusion, seizures, coma. Thirst and dry mucous
membranes occur with hypernatremia.
Q2: A client with heart failure has a potassium level of 3.2
mEq/L. Which ECG change is most likely?
A) Peaked T waves
1
,B) Flat T waves and U waves
C) Widened QRS
D) Shortened QT interval
Answer: B
Rationale: Hypokalemia causes flat T waves, U waves, and ST
depression. Peaked T waves occur in hyperkalemia.
Q3: A client has an arterial blood gas (ABG) result: pH 7.32,
PaCO₂ 48 mmHg, HCO₃ 24 mEq/L. Which acid-base
disturbance is present?
A) Metabolic acidosis
B) Metabolic alkalosis
C) Respiratory acidosis
D) Respiratory alkalosis
Answer: C
Rationale: pH <7.35 = acidosis; PaCO₂ >45 = respiratory
acidosis; HCO₃ normal = uncompensated or partially
compensated. This is acute respiratory acidosis.
2
,Q4: A client with chronic kidney disease (CKD) is most likely
to have which electrolyte imbalance?
A) Hypokalemia
B) Hyperkalemia
C) Hyponatremia
D) Hypophosphatemia
Answer: B
Rationale: CKD reduces potassium excretion → hyperkalemia
(K⁺ >5.0 mEq/L). Hypokalemia can occur with diuretics but is not
the primary CKD imbalance.
Q5: A client with heart failure is prescribed furosemide
(Lasix). Which laboratory value should the nurse monitor most
closely?
A) Sodium
B) Potassium
C) Calcium
D) Magnesium
Answer: B
Rationale: Loop diuretics (furosemide) cause potassium wasting
→ hypokalemia. Monitor K⁺ levels.
3
, Q6: A client’s ABG shows: pH 7.48, PaCO₂ 30 mmHg, HCO₃
22 mEq/L. This indicates:
A) Metabolic acidosis
B) Metabolic alkalosis
C) Respiratory acidosis
D) Respiratory alkalosis
Answer: D
Rationale: pH >7.45 = alkalosis; PaCO₂ <35 = respiratory
alkalosis. HCO₃ normal. Causes include anxiety, pain, pulmonary
embolism, or hypoxemia.
Q7: A client with hypertension is prescribed
hydrochlorothiazide (HCTZ). Which electrolyte imbalance is
associated with thiazide diuretics?
A) Hyperkalemia
B) Hypokalemia
C) Hypernatremia
D) Hypermagnesemia
4
EXAM| NU110 INTEGRATED HUMAN SCIENCES EXAM
3 REVIEW WITH COMPLETE 300 REAL EXAM
QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+ (MOST RECENT!!)
Q1: A client has a serum sodium level of 128 mEq/L. Which of
the following findings should the nurse expect?
A) Thirst and dry mucous membranes
B) Lethargy and confusion
C) Hyperreflexia
D) Tachycardia and hypertension
Answer: B
Rationale: Hyponatremia (Na <135) causes cerebral edema →
lethargy, confusion, seizures, coma. Thirst and dry mucous
membranes occur with hypernatremia.
Q2: A client with heart failure has a potassium level of 3.2
mEq/L. Which ECG change is most likely?
A) Peaked T waves
1
,B) Flat T waves and U waves
C) Widened QRS
D) Shortened QT interval
Answer: B
Rationale: Hypokalemia causes flat T waves, U waves, and ST
depression. Peaked T waves occur in hyperkalemia.
Q3: A client has an arterial blood gas (ABG) result: pH 7.32,
PaCO₂ 48 mmHg, HCO₃ 24 mEq/L. Which acid-base
disturbance is present?
A) Metabolic acidosis
B) Metabolic alkalosis
C) Respiratory acidosis
D) Respiratory alkalosis
Answer: C
Rationale: pH <7.35 = acidosis; PaCO₂ >45 = respiratory
acidosis; HCO₃ normal = uncompensated or partially
compensated. This is acute respiratory acidosis.
2
,Q4: A client with chronic kidney disease (CKD) is most likely
to have which electrolyte imbalance?
A) Hypokalemia
B) Hyperkalemia
C) Hyponatremia
D) Hypophosphatemia
Answer: B
Rationale: CKD reduces potassium excretion → hyperkalemia
(K⁺ >5.0 mEq/L). Hypokalemia can occur with diuretics but is not
the primary CKD imbalance.
Q5: A client with heart failure is prescribed furosemide
(Lasix). Which laboratory value should the nurse monitor most
closely?
A) Sodium
B) Potassium
C) Calcium
D) Magnesium
Answer: B
Rationale: Loop diuretics (furosemide) cause potassium wasting
→ hypokalemia. Monitor K⁺ levels.
3
, Q6: A client’s ABG shows: pH 7.48, PaCO₂ 30 mmHg, HCO₃
22 mEq/L. This indicates:
A) Metabolic acidosis
B) Metabolic alkalosis
C) Respiratory acidosis
D) Respiratory alkalosis
Answer: D
Rationale: pH >7.45 = alkalosis; PaCO₂ <35 = respiratory
alkalosis. HCO₃ normal. Causes include anxiety, pain, pulmonary
embolism, or hypoxemia.
Q7: A client with hypertension is prescribed
hydrochlorothiazide (HCTZ). Which electrolyte imbalance is
associated with thiazide diuretics?
A) Hyperkalemia
B) Hypokalemia
C) Hypernatremia
D) Hypermagnesemia
4
