RASMUSSEN MDC 2 – EXAM 2 | RASMUSSEN
COLLEGE | EXAM QUESTIONS WITH VERIFIED
CORRECT ANSWERS
RASMUSSEN MDC 2 – EXAM 2 (MOST TESTED & DIFFICULT)
Format: Long, scenario-based, select-best-answer
Difficulty: 5 stars (Exam-Level)
Total Questions: 25
Core Topics Covered (Typical Rasmussen MDC 2 Exam 2)
• Vital signs & abnormalities
• Infection control & isolation
• Patient safety & mobility
• Specimen collection
• Oxygen therapy
• Nutrition & elimination
• Skin integrity & wound care
• Communication & documentation
• Ethical & legal principles
RASMUSSEN MDC 2 – EXAM 2: QUESTIONS 1–20
,1. Question:
A patient with chronic heart failure presents with fatigue, dyspnea on exertion, and lower extremity
edema. Explain the pathophysiology of left-sided versus right-sided heart failure and the expected
clinical manifestations of each.
- answer-:
• Left-sided HF: Impaired left ventricular contraction → blood backs up into lungs → pulmonary
congestion → dyspnea, orthopnea, pulmonary edema.
• Right-sided HF: Impaired right ventricular contraction → blood backs up into systemic venous
circulation → peripheral edema, hepatomegaly, ascites.
Explanation: The side of heart failure determines the location of fluid accumulation; left →
lungs, right → systemic tissues.
2. Question:
Describe the mechanism of action, therapeutic use, and major adverse effects of loop diuretics in the
management of heart failure.
- answer-:
• Mechanism: Inhibit Na⁺/K⁺/2Cl⁻ symporter in thick ascending loop → increased Na⁺, K⁺, water
excretion.
• Therapeutic use: Pulmonary edema, peripheral edema, hypertension.
• Adverse effects: Hypokalemia, hyponatremia, dehydration, ototoxicity.
Explanation: Loop diuretics are potent and used for rapid fluid removal; monitoring electrolytes is
essential to prevent complications.
3. Question:
A patient with type 2 diabetes has a blood glucose of 320 mg/dL and serum ketones present. Explain the
difference between diabetic ketoacidosis (DKA) and hyperosmolar hyperglycemic state (HHS) in terms
of pathophysiology, patient population, and laboratory findings.
- answer-:
• DKA: Type 1 diabetes, insulin deficiency → lipolysis → ketone production → metabolic acidosis.
Labs: glucose 250–600 mg/dL, low pH, ketones +.
• HHS: Type 2 diabetes, relative insulin deficiency → severe hyperglycemia → osmotic diuresis, no
significant ketosis. Labs: glucose >600 mg/dL, pH normal, ketones absent.
Explanation: Both are hyperglycemic emergencies, but DKA involves ketoacidosis, while HHS involves
extreme dehydration without significant ketosis.
,4. Question:
Explain the mechanism of action and nursing considerations for administering digoxin in patients with
heart failure.
- answer-:
• Mechanism: Inhibits Na⁺/K⁺ ATPase → ↑ intracellular Ca²⁺ → ↑ myocardial contractility.
• Nursing considerations: Monitor HR (hold if <60 bpm), monitor K⁺ (hypokalemia ↑ toxicity risk),
watch for signs of digoxin toxicity (nausea, visual changes).
Explanation: Digoxin improves cardiac output but has a narrow therapeutic window; careful monitoring
prevents adverse effects.
5. Question:
A patient with chronic kidney disease (CKD) develops hyperkalemia. Explain the pathophysiology of
hyperkalemia in CKD and its effect on cardiac conduction.
- answer-:
• Impaired renal excretion → K⁺ accumulates → resting membrane potential less negative →
easier depolarization → arrhythmias.
• ECG changes: peaked T-waves, widened QRS, potential ventricular fibrillation.
Explanation: Hyperkalemia is life-threatening; rapid recognition and treatment are critical to prevent
fatal arrhythmias.
6. Question:
Discuss the pathophysiology of atherosclerosis and how it contributes to coronary artery disease.
Include the roles of endothelial injury, lipid accumulation, and inflammation.
- answer-:
• Endothelial injury → LDL infiltration → oxidation → macrophage uptake → foam cells → fatty
streaks.
