NLN NEX EXAM 300 ACTUAL QUESTIONS AND ANSWERS | VERIFIED AND WELL DETAILED
ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM UPDATE
Core Domains:
Foundational Nursing Concepts & Theory
Medical-Surgical Nursing
Maternal-Newborn Nursing
Pediatric Nursing
Psychiatric-Mental Health Nursing
Pharmacology & Medication Administration
Legal, Ethical, and Regulatory Standards
Leadership, Management, and Delegation
Health Promotion and Disease Prevention
Critical Thinking and Clinical Decision-Making
Introduction
This comprehensive examination is designed to rigorously assess the knowledge, critical thinking, and
clinical judgment essential for success in the nursing profession and on the NLN NEX examination. The
test evaluates a candidate's understanding of foundational nursing theory, its practical application in
diverse healthcare settings, and the ability to navigate complex patient care scenarios. Questions are
presented in a multiple-choice format, emphasizing real-world application, decision-making, and
prioritization. This assessment covers a wide spectrum of domains, from medical-surgical and maternal-
newborn care to psychiatric nursing, pharmacology, and professional ethics. Each question is
accompanied by a detailed rationale to reinforce learning and clarify the reasoning behind the correct
answer.
SECTION ONE: QUESTIONS 1 – 100
1. A nurse is caring for a patient who is postoperative day one following an abdominal
hysterectomy. Which assessment finding is the most indicative of a potential postoperative
complication?
A. Serosanguineous drainage on the surgical dressing
B. Complaints of incisional pain rated as 4 on a 1-10 scale
,C. Temperature of 38.0°C (100.4°F) and chills
D. Diminished bowel sounds in all four quadrants
🟢C
🔴 Explanation: A temperature of 38.0°C (100.4°F) accompanied by chills in the immediate
postoperative period is a classic sign of a potential infection, such as a surgical site infection, urinary
tract infection, or pneumonia. While some pain and serosanguineous drainage are expected findings,
fever and chills suggest a systemic response to an infection. Diminished bowel sounds are also
expected initially after abdominal surgery due to ileus.
2. A nurse is preparing to administer an enteral feeding via a nasogastric (NG) tube. Which action
should the nurse perform first to ensure patient safety?
A. Verify the placement of the NG tube.
B. Measure the residual gastric volume.
C. Flush the tube with 30 mL of sterile water.
D. Assess the patient's bowel sounds.
🟢A
🔴 Explanation: The first and most critical action before administering any enteral feeding is to verify
the correct placement of the NG tube. This is typically done by obtaining an abdominal x-ray, or by
checking the pH of the aspirate and observing the characteristics of the fluid. Administering a feeding
into a misplaced tube (e.g., in the lungs) can be fatal, making this the priority step.
3. A patient with a history of chronic obstructive pulmonary disease (COPD) is receiving oxygen at 2
L/min via nasal cannula. The patient's oxygen saturation is 88%. What is the nurse's priority action?
A. Increase the oxygen flow rate to 4 L/min.
B. Assess the patient's level of consciousness.
C. Encourage the patient to cough and deep breathe.
D. Notify the healthcare provider immediately.
🟢B
🔴 Explanation: In patients with COPD who are chronic carbon dioxide (CO2) retainers, the hypoxic
drive is often the primary stimulus to breathe. While the patient is hypoxic (SpO2 of 88%), the nurse's
priority is to first assess the patient's level of consciousness and respiratory effort. Rapidly increasing
oxygen can lead to respiratory depression and apnea. A full assessment, including level of
consciousness and arterial blood gases, must be performed before altering the oxygen therapy.
,4. A client is prescribed digoxin for the management of heart failure. Which finding would indicate
a potential adverse effect requiring immediate action?
A. Visual disturbances such as halos around lights.
B. Heart rate of 64 beats per minute and regular.
C. Blood pressure of 120/78 mmHg.
D. Complaints of mild nausea after breakfast.
🟢A
🔴 Explanation: Visual disturbances, such as seeing halos, light flashes, or yellow-green vision, are a
hallmark sign of digoxin toxicity, a potentially life-threatening condition. While nausea can also be a
sign of toxicity, visual changes are more specific and require immediate assessment and intervention,
including a serum digoxin level and an ECG. The other options represent normal or expected findings.
5. A nurse is providing discharge teaching to a patient with a new diagnosis of diabetes mellitus.
Which statement by the patient indicates a correct understanding of managing hypoglycemia?
A. "I will drink a glass of orange juice if my blood sugar is low."
B. "I should take an extra dose of my insulin if I feel shaky."
C. "I will eat a large meal as soon as I feel my blood sugar dropping."
D. "I should avoid exercise for the next few weeks."
🟢A
🔴 Explanation: The "Rule of 15" for treating hypoglycemia is to consume 15 grams of fast-acting
carbohydrate, such as 4 ounces (1/2 cup) of fruit juice or regular soda, or 3-4 glucose tablets. Orange
juice is an appropriate choice. Taking extra insulin would exacerbate hypoglycemia, and eating a large
meal could lead to hyperglycemia later. Exercise is not contraindicated but should be managed
carefully to prevent hypoglycemia.
