, BSN HESI 266 Med Surg Exam Prep Document | 2026/2027
Edition | 250 Verified Questions
BSN HESI 266 Med Surg Exam 2026-2027 QUESTIONS AND ANSWERS ALREADY
GRADED A+. 100% Verified Solutions | Updated Per Latest Guidelines | Graded A+
This comprehensive exam preparation guide for BSN HESI 266 Medical-Surgical Nursing features 250
verified questions and answers, meticulously updated for the 2026/2027 academic year. Designed to
ensure a 100% pass rate, each question is aligned with current HESI exam blueprints and
evidence-based practice standards. The guide covers critical content areas including perioperative care,
fluid and electrolyte balance, cardiovascular disorders, respiratory management, and neurological
emergencies. Ideal for Nightingale College students, this resource provides rationales and distractors to
deepen clinical reasoning.
Key Features:
Perioperative Nursing Care
Fluid & Electrolyte Imbalances
Cardiovascular & Respiratory Disorders
Neurological & Endocrine Emergencies
Renal & Gastrointestinal Systems
Oncology & Hematology Management
Updates for 2026:
- Updated to reflect 2026/2027 HESI exam blueprint changes
- Incorporated latest evidence-based practice guidelines
- Revised rationales with expanded distractor explanations
- Added new questions on COVID-19 sequelae and telehealth nursing
- Enhanced focus on prioritization and delegation scenarios
Abstract:
This 2026/2027 edition of the BSN HESI 266 Medical-Surgical Exam Prep Guide provides 250 verified questions
and answers, meticulously curated to reflect the latest HESI exam content and nursing standards. Each question is
accompanied by a detailed rationale explaining the correct answer and analyzing common distractors, fostering
critical thinking and clinical judgment. The guide is organized by body system and nursing process, with emphasis
on high-yield topics such as fluid and electrolyte management, perioperative complications, cardiovascular
emergencies, and respiratory failure. Updated to include emerging issues like COVID-19 management and
telehealth nursing, this resource ensures comprehensive coverage of medical-surgical nursing. Designed for
Nightingale College students, it aligns with course objectives and NCLEX-RN competencies, offering a structured
approach to exam preparation. The answer format includes step-by-step reasoning, prioritization frameworks, and
evidence-based citations, enabling learners to apply knowledge in clinical scenarios. With a focus on safety and
patient-centered care, this guide serves as a definitive tool for achieving a top score on the HESI 266 exam.
Keywords:
HESI 266, Med Surg Exam, Nightingale College, Medical-Surgical Nursing, Verified Questions, 2026/2027
Update, NCLEX Prep, Clinical Reasoning
Answer Format:
Each question includes the correct answer, a detailed rationale explaining the underlying pathophysiology and
nursing interventions, and an analysis of common distractors. Rationales are structured to reinforce clinical
reasoning, with step-by-step explanations and evidence-based citations. This format helps students understand why
the correct answer is right and why others are wrong, promoting deep learning.
Page 1
,Compliance Checklist:
Aligned with 2026/2027 HESI exam blueprints
Based on latest evidence-based practice guidelines
Reviewed by subject matter experts for accuracy
Includes rationales and distractor analysis for each question
Covers all major medical-surgical nursing content areas
Designed to support 100% pass rate guarantee
Content Area Overview:
Content Area Questions Key Topics Weight
Perioperative Nursing 1-30 Preoperative assessment, intraoperative 12%
complications, postoperative care, pain
management, wound healing
Fluid & Electrolyte Balance 31-60 Dehydration, overhydration, sodium and 12%
potassium imbalances, acid-base disorders,
IV therapy
Cardiovascular Disorders 61-100 Heart failure, myocardial infarction, 16%
arrhythmias, hypertension, peripheral
vascular disease
Respiratory Disorders 101-135 COPD, pneumonia, asthma, pulmonary 14%
embolism, acute respiratory distress
syndrome
Neurological Emergencies 136-165 Stroke, traumatic brain injury, seizures, 12%
meningitis, increased intracranial pressure
Endocrine & Metabolic 166-190 Diabetes mellitus, thyroid disorders, adrenal 10%
insufficiency, electrolyte imbalances
Renal & Gastrointestinal 191-220 Acute kidney injury, chronic kidney disease, 12%
GI bleeding, pancreatitis, liver cirrhosis
Oncology & Hematology 221-250 Cancer treatments, chemotherapy side 12%
effects, anemia, coagulopathies, transfusion
reactions
Page 2
, Q1. A patient receiving furosemide for heart failure develops a serum potassium level of 3.2 mEq/L. The
nurse reviews the medication orders. Which order should the nurse question?
