WGU D115 OA ( AXC2 ) LATEST ACTUAL EXAM - 170
Questions and Answers Already Graded A+ Premium Exam
Tested And Verified
Subject Area Advanced Nursing Practice: Pathophysiology, Pharmacology, and Clinical
Decision-Making
Description This exam assesses mastery of complex pathophysiological processes, advanced
pharmacotherapeutics, and evidence-based clinical reasoning for managing acute
and chronic conditions in adult populations. It integrates nursing, medical, and
pharmacological knowledge at a level consistent with top-tier US nursing
programs.
Expected Grade A+
Total Questions 170
Duration 3 hours
Learning Outcomes 1. Analyze pathophysiological mechanisms underlying multisystem disorders
2. Synthesize clinical data to formulate differential diagnoses and treatment plans
3. Evaluate pharmacotherapeutic regimens for safety, efficacy, and
patient-specific factors
4. Apply current evidence-based guidelines to complex clinical scenarios
Accreditation This exam adheres to the rigorous standards of the Commission on Collegiate
Nursing Education (CCNE) and reflects competencies expected of graduate-level
advanced practice nurses.
Page 1
,ati. WGU D115 OA ( AXC2 ) LATEST ACTUAL EXAM - 170 Questions and Answers
Already Graded A+ Premium Exam Tested And Verified
Question: 1 of 170
A patient with a history of chronic heart failure (NYHA class III) and atrial fibrillation is
admitted with acute dyspnea and hypoxia. Current medications include carvedilol,
lisinopril, furosemide, and warfarin. The electrocardiogram reveals atrial fibrillation
with a ventricular rate of 140 bpm. Which of the following interventions is most
Administer intravenous metoprolol tartrate 5 mg over 5 minutes, repeated every 5 minutes up to
15 mg
Administer intravenous digoxin 0.5 mg loading dose, followed by 0.25 mg every 6 hours for 24
hours
Administer intravenous amiodarone 150 mg over 10 minutes, followed by a continuous infusion
Administer intravenous diltiazem 0.25 mg/kg over 2 minutes, followed by a continuous infusion
PREVIOUS
Question: 2 of 170
A researcher is studying the effect of a novel drug that inhibits the Na+/K+-ATPase
pump in cardiac myocytes. Which of the following changes in intracellular ion
concentrations and subsequent cellular effects is most likely to result from this
inhibition?
Increased intracellular Na+ leading to increased Ca2+ efflux via the Na+/Ca2+ exchanger,
causing negative inotropy
Increased intracellular Na+ leading to decreased Ca2+ efflux via the Na+/Ca2+ exchanger,
causing positive inotropy
Decreased intracellular Na+ leading to increased Ca2+ influx via the Na+/Ca2+ exchanger,
causing positive inotropy
Increased intracellular K+ leading to membrane hyperpolarization and decreased contractility
PREVIOUS
Page 2
,ati. WGU D115 OA ( AXC2 ) LATEST ACTUAL EXAM - 170 Questions and Answers
Already Graded A+ Premium Exam Tested And Verified
Question: 3 of 170
A 65-year-old patient with hypertension and type 2 diabetes mellitus is initiated on
hydrochlorothiazide 25 mg daily. Three months later, laboratory results show: serum
sodium 138 mEq/L, potassium 3.2 mEq/L, chloride 100 mEq/L, bicarbonate 30 mEq/L,
blood urea nitrogen 22 mg/dL, creatinine 1.1 mg/dL, and fasting glucose 140 mg/dL.
Thiazide-induced metabolic acidosis due to decreased renal excretion of hydrogen ions
Thiazide-induced hypokalemia leading to metabolic alkalosis via increased renal ammonia
production
Thiazide-induced hyperglycemia due to decreased insulin secretion from pancreatic beta cells
Thiazide-induced hyponatremia due to impaired urinary dilution
PREVIOUS
Question: 4 of 170
A patient with a history of recurrent urinary tract infections is prescribed
trimethoprim-sulfamethoxazole (TMP-SMX). The patient also takes warfarin for atrial
fibrillation. Which of the following best describes the potential drug interaction and its
mechanism?
TMP-SMX increases warfarin metabolism via CYP2C9 induction, reducing anticoagulant effect
TMP-SMX displaces warfarin from albumin binding sites, leading to increased free warfarin and
risk of bleeding
TMP-SMX inhibits warfarin metabolism via CYP2C9 inhibition, potentiating anticoagulant effect
TMP-SMX decreases gastrointestinal absorption of warfarin, reducing its efficacy
PREVIOUS
Page 3
, ati. WGU D115 OA ( AXC2 ) LATEST ACTUAL EXAM - 170 Questions and Answers
Already Graded A+ Premium Exam Tested And Verified
Question: 5 of 170
A previously healthy adult presents with acute onset of severe right lower quadrant
abdominal pain, nausea, and low-grade fever. Laboratory studies show leukocytosis
with left shift. Computed tomography reveals a dilated appendix with wall thickening
and periappendiceal fat stranding. The patient is taken for laparoscopic
Ischemic necrosis of the appendix due to thrombosis of the appendicular artery
Obstruction of the appendiceal lumen by a fecalith, leading to increased intraluminal pressure
and bacterial overgrowth
Direct bacterial invasion of the appendiceal wall from the cecal lumen
Inflammatory bowel disease causing transmural inflammation of the appendix
PREVIOUS
Question: 6 of 170
A patient with end-stage renal disease on hemodialysis develops hyperphosphatemia.
Which of the following combinations of medications is most appropriate to manage
this condition while minimizing the risk of vascular calcification?
