NLN NEX EXAM AND PRACTICE EXAM TEST
BANK| NLN NURSING ENTRANCE EXAM
PREP WITH QUESTIONS AND CORRECT
ANSWERS/ ALREADY GRADED A+ (BRAND
NEW!)
Question 1: A patient is prescribed 0.25 mg of digoxin. The available tablets
are 0.125 mg each. How many tablets should the nurse administer?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 2.5 tablets
CORRECT ANSWER: C. 2 tablets
Rationale: To determine the correct dose, divide the ordered dose by the available
strength: 0.25 mg ÷ 0.125 mg = 2 tablets. Accurate dosage calculation is essential
to prevent under- or overdosing of this cardiac glycoside.
Question 2: Which of the following best describes the primary function of the
mitochondria within a human cell?
A. Protein synthesis
B. Storage of genetic material
C. Production of ATP through cellular respiration
D. Detoxification of harmful substances
CORRECT ANSWER: C. Production of ATP through cellular respiration
Rationale: Mitochondria are the powerhouses of the cell, generating adenosine
triphosphate (ATP) via oxidative phosphorylation. This energy currency supports
nearly all cellular processes.
Question 3: A nurse is reviewing a patient’s arterial blood gas results: pH 7.28,
PaCO₂ 55 mm Hg, HCO₃⁻ 24 mEq/L. Which acid-base imbalance is present?
A. Metabolic acidosis
B. Metabolic alkalosis
C. Respiratory acidosis
D. Respiratory alkalosis
Page 1 of 104
,CORRECT ANSWER: C. Respiratory acidosis
Rationale: A low pH (acidosis) combined with elevated PaCO₂ indicates respiratory
acidosis. The bicarbonate is within normal range, confirming the primary respiratory
origin.
Question 4: Convert 2.5 liters to milliliters.
A. 25 mL
B. 250 mL
C. 2,500 mL
D. 25,000 mL
CORRECT ANSWER: C. 2,500 mL
Rationale: There are 1,000 milliliters in one liter. Therefore, 2.5 L × 1,000 = 2,500 mL.
Accurate unit conversion is critical in fluid administration and medication dosing.
Question 5: Which structure is responsible for filtering blood and forming
urine in the kidney?
A. Loop of Henle
B. Glomerulus
C. Collecting duct
D. Renal pelvis
CORRECT ANSWER: B. Glomerulus
Rationale: The glomerulus is a capillary network within Bowman’s capsule that filters
blood plasma to initiate urine formation through glomerular filtration.
Question 6: The physician orders 500 mg of an antibiotic to be given every 8
hours. The medication is available as 250 mg capsules. How many capsules will
the patient receive in a 24-hour period?
A. 2 capsules
B. 4 capsules
C. 6 capsules
D. 8 capsules
CORRECT ANSWER: C. 6 capsules
Rationale: Each dose requires 500 mg ÷ 250 mg = 2 capsules. With three doses in
24 hours (every 8 hours), total capsules = 2 × 3 = 6.
Question 7: Which of the following is the correct order of the stages of
mitosis?
A. Prophase, metaphase, anaphase, telophase
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,B. Metaphase, prophase, telophase, anaphase
C. Anaphase, prophase, metaphase, telophase
D. Telophase, anaphase, metaphase, prophase
CORRECT ANSWER: A. Prophase, metaphase, anaphase, telophase
Rationale: Mitosis proceeds sequentially: prophase (chromosome condensation),
metaphase (alignment at the equator), anaphase (sister chromatid separation), and
telophase (nuclear envelope reformation).
Question 8: A solution has a pH of 3. This solution is best described as:
A. Strongly alkaline
B. Weakly alkaline
C. Neutral
D. Strongly acidic
CORRECT ANSWER: D. Strongly acidic
Rationale: The pH scale ranges from 0 to 14. Values below 7 indicate acidity; a pH of
3 is strongly acidic because each unit represents a tenfold difference in hydrogen
ion concentration.
Question 9: Which cranial nerve is responsible for the sense of smell?
A. Optic nerve (CN II)
B. Olfactory nerve (CN I)
C. Trigeminal nerve (CN V)
D. Facial nerve (CN VII)
CORRECT ANSWER: B. Olfactory nerve (CN I)
Rationale: The olfactory nerve (cranial nerve I) transmits sensory information related
to smell from the nasal cavity to the brain.