A. Digoxin 0.25 mg PO daily
B. Spironolactone 25 mg PO daily
C. Potassium chloride 20 mEq PO daily
D. Lisinopril 10 mg PO daily
Correct Answer: A. Digoxin 0.25 mg PO daily
Rationale: Hypokalemia increases the risk of digoxin toxicity because potassium competes with digoxin for binding
sites on the Na+/K+ ATPase pump. With low potassium, digoxin binds more readily, precipitating toxicity.
Spironolactone is potassium-sparing and appropriate. Potassium replacement and lisinopril are safe or beneficial.
Why Wrong:
B - Spironolactone is a potassium-sparing diuretic and would not exacerbate hypokalemia; it may even help
conserve potassium.
C - Potassium chloride is indicated to correct hypokalemia and is appropriate in this setting.
D - Lisinopril, an ACE inhibitor, can cause hyperkalemia but is not contraindicated with hypokalemia; it may
actually help prevent excessive potassium loss.
Reference: Lehne, R.A. (2026). Pharmacology for Nursing Care, 12th Ed., Ch. 24, 44.
Q2. A patient with chronic obstructive pulmonary disease (COPD) has an arterial blood gas (ABG) result:
pH 7.32, PaCO2 58 mm Hg, PaO2 70 mm Hg, HCO3- 30 mEq/L. The nurse interprets these findings as
which acid-base imbalance?
A. Metabolic acidosis with partial respiratory compensation
B. Respiratory acidosis with metabolic alkalosis
C. Respiratory acidosis with metabolic compensation
D. Metabolic alkalosis with respiratory compensation
Correct Answer: C. Respiratory acidosis with metabolic compensation
Rationale: The pH is acidic (7.32), PaCO2 is elevated (58 mm Hg) indicating respiratory acidosis. The HCO3- is
elevated (30 mEq/L) suggesting metabolic compensation (renal retention of bicarbonate) that has occurred over
days. This is a chronic respiratory acidosis with metabolic compensation, not a mixed disorder.
Why Wrong:
A - Metabolic acidosis would show low pH and low HCO3-, not elevated HCO3-. The primary disturbance is
respiratory, not metabolic.
B - Respiratory acidosis is present, but the elevated HCO3- is compensation, not a separate metabolic
alkalosis. In mixed disorders, the pH would be closer to normal or alkalotic.
D - Metabolic alkalosis would show elevated pH and HCO3-, not acidic pH. The primary disturbance is
respiratory acidosis.
Reference: Ignatavicius, D.D., Workman, M.L. (2026). Medical-Surgical Nursing: Concepts for Interprofessional
Collaborative Care, 10th Ed., Ch. 16.
Q3. A patient with acute pancreatitis develops severe abdominal pain, nausea, and vomiting. The nurse notes
a positive Cullen's sign and Grey Turner's sign. Which pathophysiological mechanism most likely explains
these findings?