• Chronic inflammation → fibrous plaque → arterial narrowing → reduced blood flow → ischemia,
angina, MI.
Explanation: Atherosclerosis is a progressive disease; risk factors (HTN, diabetes, smoking) accelerate
plaque formation and cardiovascular events.
7. Question:
Explain the renin-angiotensin-aldosterone system (RAAS) in blood pressure regulation and the
pharmacologic targets used in hypertension management.
, - answer-:
• Low BP → kidney releases renin → converts angiotensinogen → angiotensin I → ACE →
angiotensin II → vasoconstriction + aldosterone release → Na⁺ and water retention → ↑ BP.
• Pharmacologic targets: ACE inhibitors, ARBs, renin inhibitors, aldosterone antagonists.
Explanation: RAAS dysregulation contributes to hypertension and heart failure; blocking it reduces BP
and cardiac workload.
8. Question:
A patient presents with shortness of breath, wheezing, and cough after exposure to an allergen.
Describe the pathophysiology of asthma and the role of bronchoconstriction, inflammation, and airway
remodeling.
- answer-:
• Allergen triggers IgE-mediated response → mast cell degranulation → histamine, leukotrienes →
bronchoconstriction, mucosal edema.
• Chronic inflammation → airway hyperresponsiveness and remodeling → persistent airflow
limitation.
Explanation: Understanding underlying mechanisms guides treatment: bronchodilators for acute
symptoms, corticosteroids for inflammation control.
9. Question:
Explain the mechanism of action, indications, and side effects of short-acting beta-2 agonists (SABAs) in
asthma management.
- answer-:
• Mechanism: Stimulate beta-2 receptors → bronchodilation → relax airway smooth muscle.
• Indications: Acute asthma attacks, exercise-induced bronchospasm.
• Side effects: Tachycardia, tremors, hypokalemia.
Explanation: SABAs provide rapid relief but do not control underlying inflammation; overuse can lead to
tolerance.
10. Question:
Describe the difference between type 1 and type 2 diabetes mellitus in terms of pathophysiology,
insulin production, and treatment strategies.
- answer-:
COLLEGE | EXAM QUESTIONS WITH VERIFIED
CORRECT ANSWERS
RASMUSSEN MDC 2 – EXAM 2 (MOST TESTED & DIFFICULT)
Format: Long, scenario-based, select-best-answer
Difficulty: 5 stars (Exam-Level)
Total Questions: 25
Core Topics Covered (Typical Rasmussen MDC 2 Exam 2)
• Vital signs & abnormalities
• Infection control & isolation
• Patient safety & mobility
• Specimen collection
• Oxygen therapy
• Nutrition & elimination
• Skin integrity & wound care
• Communication & documentation
• Ethical & legal principles
RASMUSSEN MDC 2 – EXAM 2: QUESTIONS 1–20
,1. Question:
A patient with chronic heart failure presents with fatigue, dyspnea on exertion, and lower extremity
edema. Explain the pathophysiology of left-sided versus right-sided heart failure and the expected
clinical manifestations of each.
- answer-:
• Left-sided HF: Impaired left ventricular contraction → blood backs up into lungs → pulmonary
congestion → dyspnea, orthopnea, pulmonary edema.
• Right-sided HF: Impaired right ventricular contraction → blood backs up into systemic venous
circulation → peripheral edema, hepatomegaly, ascites.
Explanation: The side of heart failure determines the location of fluid accumulation; left →
lungs, right → systemic tissues.
2. Question:
Describe the mechanism of action, therapeutic use, and major adverse effects of loop diuretics in the
management of heart failure.
- answer-:
• Mechanism: Inhibit Na⁺/K⁺/2Cl⁻ symporter in thick ascending loop → increased Na⁺, K⁺, water
excretion.
• Therapeutic use: Pulmonary edema, peripheral edema, hypertension.
• Adverse effects: Hypokalemia, hyponatremia, dehydration, ototoxicity.
Explanation: Loop diuretics are potent and used for rapid fluid removal; monitoring electrolytes is
essential to prevent complications.