Question 10: Calculate the intravenous flow rate in mL/hr for 1,000 mL of
normal saline to be infused over 8 hours.
A. 100 mL/hr
B. 125 mL/hr
C. 150 mL/hr
D. 175 mL/hr
CORRECT ANSWER: B. 125 mL/hr
Rationale: Flow rate = total volume ÷ time in hours = 1,000 mL ÷ 8 hours = 125
mL/hr. Correct calculation ensures safe and accurate fluid delivery.
Question 11: Which of the following electrolytes is the primary cation in
extracellular fluid?
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, A. Potassium
B. Sodium
C. Calcium
D. Magnesium
CORRECT ANSWER: B. Sodium
Rationale: Sodium is the predominant extracellular cation and plays a major role in
fluid balance, nerve impulse transmission, and muscle contraction.
Question 12: A patient weighs 165 pounds. What is the patient’s weight in
kilograms? (1 kg = 2.2 lb)
A. 60 kg
B. 75 kg
C. 80 kg
D. 85 kg
CORRECT ANSWER: B. 75 kg
Rationale: Divide pounds by 2.2: 165 ÷ 2.2 = 75 kg. Weight conversion is essential
for medication dosing based on body weight.
Question 13: Which organ produces bile that aids in the digestion of fats?
A. Pancreas
B. Liver
C. Gallbladder
D. Stomach
CORRECT ANSWER: B. Liver
Rationale: The liver continuously produces bile, which is stored and concentrated in
the gallbladder and released into the duodenum to emulsify fats.
Question 14: In the process of protein synthesis, which molecule carries the
amino acids to the ribosome?
A. mRNA
B. tRNA
C. rRNA
D. DNA
CORRECT ANSWER: B. tRNA
Rationale: Transfer RNA (tRNA) transports specific amino acids to the ribosome,
where they are added to the growing polypeptide chain according to the mRNA
codon sequence.
Question 15: A medication is ordered at 4 mg/kg for a child weighing 20 kg.
Page 4 of 104
BANK| NLN NURSING ENTRANCE EXAM
PREP WITH QUESTIONS AND CORRECT
ANSWERS/ ALREADY GRADED A+ (BRAND
NEW!)
Question 1: A patient is prescribed 0.25 mg of digoxin. The available tablets
are 0.125 mg each. How many tablets should the nurse administer?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 2.5 tablets
CORRECT ANSWER: C. 2 tablets
Rationale: To determine the correct dose, divide the ordered dose by the available
strength: 0.25 mg ÷ 0.125 mg = 2 tablets. Accurate dosage calculation is essential
to prevent under- or overdosing of this cardiac glycoside.
Question 2: Which of the following best describes the primary function of the
mitochondria within a human cell?
A. Protein synthesis
B. Storage of genetic material
C. Production of ATP through cellular respiration
D. Detoxification of harmful substances
CORRECT ANSWER: C. Production of ATP through cellular respiration
Rationale: Mitochondria are the powerhouses of the cell, generating adenosine
triphosphate (ATP) via oxidative phosphorylation. This energy currency supports
nearly all cellular processes.
Question 3: A nurse is reviewing a patient’s arterial blood gas results: pH 7.28,
PaCO₂ 55 mm Hg, HCO₃⁻ 24 mEq/L. Which acid-base imbalance is present?
A. Metabolic acidosis
B. Metabolic alkalosis
C. Respiratory acidosis
D. Respiratory alkalosis
Page 1 of 104
,CORRECT ANSWER: C. Respiratory acidosis
Rationale: A low pH (acidosis) combined with elevated PaCO₂ indicates respiratory
acidosis. The bicarbonate is within normal range, confirming the primary respiratory
origin.
Question 4: Convert 2.5 liters to milliliters.
A. 25 mL
B. 250 mL
C. 2,500 mL
D. 25,000 mL
CORRECT ANSWER: C. 2,500 mL
Rationale: There are 1,000 milliliters in one liter. Therefore, 2.5 L × 1,000 = 2,500 mL.
Accurate unit conversion is critical in fluid administration and medication dosing.