A. Retroperitoneal hemorrhage tracking along fascial planes
B. Intra-abdominal infection causing peritonitis
C. Obstruction of the common bile duct by a gallstone
D. Release of pancreatic enzymes causing fat necrosis and saponification
Correct Answer: A. Retroperitoneal hemorrhage tracking along fascial planes
Rationale: Cullen's sign (periumbilical ecchymosis) and Grey Turner's sign (flank ecchymosis) indicate
retroperitoneal hemorrhage, often from severe necrotizing pancreatitis. Blood tracks from the retroperitoneum
Page 3
Edition | 250 Verified Questions
BSN HESI 266 Med Surg Exam 2026-2027 QUESTIONS AND ANSWERS ALREADY
GRADED A+. 100% Verified Solutions | Updated Per Latest Guidelines | Graded A+
This comprehensive exam preparation guide for BSN HESI 266 Medical-Surgical Nursing features 250
verified questions and answers, meticulously updated for the 2026/2027 academic year. Designed to
ensure a 100% pass rate, each question is aligned with current HESI exam blueprints and
evidence-based practice standards. The guide covers critical content areas including perioperative care,
fluid and electrolyte balance, cardiovascular disorders, respiratory management, and neurological
emergencies. Ideal for Nightingale College students, this resource provides rationales and distractors to
deepen clinical reasoning.
Key Features:
Perioperative Nursing Care
Fluid & Electrolyte Imbalances
Cardiovascular & Respiratory Disorders
Neurological & Endocrine Emergencies
Renal & Gastrointestinal Systems
Oncology & Hematology Management
Updates for 2026:
- Updated to reflect 2026/2027 HESI exam blueprint changes
- Incorporated latest evidence-based practice guidelines
- Revised rationales with expanded distractor explanations
- Added new questions on COVID-19 sequelae and telehealth nursing
- Enhanced focus on prioritization and delegation scenarios
Abstract:
This 2026/2027 edition of the BSN HESI 266 Medical-Surgical Exam Prep Guide provides 250 verified questions
and answers, meticulously curated to reflect the latest HESI exam content and nursing standards. Each question is
accompanied by a detailed rationale explaining the correct answer and analyzing common distractors, fostering
critical thinking and clinical judgment. The guide is organized by body system and nursing process, with emphasis
on high-yield topics such as fluid and electrolyte management, perioperative complications, cardiovascular
emergencies, and respiratory failure. Updated to include emerging issues like COVID-19 management and
telehealth nursing, this resource ensures comprehensive coverage of medical-surgical nursing. Designed for
Nightingale College students, it aligns with course objectives and NCLEX-RN competencies, offering a structured
approach to exam preparation. The answer format includes step-by-step reasoning, prioritization frameworks, and
evidence-based citations, enabling learners to apply knowledge in clinical scenarios. With a focus on safety and
patient-centered care, this guide serves as a definitive tool for achieving a top score on the HESI 266 exam.
Keywords:
HESI 266, Med Surg Exam, Nightingale College, Medical-Surgical Nursing, Verified Questions, 2026/2027
Update, NCLEX Prep, Clinical Reasoning
Answer Format:
Each question includes the correct answer, a detailed rationale explaining the underlying pathophysiology and
nursing interventions, and an analysis of common distractors. Rationales are structured to reinforce clinical
reasoning, with step-by-step explanations and evidence-based citations. This format helps students understand why
the correct answer is right and why others are wrong, promoting deep learning.
Page 1
,Compliance Checklist:
Aligned with 2026/2027 HESI exam blueprints
Based on latest evidence-based practice guidelines
Reviewed by subject matter experts for accuracy
Includes rationales and distractor analysis for each question
Covers all major medical-surgical nursing content areas
Designed to support 100% pass rate guarantee
Content Area Overview:
Content Area Questions Key Topics Weight
Perioperative Nursing 1-30 Preoperative assessment, intraoperative 12%
complications, postoperative care, pain
management, wound healing
Fluid & Electrolyte Balance 31-60 Dehydration, overhydration, sodium and 12%
potassium imbalances, acid-base disorders,
IV therapy
Cardiovascular Disorders 61-100 Heart failure, myocardial infarction, 16%
arrhythmias, hypertension, peripheral
vascular disease
Respiratory Disorders 101-135 COPD, pneumonia, asthma, pulmonary 14%
embolism, acute respiratory distress
syndrome
Neurological Emergencies 136-165 Stroke, traumatic brain injury, seizures, 12%
meningitis, increased intracranial pressure
Endocrine & Metabolic 166-190 Diabetes mellitus, thyroid disorders, adrenal 10%
insufficiency, electrolyte imbalances
Renal & Gastrointestinal 191-220 Acute kidney injury, chronic kidney disease, 12%
GI bleeding, pancreatitis, liver cirrhosis
Oncology & Hematology 221-250 Cancer treatments, chemotherapy side 12%
effects, anemia, coagulopathies, transfusion
reactions
Page 2
, Q1. A patient receiving furosemide for heart failure develops a serum potassium level of 3.2 mEq/L. The
nurse reviews the medication orders. Which order should the nurse question?