6. A nurse is caring for a patient on a medical-surgical unit who is exhibiting signs of increased
intracranial pressure (ICP). Which intervention should the nurse implement first?
A. Administer mannitol as prescribed.
B. Elevate the head of the bed to 30 degrees.
C. Prepare the patient for a CT scan of the head.
D. Notify the healthcare provider.
🟢B
🔴 Explanation: The first and most immediate nursing intervention for suspected increased ICP is to
elevate the head of the bed to 30 degrees. This position facilitates venous drainage from the head,
, which can help reduce cerebral edema and ICP. While the other actions may also be appropriate,
elevating the head of the bed is a priority, immediate, independent nursing intervention.
7. A nurse is reviewing the laboratory results of a patient who is receiving IV heparin. Which finding
is the most concerning?
A. Activated partial thromboplastin time (aPTT) of 60 seconds.
B. Platelet count of 90,000/mm³.
C. Hemoglobin level of 12 g/dL.
D. Prothrombin time (PT) of 12 seconds.
🟢B
🔴 Explanation: A platelet count of 90,000/mm³ is a significant finding in a patient receiving IV heparin
and is highly suggestive of Heparin-Induced Thrombocytopenia (HIT). HIT is a serious immune-
mediated reaction where antibodies activate platelets, leading to a paradoxical risk of thrombosis.
Immediate discontinuation of the heparin and notification of the provider is required. An elevated
aPTT is the therapeutic goal for heparin therapy.
8. A nurse is preparing to administer a blood transfusion to a patient. The patient begins to exhibit
symptoms of a transfusion reaction. What is the nurse's priority action?
A. Stop the transfusion immediately.
B. Administer the prescribed antihistamine.
C. Assess the patient's vital signs.
D. Notify the healthcare provider.
🟢A
🔴 Explanation: The priority action when a patient exhibits any signs of a possible transfusion reaction
is to STOP the blood transfusion immediately. This is a safety measure to prevent further infusion of
the potentially incompatible blood. After stopping the transfusion, the nurse should then maintain the
IV line with normal saline, assess the patient, and notify the provider.
9. A client with a history of major depressive disorder is started on a new medication. The nurse
reviews the medication's mechanism of action. Which statement describes a selective serotonin
reuptake inhibitor (SSRI)?
A. It blocks the reuptake of dopamine and norepinephrine.
B. It inhibits the reuptake of serotonin, increasing its availability in the synaptic cleft.
C. It blocks the enzyme monoamine oxidase (MAO), preventing the breakdown of neurotransmitters.
D. It acts as a serotonin and norepinephrine reuptake inhibitor.
ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM UPDATE
Core Domains:
Foundational Nursing Concepts & Theory
Medical-Surgical Nursing
Maternal-Newborn Nursing
Pediatric Nursing
Psychiatric-Mental Health Nursing
Pharmacology & Medication Administration
Legal, Ethical, and Regulatory Standards
Leadership, Management, and Delegation
Health Promotion and Disease Prevention
Critical Thinking and Clinical Decision-Making
Introduction
This comprehensive examination is designed to rigorously assess the knowledge, critical thinking, and
clinical judgment essential for success in the nursing profession and on the NLN NEX examination. The
test evaluates a candidate's understanding of foundational nursing theory, its practical application in
diverse healthcare settings, and the ability to navigate complex patient care scenarios. Questions are
presented in a multiple-choice format, emphasizing real-world application, decision-making, and
prioritization. This assessment covers a wide spectrum of domains, from medical-surgical and maternal-
newborn care to psychiatric nursing, pharmacology, and professional ethics. Each question is
accompanied by a detailed rationale to reinforce learning and clarify the reasoning behind the correct
answer.
SECTION ONE: QUESTIONS 1 – 100
1. A nurse is caring for a patient who is postoperative day one following an abdominal
hysterectomy. Which assessment finding is the most indicative of a potential postoperative
complication?
A. Serosanguineous drainage on the surgical dressing
B. Complaints of incisional pain rated as 4 on a 1-10 scale
,C. Temperature of 38.0°C (100.4°F) and chills
D. Diminished bowel sounds in all four quadrants
🟢C
🔴 Explanation: A temperature of 38.0°C (100.4°F) accompanied by chills in the immediate
postoperative period is a classic sign of a potential infection, such as a surgical site infection, urinary
tract infection, or pneumonia. While some pain and serosanguineous drainage are expected findings,
fever and chills suggest a systemic response to an infection. Diminished bowel sounds are also
expected initially after abdominal surgery due to ileus.
2. A nurse is preparing to administer an enteral feeding via a nasogastric (NG) tube. Which action
should the nurse perform first to ensure patient safety?
A. Verify the placement of the NG tube.
B. Measure the residual gastric volume.
C. Flush the tube with 30 mL of sterile water.
D. Assess the patient's bowel sounds.
🟢A
🔴 Explanation: The first and most critical action before administering any enteral feeding is to verify
the correct placement of the NG tube. This is typically done by obtaining an abdominal x-ray, or by
checking the pH of the aspirate and observing the characteristics of the fluid. Administering a feeding
into a misplaced tube (e.g., in the lungs) can be fatal, making this the priority step.
3. A patient with a history of chronic obstructive pulmonary disease (COPD) is receiving oxygen at 2
L/min via nasal cannula. The patient's oxygen saturation is 88%. What is the nurse's priority action?
A. Increase the oxygen flow rate to 4 L/min.
B. Assess the patient's level of consciousness.
C. Encourage the patient to cough and deep breathe.
D. Notify the healthcare provider immediately.
🟢B
🔴 Explanation: In patients with COPD who are chronic carbon dioxide (CO2) retainers, the hypoxic
drive is often the primary stimulus to breathe. While the patient is hypoxic (SpO2 of 88%), the nurse's
priority is to first assess the patient's level of consciousness and respiratory effort. Rapidly increasing
oxygen can lead to respiratory depression and apnea. A full assessment, including level of
consciousness and arterial blood gases, must be performed before altering the oxygen therapy.
,4. A client is prescribed digoxin for the management of heart failure. Which finding would indicate
a potential adverse effect requiring immediate action?
A. Visual disturbances such as halos around lights.
B. Heart rate of 64 beats per minute and regular.
C. Blood pressure of 120/78 mmHg.
D. Complaints of mild nausea after breakfast.
🟢A
🔴 Explanation: Visual disturbances, such as seeing halos, light flashes, or yellow-green vision, are a
hallmark sign of digoxin toxicity, a potentially life-threatening condition. While nausea can also be a
sign of toxicity, visual changes are more specific and require immediate assessment and intervention,
including a serum digoxin level and an ECG. The other options represent normal or expected findings.
5. A nurse is providing discharge teaching to a patient with a new diagnosis of diabetes mellitus.
Which statement by the patient indicates a correct understanding of managing hypoglycemia?
A. "I will drink a glass of orange juice if my blood sugar is low."
B. "I should take an extra dose of my insulin if I feel shaky."
C. "I will eat a large meal as soon as I feel my blood sugar dropping."
D. "I should avoid exercise for the next few weeks."
🟢A
🔴 Explanation: The "Rule of 15" for treating hypoglycemia is to consume 15 grams of fast-acting
carbohydrate, such as 4 ounces (1/2 cup) of fruit juice or regular soda, or 3-4 glucose tablets. Orange
juice is an appropriate choice. Taking extra insulin would exacerbate hypoglycemia, and eating a large
meal could lead to hyperglycemia later. Exercise is not contraindicated but should be managed
carefully to prevent hypoglycemia.
6. A nurse is caring for a patient on a medical-surgical unit who is exhibiting signs of increased
intracranial pressure (ICP). Which intervention should the nurse implement first?
A. Administer mannitol as prescribed.
B. Elevate the head of the bed to 30 degrees.
C. Prepare the patient for a CT scan of the head.
D. Notify the healthcare provider.
🟢B
🔴 Explanation: The first and most immediate nursing intervention for suspected increased ICP is to
elevate the head of the bed to 30 degrees. This position facilitates venous drainage from the head,
, which can help reduce cerebral edema and ICP. While the other actions may also be appropriate,
elevating the head of the bed is a priority, immediate, independent nursing intervention.
7. A nurse is reviewing the laboratory results of a patient who is receiving IV heparin. Which finding
is the most concerning?
A. Activated partial thromboplastin time (aPTT) of 60 seconds.
B. Platelet count of 90,000/mm³.
C. Hemoglobin level of 12 g/dL.
D. Prothrombin time (PT) of 12 seconds.
🟢B
🔴 Explanation: A platelet count of 90,000/mm³ is a significant finding in a patient receiving IV heparin
and is highly suggestive of Heparin-Induced Thrombocytopenia (HIT). HIT is a serious immune-
mediated reaction where antibodies activate platelets, leading to a paradoxical risk of thrombosis.
Immediate discontinuation of the heparin and notification of the provider is required. An elevated
aPTT is the therapeutic goal for heparin therapy.
8. A nurse is preparing to administer a blood transfusion to a patient. The patient begins to exhibit
symptoms of a transfusion reaction. What is the nurse's priority action?
A. Stop the transfusion immediately.
B. Administer the prescribed antihistamine.
C. Assess the patient's vital signs.
D. Notify the healthcare provider.
🟢A
🔴 Explanation: The priority action when a patient exhibits any signs of a possible transfusion reaction
is to STOP the blood transfusion immediately. This is a safety measure to prevent further infusion of
the potentially incompatible blood. After stopping the transfusion, the nurse should then maintain the
IV line with normal saline, assess the patient, and notify the provider.
9. A client with a history of major depressive disorder is started on a new medication. The nurse
reviews the medication's mechanism of action. Which statement describes a selective serotonin
reuptake inhibitor (SSRI)?
A. It blocks the reuptake of dopamine and norepinephrine.
B. It inhibits the reuptake of serotonin, increasing its availability in the synaptic cleft.
C. It blocks the enzyme monoamine oxidase (MAO), preventing the breakdown of neurotransmitters.
D. It acts as a serotonin and norepinephrine reuptake inhibitor.