Question 5: Which structure is responsible for filtering blood and forming
urine in the kidney?
A. Loop of Henle
B. Glomerulus
C. Collecting duct
D. Renal pelvis
CORRECT ANSWER: B. Glomerulus
Rationale: The glomerulus is a capillary network within Bowman’s capsule that filters
blood plasma to initiate urine formation through glomerular filtration.
Question 6: The physician orders 500 mg of an antibiotic to be given every 8
hours. The medication is available as 250 mg capsules. How many capsules will
the patient receive in a 24-hour period?
A. 2 capsules
B. 4 capsules
C. 6 capsules
D. 8 capsules
CORRECT ANSWER: C. 6 capsules
Rationale: Each dose requires 500 mg ÷ 250 mg = 2 capsules. With three doses in
24 hours (every 8 hours), total capsules = 2 × 3 = 6.
Question 7: Which of the following is the correct order of the stages of
mitosis?
A. Prophase, metaphase, anaphase, telophase
Page 2 of 104
,B. Metaphase, prophase, telophase, anaphase
C. Anaphase, prophase, metaphase, telophase
D. Telophase, anaphase, metaphase, prophase
CORRECT ANSWER: A. Prophase, metaphase, anaphase, telophase
Rationale: Mitosis proceeds sequentially: prophase (chromosome condensation),
metaphase (alignment at the equator), anaphase (sister chromatid separation), and
telophase (nuclear envelope reformation).
Question 8: A solution has a pH of 3. This solution is best described as:
A. Strongly alkaline
B. Weakly alkaline
C. Neutral
D. Strongly acidic
CORRECT ANSWER: D. Strongly acidic
Rationale: The pH scale ranges from 0 to 14. Values below 7 indicate acidity; a pH of
3 is strongly acidic because each unit represents a tenfold difference in hydrogen
ion concentration.
Question 9: Which cranial nerve is responsible for the sense of smell?
A. Optic nerve (CN II)
B. Olfactory nerve (CN I)
C. Trigeminal nerve (CN V)
D. Facial nerve (CN VII)
CORRECT ANSWER: B. Olfactory nerve (CN I)
Rationale: The olfactory nerve (cranial nerve I) transmits sensory information related
to smell from the nasal cavity to the brain.
Question 10: Calculate the intravenous flow rate in mL/hr for 1,000 mL of
normal saline to be infused over 8 hours.
A. 100 mL/hr
B. 125 mL/hr
C. 150 mL/hr
D. 175 mL/hr
CORRECT ANSWER: B. 125 mL/hr
Rationale: Flow rate = total volume ÷ time in hours = 1,000 mL ÷ 8 hours = 125
mL/hr. Correct calculation ensures safe and accurate fluid delivery.
Question 11: Which of the following electrolytes is the primary cation in
extracellular fluid?
Page 3 of 104
, A. Potassium
B. Sodium
C. Calcium
D. Magnesium
CORRECT ANSWER: B. Sodium
Rationale: Sodium is the predominant extracellular cation and plays a major role in
fluid balance, nerve impulse transmission, and muscle contraction.
Question 12: A patient weighs 165 pounds. What is the patient’s weight in
kilograms? (1 kg = 2.2 lb)
A. 60 kg
B. 75 kg
C. 80 kg
D. 85 kg
CORRECT ANSWER: B. 75 kg
Rationale: Divide pounds by 2.2: 165 ÷ 2.2 = 75 kg. Weight conversion is essential
for medication dosing based on body weight.
Question 13: Which organ produces bile that aids in the digestion of fats?
A. Pancreas
B. Liver
C. Gallbladder
D. Stomach
CORRECT ANSWER: B. Liver
Rationale: The liver continuously produces bile, which is stored and concentrated in
the gallbladder and released into the duodenum to emulsify fats.
Question 14: In the process of protein synthesis, which molecule carries the
amino acids to the ribosome?
A. mRNA
B. tRNA
C. rRNA
D. DNA
CORRECT ANSWER: B. tRNA
Rationale: Transfer RNA (tRNA) transports specific amino acids to the ribosome,
where they are added to the growing polypeptide chain according to the mRNA
codon sequence.
Question 15: A medication is ordered at 4 mg/kg for a child weighing 20 kg.
Page 4 of 104