A. Digoxin 0.25 mg PO daily
B. Spironolactone 25 mg PO daily
C. Potassium chloride 20 mEq PO daily
D. Lisinopril 10 mg PO daily
Correct Answer: A. Digoxin 0.25 mg PO daily
Rationale: Hypokalemia increases the risk of digoxin toxicity because potassium competes with digoxin for binding
sites on the Na+/K+ ATPase pump. With low potassium, digoxin binds more readily, precipitating toxicity.
Spironolactone is potassium-sparing and appropriate. Potassium replacement and lisinopril are safe or beneficial.
Why Wrong:
B - Spironolactone is a potassium-sparing diuretic and would not exacerbate hypokalemia; it may even help
conserve potassium.
C - Potassium chloride is indicated to correct hypokalemia and is appropriate in this setting.
D - Lisinopril, an ACE inhibitor, can cause hyperkalemia but is not contraindicated with hypokalemia; it may
actually help prevent excessive potassium loss.
Reference: Lehne, R.A. (2026). Pharmacology for Nursing Care, 12th Ed., Ch. 24, 44.
Q2. A patient with chronic obstructive pulmonary disease (COPD) has an arterial blood gas (ABG) result:
pH 7.32, PaCO2 58 mm Hg, PaO2 70 mm Hg, HCO3- 30 mEq/L. The nurse interprets these findings as
which acid-base imbalance?
A. Metabolic acidosis with partial respiratory compensation
B. Respiratory acidosis with metabolic alkalosis
C. Respiratory acidosis with metabolic compensation
D. Metabolic alkalosis with respiratory compensation
Correct Answer: C. Respiratory acidosis with metabolic compensation
Rationale: The pH is acidic (7.32), PaCO2 is elevated (58 mm Hg) indicating respiratory acidosis. The HCO3- is
elevated (30 mEq/L) suggesting metabolic compensation (renal retention of bicarbonate) that has occurred over
days. This is a chronic respiratory acidosis with metabolic compensation, not a mixed disorder.
Why Wrong:
A - Metabolic acidosis would show low pH and low HCO3-, not elevated HCO3-. The primary disturbance is
respiratory, not metabolic.
B - Respiratory acidosis is present, but the elevated HCO3- is compensation, not a separate metabolic
alkalosis. In mixed disorders, the pH would be closer to normal or alkalotic.
D - Metabolic alkalosis would show elevated pH and HCO3-, not acidic pH. The primary disturbance is
respiratory acidosis.
Reference: Ignatavicius, D.D., Workman, M.L. (2026). Medical-Surgical Nursing: Concepts for Interprofessional
Collaborative Care, 10th Ed., Ch. 16.
Q3. A patient with acute pancreatitis develops severe abdominal pain, nausea, and vomiting. The nurse notes
a positive Cullen's sign and Grey Turner's sign. Which pathophysiological mechanism most likely explains
these findings?
A. Retroperitoneal hemorrhage tracking along fascial planes
B. Intra-abdominal infection causing peritonitis
C. Obstruction of the common bile duct by a gallstone
D. Release of pancreatic enzymes causing fat necrosis and saponification
Correct Answer: A. Retroperitoneal hemorrhage tracking along fascial planes
Rationale: Cullen's sign (periumbilical ecchymosis) and Grey Turner's sign (flank ecchymosis) indicate
retroperitoneal hemorrhage, often from severe necrotizing pancreatitis. Blood tracks from the retroperitoneum
Page 3
