MCQs

11162 questions found

Practice Questions

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

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

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

171. A patient with adrenal insufficiency (Addison’s disease) develops hyperkalemia. What is the technical primary pathophysiological reason for this?

A. Excess cortisol.
B. Aldosterone deficiency, leading to impaired renal potassium excretion.
C. Increased potassium intake.
D. Decreased renin.
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

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

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

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

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
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

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

162. A patient with an esophageal stricture (narrowing) due to chronic GERD develops dysphagia. What is the technical primary pathophysiological cause of dysphagia?

A. Impaired gastric emptying.
B. Fibrosis and scarring of the esophageal wall.
C. Acute inflammation.
D. Muscle spasm.
nmdcat.online BS Nursing
Jun 6, 2026

161. A patient with heart failure experiences activation of the Renin-Angiotensin-Aldosterone System (RAAS). What is the technical pathophysiological consequence of RAAS activation in heart failure?

A. Vasodilation and decreased fluid retention.
B. Vasoconstriction, sodium and water retention, and cardiac remodeling, leading to worsening heart failure.
C. Improved cardiac contractility.
D. Decreased afterload.
nmdcat.online BS Nursing
Jun 6, 2026

160. A patient with acute kidney injury develops severe acidosis. What is the urgent clinical medicinal intervention required?

A. Oral antacids.
B. Administration of bicarbonate (if severe) and addressing the underlying cause of AKI.
C. Hyperventilation.
D. Loop diuretics.
nmdcat.online BS Nursing
Jun 6, 2026

159. A patient with Type 2 Diabetes Mellitus develops diabetic retinopathy. What is the technical primary pathophysiological mechanism?

A. Acute inflammation of the retina.
B. Microvascular damage and abnormal blood vessel growth in the retina due to chronic hyperglycemia.
C. Optic nerve damage.
D. Increased intraocular pressure.
nmdcat.online BS Nursing
Jun 6, 2026

158. A patient with HIV/AIDS develops Pneumocystis pneumonia. What is the technical primary pathophysiological reason for this opportunistic infection?

A. Normal immune function.
B. Severe immunosuppression due to CD4+ T cell depletion.
C. Hyperactive immune response.
D. Autoimmune disease.
nmdcat.online BS Nursing
Jun 6, 2026

157. A patient with a stroke is experiencing cerebral edema. What is the technical primary pathophysiological consequence of cerebral edema?

A. Decreased intracranial pressure.
B. Increased intracranial pressure (ICP), leading to brain herniation and neurological deterioration.
C. Improved cerebral blood flow.
D. Enhanced neurotransmission.
nmdcat.online BS Nursing
Jun 6, 2026

156. A patient with severe pancreatitis develops pancreatic necrosis and infection. What is the critical clinical urgency in managing this complication?

A. Oral antibiotics.
B. Surgical debridement of necrotic tissue and broad-spectrum antibiotics to prevent sepsis.
C. Pain management only.
D. Observation.
nmdcat.online BS Nursing
Jun 6, 2026
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