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Pathophysiology-II

197 questions found

Practice Questions

187. A patient with uncompensated respiratory alkalosis experiences lightheadedness and tingling around the mouth. What is the technical pathophysiological reason for these symptoms?

A. Increased cerebral blood flow.
B. Cerebral vasoconstriction due to decreased PCO2? and decreased ionized calcium.
C. Decreased oxygen levels.
D. Increased heart rate.
nmdcat.online BS Nursing
Jun 6, 2026

172. A patient with severe pneumonia and hypoxemia is placed on mechanical ventilation. What is the technical primary pathophysiological goal of mechanical ventilation in this context?

A. To increase spontaneous breathing.
B. To improve alveolar ventilation and oxygenation, and reduce the work of breathing.
C. To cause bronchoconstriction.
D. To prevent fluid accumulation.
nmdcat.online BS Nursing
Jun 6, 2026

188. A patient with a history of intravenous drug use develops infective endocarditis. What is the critical clinical concern in identifying the technical primary pathophysiological mechanism?

A. Peripheral neuropathy.
B. Bacterial colonization and vegetation on heart valves, potentially leading to septic emboli and systemic infection.
C. Autoimmune response.
D. Valvular calcification.
nmdcat.online BS Nursing
Jun 6, 2026

173. A patient with a history of recurrent urinary tract infections (UTIs) presents with fever, chills, and flank pain. What is the critical clinical concern in recognizing these symptoms?

A. Lower UTI.
B. Pyelonephritis (upper UTI), requiring urgent antibiotic treatment to prevent kidney damage and sepsis.
C. Viral infection.
D. Kidney stone.
nmdcat.online BS Nursing
Jun 6, 2026

189. A patient with an ischemic stroke is experiencing increasing neurological deficits due to cerebral edema. What is the urgent clinical medicinal intervention required?

A. Oral fluids.
B. Administration of hyperosmolar agents (e.g., mannitol) or hypertonic saline to reduce cerebral edema.
C. Oral antibiotics.
D. Only observation.
nmdcat.online BS Nursing
Jun 6, 2026

174. A patient with an acute allergic reaction (anaphylaxis) is administered epinephrine. From a medicinal perspective, what is the technical primary pathophysiological mechanism of epinephrine in anaphylaxis?

A. Antihistamine effect.
B. Vasoconstriction, bronchodilation, and decreased mediator release from mast cells.
C. Corticosteroid effect.
D. Direct mast cell stabilization.
nmdcat.online BS Nursing
Jun 6, 2026

190. A patient with chronic heart failure has an S4 gallop. What is the technical primary pathophysiological meaning of this heart sound?

A. Rapid ventricular filling in a dilated ventricle.
B. Atrial contraction against a stiff, non-compliant ventricle.
C. Valvular regurgitation.
D. Pericardial friction rub.
nmdcat.online BS Nursing
Jun 6, 2026

175. A patient with chronic obstructive pulmonary disease (COPD) develops peripheral edema and jugular venous distension. What is the technical primary pathophysiological cause of these signs in COPD?

A. Left-sided heart failure.
B. Cor pulmonale (right-sided heart failure due to pulmonary hypertension).
C. Renal failure.
D. Liver cirrhosis.
nmdcat.online BS Nursing
Jun 6, 2026

176. A patient with a peptic ulcer is prescribed a proton pump inhibitor (PPI). From a medicinal perspective, what is the technical pathophysiological mechanism of PPIs?

A. Neutralizes gastric acid.
B. Irreversibly blocks the H+/K+-ATPase pump in gastric parietal cells, reducing acid secretion.
C. Forms a protective barrier over the ulcer.
D. Increases mucus production.
nmdcat.online BS Nursing
Jun 6, 2026

177. A patient with acute kidney injury is diagnosed with pre-renal AKI. What is the critical clinical urgency in managing this condition?

A. To immediately start dialysis.
B. To identify and urgently correct the underlying cause of hypoperfusion (e.g., fluid resuscitation, improving cardiac output).
C. To administer loop diuretics.
D. To prescribe antibiotics.
nmdcat.online BS Nursing
Jun 6, 2026

178. A patient with a history of valvular heart disease develops acute onset of shortness of breath and an S3 gallop. What is the critical clinical urgency in identifying the cause of this acute decompensation?

A. To rule out pneumonia.
B. To identify acute exacerbation of heart failure, often due to valvular dysfunction, requiring urgent medical management.
C. To assess for DVT.
D. To evaluate for allergic reaction.
nmdcat.online BS Nursing
Jun 6, 2026

163. A patient with a history of hypertension experiences sudden, severe chest pain radiating to the back, accompanied by unequal pulses. What is the critical clinical urgency in identifying this condition?

A. Myocardial infarction.
B. Pneumothorax.
C. Aortic dissection, requiring urgent surgical consultation and blood pressure control.
D. Pulmonary embolism.
nmdcat.online BS Nursing
Jun 6, 2026

164. A patient with osteoporosis experiences a pathological fracture. What is the technical primary pathophysiological defect in osteoporosis?

A. Increased bone density.
B. Reduced bone density and structural integrity, leading to increased fracture risk.
C. Increased bone formation.
D. Normal bone remodeling.
nmdcat.online BS Nursing
Jun 6, 2026
nmdcat.online BS Nursing
Jun 6, 2026

166. A patient with uncompensated metabolic acidosis develops Kussmaul respirations (deep, rapid breathing). What is the technical pathophysiological rationale for this compensatory mechanism?

A. To retain CO2?.
B. To increase CO2? excretion to compensate for the metabolic acidosis.
C. To increase oxygen intake.
D. To decrease respiratory rate.
nmdcat.online BS Nursing
Jun 6, 2026

167. A patient with septic shock is given intravenous fluids and vasopressors. From a medicinal perspective, what is the technical pathophysiological rationale for vasopressors in septic shock?

A. To reduce heart rate.
B. To increase systemic vascular resistance and blood pressure to improve tissue perfusion.
C. To decrease cardiac output.
D. To increase urine output.
nmdcat.online BS Nursing
Jun 6, 2026

168. A patient with Type 2 Diabetes Mellitus develops peripheral neuropathy. What is the technical primary pathophysiological mechanism?

A. Acute inflammation of nerve endings.
B. Damage to nerve fibers due to chronic hyperglycemia and microvascular complications.
C. Demyelination due to autoimmune attack.
D. Compression of spinal nerves.
nmdcat.online BS Nursing
Jun 6, 2026

169. A patient with chronic heart failure has developed an S3 gallop. What is the technical primary pathophysiological meaning of this heart sound?

A. Atrial contraction against a stiff ventricle.
B. Rapid ventricular filling in a dilated and failing ventricle.
C. Valvular stenosis.
D. Pericardial friction rub.
nmdcat.online BS Nursing
Jun 6, 2026

170. A patient with acute onset of severe generalized abdominal pain, distension, and absence of bowel sounds, with a history of recent abdominal surgery, is suspected of having a paralytic ileus. What is the critical clinical urgency in managing this condition?

A. Immediate surgery.
B. Conservative management with NPO, IV fluids, and nasogastric tube until bowel function returns.
C. Oral laxatives.
D. Administration of opioids only.
nmdcat.online BS Nursing
Jun 6, 2026
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