Calcium carbonate and calcitriol
Sevelamer carbonate and cinacalcet
Aluminum hydroxide and vitamin D
Lanthanum carbonate and paricalcitol
PREVIOUS
Page 4
Questions and Answers Already Graded A+ Premium Exam
Tested And Verified
Subject Area Advanced Nursing Practice: Pathophysiology, Pharmacology, and Clinical
Decision-Making
Description This exam assesses mastery of complex pathophysiological processes, advanced
pharmacotherapeutics, and evidence-based clinical reasoning for managing acute
and chronic conditions in adult populations. It integrates nursing, medical, and
pharmacological knowledge at a level consistent with top-tier US nursing
programs.
Expected Grade A+
Total Questions 170
Duration 3 hours
Learning Outcomes 1. Analyze pathophysiological mechanisms underlying multisystem disorders
2. Synthesize clinical data to formulate differential diagnoses and treatment plans
3. Evaluate pharmacotherapeutic regimens for safety, efficacy, and
patient-specific factors
4. Apply current evidence-based guidelines to complex clinical scenarios
Accreditation This exam adheres to the rigorous standards of the Commission on Collegiate
Nursing Education (CCNE) and reflects competencies expected of graduate-level
advanced practice nurses.
Page 1
,ati. WGU D115 OA ( AXC2 ) LATEST ACTUAL EXAM - 170 Questions and Answers
Already Graded A+ Premium Exam Tested And Verified
Question: 1 of 170
A patient with a history of chronic heart failure (NYHA class III) and atrial fibrillation is
admitted with acute dyspnea and hypoxia. Current medications include carvedilol,
lisinopril, furosemide, and warfarin. The electrocardiogram reveals atrial fibrillation
with a ventricular rate of 140 bpm. Which of the following interventions is most
Administer intravenous metoprolol tartrate 5 mg over 5 minutes, repeated every 5 minutes up to
15 mg
Administer intravenous digoxin 0.5 mg loading dose, followed by 0.25 mg every 6 hours for 24
hours
Administer intravenous amiodarone 150 mg over 10 minutes, followed by a continuous infusion
Administer intravenous diltiazem 0.25 mg/kg over 2 minutes, followed by a continuous infusion
PREVIOUS
Question: 2 of 170
A researcher is studying the effect of a novel drug that inhibits the Na+/K+-ATPase
pump in cardiac myocytes. Which of the following changes in intracellular ion
concentrations and subsequent cellular effects is most likely to result from this
inhibition?
Increased intracellular Na+ leading to increased Ca2+ efflux via the Na+/Ca2+ exchanger,
causing negative inotropy
Increased intracellular Na+ leading to decreased Ca2+ efflux via the Na+/Ca2+ exchanger,
causing positive inotropy
Decreased intracellular Na+ leading to increased Ca2+ influx via the Na+/Ca2+ exchanger,
causing positive inotropy
Increased intracellular K+ leading to membrane hyperpolarization and decreased contractility
PREVIOUS
Page 2
,ati. WGU D115 OA ( AXC2 ) LATEST ACTUAL EXAM - 170 Questions and Answers
Already Graded A+ Premium Exam Tested And Verified
Question: 3 of 170
A 65-year-old patient with hypertension and type 2 diabetes mellitus is initiated on
hydrochlorothiazide 25 mg daily. Three months later, laboratory results show: serum
sodium 138 mEq/L, potassium 3.2 mEq/L, chloride 100 mEq/L, bicarbonate 30 mEq/L,
blood urea nitrogen 22 mg/dL, creatinine 1.1 mg/dL, and fasting glucose 140 mg/dL.
Thiazide-induced metabolic acidosis due to decreased renal excretion of hydrogen ions
Thiazide-induced hypokalemia leading to metabolic alkalosis via increased renal ammonia
production
Thiazide-induced hyperglycemia due to decreased insulin secretion from pancreatic beta cells
Thiazide-induced hyponatremia due to impaired urinary dilution
PREVIOUS
Question: 4 of 170
A patient with a history of recurrent urinary tract infections is prescribed
trimethoprim-sulfamethoxazole (TMP-SMX). The patient also takes warfarin for atrial
fibrillation. Which of the following best describes the potential drug interaction and its
mechanism?
TMP-SMX increases warfarin metabolism via CYP2C9 induction, reducing anticoagulant effect
TMP-SMX displaces warfarin from albumin binding sites, leading to increased free warfarin and
risk of bleeding
TMP-SMX inhibits warfarin metabolism via CYP2C9 inhibition, potentiating anticoagulant effect
TMP-SMX decreases gastrointestinal absorption of warfarin, reducing its efficacy
PREVIOUS
Page 3
, ati. WGU D115 OA ( AXC2 ) LATEST ACTUAL EXAM - 170 Questions and Answers
Already Graded A+ Premium Exam Tested And Verified
Question: 5 of 170
A previously healthy adult presents with acute onset of severe right lower quadrant
abdominal pain, nausea, and low-grade fever. Laboratory studies show leukocytosis
with left shift. Computed tomography reveals a dilated appendix with wall thickening
and periappendiceal fat stranding. The patient is taken for laparoscopic
Ischemic necrosis of the appendix due to thrombosis of the appendicular artery
Obstruction of the appendiceal lumen by a fecalith, leading to increased intraluminal pressure
and bacterial overgrowth
Direct bacterial invasion of the appendiceal wall from the cecal lumen
Inflammatory bowel disease causing transmural inflammation of the appendix
PREVIOUS
Question: 6 of 170
A patient with end-stage renal disease on hemodialysis develops hyperphosphatemia.
Which of the following combinations of medications is most appropriate to manage
this condition while minimizing the risk of vascular calcification?
Calcium carbonate and calcitriol
Sevelamer carbonate and cinacalcet
Aluminum hydroxide and vitamin D
Lanthanum carbonate and paricalcitol
PREVIOUS
Page 4