3. Question:
A patient with type 2 diabetes has a blood glucose of 320 mg/dL and serum ketones present. Explain the
difference between diabetic ketoacidosis (DKA) and hyperosmolar hyperglycemic state (HHS) in terms
of pathophysiology, patient population, and laboratory findings.
- answer-:
• DKA: Type 1 diabetes, insulin deficiency → lipolysis → ketone production → metabolic acidosis.
Labs: glucose 250–600 mg/dL, low pH, ketones +.
• HHS: Type 2 diabetes, relative insulin deficiency → severe hyperglycemia → osmotic diuresis, no
significant ketosis. Labs: glucose >600 mg/dL, pH normal, ketones absent.
Explanation: Both are hyperglycemic emergencies, but DKA involves ketoacidosis, while HHS involves
extreme dehydration without significant ketosis.
,4. Question:
Explain the mechanism of action and nursing considerations for administering digoxin in patients with
heart failure.
- answer-:
• Mechanism: Inhibits Na⁺/K⁺ ATPase → ↑ intracellular Ca²⁺ → ↑ myocardial contractility.
• Nursing considerations: Monitor HR (hold if <60 bpm), monitor K⁺ (hypokalemia ↑ toxicity risk),
watch for signs of digoxin toxicity (nausea, visual changes).
Explanation: Digoxin improves cardiac output but has a narrow therapeutic window; careful monitoring
prevents adverse effects.
5. Question:
A patient with chronic kidney disease (CKD) develops hyperkalemia. Explain the pathophysiology of
hyperkalemia in CKD and its effect on cardiac conduction.
- answer-:
• Impaired renal excretion → K⁺ accumulates → resting membrane potential less negative →
easier depolarization → arrhythmias.
• ECG changes: peaked T-waves, widened QRS, potential ventricular fibrillation.
Explanation: Hyperkalemia is life-threatening; rapid recognition and treatment are critical to prevent
fatal arrhythmias.
6. Question:
Discuss the pathophysiology of atherosclerosis and how it contributes to coronary artery disease.
Include the roles of endothelial injury, lipid accumulation, and inflammation.
- answer-:
• Endothelial injury → LDL infiltration → oxidation → macrophage uptake → foam cells → fatty
streaks.
• Chronic inflammation → fibrous plaque → arterial narrowing → reduced blood flow → ischemia,
angina, MI.
Explanation: Atherosclerosis is a progressive disease; risk factors (HTN, diabetes, smoking) accelerate
plaque formation and cardiovascular events.
7. Question:
Explain the renin-angiotensin-aldosterone system (RAAS) in blood pressure regulation and the
pharmacologic targets used in hypertension management.
, - answer-:
• Low BP → kidney releases renin → converts angiotensinogen → angiotensin I → ACE →
angiotensin II → vasoconstriction + aldosterone release → Na⁺ and water retention → ↑ BP.
• Pharmacologic targets: ACE inhibitors, ARBs, renin inhibitors, aldosterone antagonists.
Explanation: RAAS dysregulation contributes to hypertension and heart failure; blocking it reduces BP
and cardiac workload.
8. Question:
A patient presents with shortness of breath, wheezing, and cough after exposure to an allergen.
Describe the pathophysiology of asthma and the role of bronchoconstriction, inflammation, and airway
remodeling.
- answer-:
• Allergen triggers IgE-mediated response → mast cell degranulation → histamine, leukotrienes →
bronchoconstriction, mucosal edema.
• Chronic inflammation → airway hyperresponsiveness and remodeling → persistent airflow
limitation.
Explanation: Understanding underlying mechanisms guides treatment: bronchodilators for acute
symptoms, corticosteroids for inflammation control.
9. Question:
Explain the mechanism of action, indications, and side effects of short-acting beta-2 agonists (SABAs) in
asthma management.
- answer-:
• Mechanism: Stimulate beta-2 receptors → bronchodilation → relax airway smooth muscle.
• Indications: Acute asthma attacks, exercise-induced bronchospasm.
• Side effects: Tachycardia, tremors, hypokalemia.
Explanation: SABAs provide rapid relief but do not control underlying inflammation; overuse can lead to
tolerance.
10. Question:
Describe the difference between type 1 and type 2 diabetes mellitus in terms of pathophysiology,
insulin production, and treatment strategies.
- answer-:
