NCLEX-RN: Health Alterations practice questions questions 201-225

Answer: C. H. pylori

Topic: Peptic Ulcer Disease Etiology

Helicobacter pylori (H. pylori) is a gram-negative bacterium that infects the stomach lining, causing chronic inflammation and weakening the protective mucosal barrier, which directly leads to the development of peptic ulcer disease.

Why the others are wrong

• A – Streptococcus causes infections like pharyngitis and cellulitis, not peptic ulcer disease.
• B – Clostridium difficile causes severe diarrhea and colitis, typically after antibiotic use.
• D – Haemophilus influenzae causes respiratory infections and meningitis, not peptic ulcer disease.

Remember: H. pylori hurts the stomach; C. diff causes diarrhea.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: D. Coronary Arteries

Topic: Coronary Circulation

Coronary arteries are the vessels that deliver oxygen‑rich blood directly to the myocardium, including the epicardial (outer) surface, ensuring perfusion of the heart muscle during both rest and activity.

Why the others are wrong

• A – Pulmonary veins return oxygenated blood from lungs to left atrium, not to heart muscle.
• B – The apex is the tip of the heart, not a blood vessel.
• C – The aorta carries blood away from the heart to systemic circulation, not to perfuse the heart muscle.

Remember: Coronary arteries feed the heart itself.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: B. Inhaled through a mask or endotracheal tube

Topic: General Anesthesia Administration

General anesthesia is routinely administered and maintained using volatile anesthetic gases delivered through a face mask or an endotracheal tube. This allows rapid alveolar absorption, precise control over anesthetic depth, and continuous airway protection during surgical procedures.

Why the others are wrong

• A – Topical application numbs only superficial tissues and does not produce systemic general anesthesia.
• C – Intramuscular injection has erratic absorption and is not used to administer general anesthesia.
• D – While intravenous agents induce anesthesia, inhalation remains the definitive method for volatile anesthetic delivery.

Remember: General anesthesia uses the airway: inhaled gases through masks or endotracheal tubes.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: D. Keeping the client conscious and responsive

Topic: Moderate Sedation Goals

Moderate sedation is intended to depress consciousness enough to relieve anxiety and discomfort while preserving the patient's ability to maintain airway reflexes, respond to verbal commands, and cooperate during the procedure.

Why the others are wrong

• A – Inducing unconsciousness exceeds moderate sedation and risks airway loss.
• B – Preventing all sensations requires deep anesthesia, not moderate sedation.
• C – Deep relaxation alone does not ensure analgesia or airway protection.

Remember: Sedation: patient awake, comfortable, still follows commands.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: D. White Blood Cells

Leukopenia denotes a low white blood cell count, reflecting reduced leukocyte production or increased destruction, leading to heightened infection risk. It specifically involves neutrophils, lymphocytes, monocytes, eosinophils, or basophils, and is identified via a complete blood count.

Why the others are wrong

• A – Plasma volume changes affect hemodynamics, not white cell numbers.
• B – Red blood cells are decreased in anemia, not leukopenia.
• C – Platelets relate to thrombocytopenia, not to leukocyte deficiency.

Remember: Leuko = white; leukopenia = low white cells.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: C. Consult with their medical physician and anesthesia provider

Topic: Perioperative Medication Management

Patients must discuss all regular medications with their physician and anesthesia team before surgery to determine which drugs should be continued, held, or adjusted, preventing interactions and ensuring safe perioperative care.

Why the others are wrong

• A – Stopping all meds can cause withdrawal or uncontrolled conditions.
• B – Changing doses without guidance risks toxicity or inadequate therapy.
• D – Continuing meds unchanged may include drugs contraindicated for anesthesia.

Remember: Talk meds with surgeon and anesthetist before any operation.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: D. Demyelination of the axons of neurons

Topic: Multiple Sclerosis Pathophysiology

Multiple sclerosis is an autoimmune disease that targets oligodendrocytes, causing demyelination of central nervous system axons and resulting in impaired nerve conduction and neurologic deficits.

Why the others are wrong

• A – Electrical activity abnormalities describe seizures, not demyelination.
• B – Cerebral artery occlusion causes stroke, unrelated to MS pathology.
• C – Dopamine deficiency characterizes Parkinson disease, not MS.

Remember: MS = Myelin Stripping.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: B. Obesity

Topic: Type 2 Diabetes Risk

Obesity is the most significant modifiable risk factor for type 2 diabetes; a BMI of 32 kg/m² indicates obesity, and weight reduction markedly lowers future diabetes risk.

Why the others are wrong

• A – Genetics cannot be changed; education focuses on modifiable factors.
• C – Ethnicity influences risk but is non‑modifiable and lower priority.
• D – Hypertension is a risk but less directly linked than excess weight.

Remember: Weight loss cuts diabetes risk more than any other change.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: B. Decreased Hemoglobin (Hgb) level

Topic: Anemia and Respiratory Impact

A decreased hemoglobin level directly reflects reduced oxygen‑carrying capacity, the hallmark of anemia, which can lead to tissue hypoxia and increased work of breathing.

Why the others are wrong

• A – Elevated hematocrit reflects polycythemia, opposite of anemia.
• C – High platelet count indicates thrombocytosis, unrelated to oxygen transport.
• D – Elevated WBC suggests infection, not anemia.

Remember: Low Hgb = less O₂, shortness of breath.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: A. EKG

Topic: Electrocardiogram Interpretation

An electrocardiogram records the heart’s electrical activity, producing waveforms (P, QRS, T) that correspond to specific phases of the cardiac cycle, allowing clinicians to assess rhythm, conduction, and myocardial health.

Why the others are wrong

• B – Endoscopy visualizes the gastrointestinal tract, unrelated to heart cycles.
• C – Echocardiogram uses ultrasound imaging, not electrical waveforms.
• D – EEG measures brain electrical activity, not cardiac events.

Remember: EKG = heart’s electrical wave picture.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: D. Urinary obstruction

Topic: Pyelonephritis Risk Factors

Urinary obstruction impedes normal urine flow, allowing bacteria to ascend and proliferate in the renal pelvis, which is the primary mechanism that precipitates pyelonephritis and causes infection.

Why the others are wrong

• A – High creatinine level is a result, not a cause, of kidney dysfunction.
• B – A recent viral infection does not typically introduce bacteria into the urinary tract.
• C – Elevated BUN reflects impaired filtration but does not initiate infection.

Remember: Blocked urine flow lets germs climb to kidneys.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: D. Palliative Care

Topic: Palliative Care in Oncology

Palliative care focuses on symptom management, pain control, and quality‑of‑life improvement for patients with serious illnesses such as lung cancer, regardless of disease stage, delivered through an interdisciplinary team.

Why the others are wrong

• A – Preventative care aims to avoid disease, not to relieve existing cancer symptoms.
• B – Terminal Illness counseling focuses on emotional support, not comprehensive symptom and pain management.
• C – Spiritual advising addresses beliefs, but does not provide medical symptom control.

Remember: Palliative care = symptom relief, pain control, quality of life.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: B. To review the patient's identity, the procedure, and the surgical site.

Topic: Surgical Time-Out Protocol

The Joint Commission Universal Protocol mandates a surgical time-out immediately before starting a procedure. The surgical team actively confirms the correct patient identity, the correct procedure, and the correct surgical site to prevent wrong-site, wrong-procedure events.

Why the others are wrong

• A – Vital sign monitoring is continuous throughout perioperative care, not the purpose of a time-out.
• C – Research discussions occur during academic conferences or planning meetings, not immediately before surgical incision.
• D – Equipment readiness is verified during pre-procedure setup rather than during the safety time-out.

Remember: Time-out ensures: right patient, right procedure, right site.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: D. Calcitonin

Topic: Thyroid Hormones

Calcitonin is secreted by the thyroid’s parafollicular C cells and functions to lower serum calcium levels, making it the hormone directly associated with the thyroid gland among the choices.

Why the others are wrong

• A – Glycogen is a stored carbohydrate, not a hormone.
• B – Cortisone is a glucocorticoid from adrenal cortex, unrelated to thyroid.
• C – Insulin is produced by the pancreas, not the thyroid.

Remember: Calcitonin = calcium‑lowering thyroid hormone.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: D. Encourage coughing and deep breathing exercises

Topic: Postoperative Pulmonary Care

Coughing and deep breathing exercises mobilize secretions, maintain alveolar inflation, and improve ventilation, thereby preventing atelectasis and bacterial colonization that lead to postoperative pneumonia in surgical patients.

Why the others are wrong

• A – Frequent vital signs detect early changes but do not actively keep airways clear.
• B – Bedrest reduces lung expansion, promoting atelectasis and increasing pneumonia risk.
• C – Antibiotics treat infection after it occurs; they do not prevent airway collapse or secretion retention.

Remember: Deep breaths and coughs keep lungs open, preventing pneumonia.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: C. Intravenous iron therapy

Topic: Iron-Deficiency Anemia Treatment

Severe iron‑deficiency anemia often requires rapid repletion; intravenous iron bypasses gastrointestinal absorption limits and provides higher, faster serum iron levels, making it the preferred route in severe cases.

Why the others are wrong

• A – Intramuscular iron is rarely used and has poor absorption.
• B – Oral iron is inadequate for rapid correction in severe anemia.
• D – Subcutaneous iron is not a standard formulation for anemia.

Remember: IV iron = fast fix for severe anemia.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: A. Less than 4,000/µL

Topic: Leukopenia Threshold

Leukopenia is defined as a white blood cell count below the lower limit of normal, typically <4,000 cells per microliter, indicating increased infection risk in the patient.

Why the others are wrong

• B – That's the level for severe neutropenia, not general leukopenia.
• C – That's a moderate neutropenia threshold, still above the leukopenia cut‑off.
• D – That's a neutropenia cutoff, not the broader leukopenia definition.

Remember: Leukopenia = WBC under 4,000 per microliter.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: A. Calcium and oxalate

Topic: Kidney Stone Types

Calcium oxalate stones account for about 70‑80% of all renal calculi; they form when urinary calcium combines with oxalate, especially in low‑volume, acidic urine, making them the most prevalent stone type.

Why the others are wrong

• B – Cholesterol does not form renal calculi.
• C – Calcium phosphate stones are less common than calcium oxalate.
• D – Uric acid stones are less frequent and occur in acidic urine.

Remember: Calcium + oxalate = most stones

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: A. Hyperosmolar Hyperglycemic State (HHS)

Topic: Hyperosmolar Hyperglycemic State

Hyperosmolar Hyperglycemic State commonly occurs in middle‑aged or older adults with type 2 diabetes; it presents with marked polyuria, polydipsia, blurred vision and markedly elevated glucose, often without ketones, matching the vignette.

Why the others are wrong

• B – Diabetic retinopathy is a chronic ocular complication, not an acute metabolic emergency.
• C – Hypoglycemia presents with low glucose and symptoms like sweating, tremor, not thirst.
• D – DKA includes nausea, abdominal pain, ketonemia and acidosis, which are absent here.

Remember: HHS: high sugar, high osmolarity, older adult, no ketones.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: D. To increase blood pressure

Topic: Renin-Angiotensin System

Angiotensin II is a potent vasoconstrictor that raises systemic vascular resistance and stimulates aldosterone secretion, leading to sodium and water retention, which together increase arterial blood pressure.

Why the others are wrong

• A – Body temperature regulation is controlled by hypothalamic mechanisms, not Angiotensin II.
• B – Heart rate is primarily modulated by autonomic nerves, not Angiotensin II.
• C – Angiotensin II does not lower blood pressure; it raises it.

Remember: Angiotensin II = vasoconstrictor, raises blood pressure.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: A. Escalating up the chain of command

Topic: Conflict Resolution Strategies

When healthcare professionals cannot resolve a conflict regarding patient care, elevating the issue to department heads represents escalating up the chain of command to ensure patient safety and obtain administrative resolution.

Why the others are wrong

• B – Collaborative problem-solving involves working together to find a mutual solution, which failed here.
• C – Mediation involves a neutral third party facilitating agreement, rather than formal administrative escalation.
• D – Assertive communication involves expressing needs directly, not elevating the issue to superiors.

Remember: When conflict stalls, climb the chain of command for resolution.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: C. Registered nurse (RN)

Conscious sedation is usually administered by a registered nurse who has received specific training and works under a physician’s order or protocol, ensuring safe monitoring of the patient’s airway, breathing, and circulation.

Why the others are wrong

• A – Anesthesiologists give deeper anesthesia, not routine conscious sedation administered by RN.
• B – EMTs provide prehospital care; they are not authorized to give conscious sedation.
• D – Surgeons may order sedation but do not typically administer it themselves.

Remember: RNs: the hands‑on team for safe conscious sedation.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: B. Acts as a lubricant to reduce friction during breathing

Topic: Respiratory Physiology

Pleural fluid is a thin serous secretion that occupies the pleural space, lubricating the visceral and parietal pleura so the lungs can expand and recoil smoothly during each breath, minimizing friction.

Why the others are wrong

• A – Pleural fluid does not participate in gas exchange; alveoli handle oxygen diffusion.
• C – Nutrients are not absorbed in the respiratory tract; pleural fluid has no absorptive role.
• D – Blood pressure regulation is controlled by pulmonary vasculature, not pleural fluid.

Remember: Pleural fluid = lung lubricant for friction‑free breathing.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: B. Deep vein thrombosis

Topic: Venous Thromboembolism

Virchow's triad—venous stasis, hypercoagulability, and endothelial injury—creates conditions that promote clot formation within deep veins, making deep vein thrombosis the classic manifestation of these three pathophysiologic factors.

Why the others are wrong

• A – Peripheral venous insufficiency results from valve failure, not from clot formation described by Virchow's triad.
• C – Varicose veins are caused by venous valve incompetence and wall weakness, not the triad.
• D – Arteriosclerosis involves arterial wall thickening and plaque, unrelated to venous stasis or hypercoagulability.

Remember: Virchow's triad = clot in deep veins.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.

Answer: B. Bladder distention

Topic: Postoperative Urinary Retention

Postoperative urinary retention presents with a palpable, visibly enlarged bladder due to incomplete emptying; bladder distention is the key clinical sign indicating this complication.

Why the others are wrong

• A – Frequent voiding indicates adequate emptying, not retention.
• C – Foul odor points to infection, not retention.
• D – Burning suggests infection, not mechanical retention.

Remember: Distended bladder = retention after surgery.

Question adapted from Health Alterations, by Open Resources for Nursing (Open RN); K. Ernstmeyer and E. Christman, editors (WisTech Open), licensed CC BY 4.0; wording and option order may differ from the book. The explanation is ours, checked against the book's answer.