NR 283: Pathophysiology Core Assessment Midterm Comprehensive Review Complete Certification Prep: Essential Study Materials, Updated Test Bank, and Targeted Review Questions

A client with diabetes reports occasionally experiencing a distinctive smell immediately before a seizure. Which action would most effectively reduce the client’s risk of seizure-related injury? A. Ignore the sensation because it is unrelated to seizure activity B. Treat the sensation as a warning and move to a safe position C. Immediately begin vigorous physical activity D. Restrict fluid intake until the sensation resolves Correct Answer: B. Treat the sensation as a warning and move to a safe position Rationale: A distinctive sensory experience immediately before a seizure may represent an aura. The client should recognize it as a warning, move away from hazards, sit or lie down, and alert another person. Ignoring the aura may increase the risk of injury. Vigorous activity and fluid restriction do not prevent seizures and may create additional safety risks. Question 2 A hospitalized client with no history of epilepsy suddenly develops a generalized seizure. Which finding would most strongly support classification as an acute symptomatic seizure? A. A family history of epilepsy B. A serum sodium level of 116 mEq/L C. A history of occasional tension headaches D. A normal magnetic resonance imaging result Correct Answer: B. A serum sodium level of 116 mEq/L Rationale: Severe hyponatremia can disrupt neuronal electrical activity and trigger a seizure. Acute symptomatic seizures occur in close association with conditions such as electrolyte abnormalities, hypoglycemia, head trauma, intoxication, or withdrawal. A family history may indicate susceptibility to epilepsy, while headaches and normal imaging do not establish an immediate reversible cause. Question 3 A client has continued convulsive activity for more than five minutes without regaining consciousness. Which interpretation and intervention are most appropriate? A. Postictal confusion; allow the client to sleep without interruption B. Status epilepticus; initiate emergency seizure management C. Focal seizure; ask the client to describe the aura D. Psychogenic episode; delay medication until diagnostic testing is completed Correct Answer: B. Status epilepticus; initiate emergency seizure management Rationale: Continuous seizure activity lasting five minutes or recurrent seizures without recovery should be treated as status epilepticus. This is a medical emergency because prolonged neuronal activity can cause hypoxia, acidosis, brain injury, and death. Airway support and rapid administration of prescribed benzodiazepines are priorities. Observation alone would dangerously delay treatment. Question 4 Which assessment finding most clearly distinguishes a generalized seizure from a focal seizure? A. The seizure may be preceded by an unusual sensation B. Abnormal electrical activity involves both cerebral hemispheres C. The client may experience involuntary muscle movement D. The event may be followed by temporary fatigue Correct Answer: B. Abnormal electrical activity involves both cerebral hemispheres Rationale: Generalized seizures begin in networks involving both cerebral hemispheres and commonly cause loss of consciousness and whole-body manifestations. Focal seizures begin in a limited brain region and may or may not impair awareness. Auras, muscle movements, and post-event fatigue can occur with more than one seizure type and therefore do not reliably distinguish them. Question 5 A client reports irritability several hours before a seizure, followed immediately before the event by smelling smoke that is not present. After rhythmic jerking, the client becomes sleepy and confused. Which sequence correctly identifies these stages? A. Aura, prodromal, tonic-clonic, recovery B. Prodromal, aura, tonic-clonic, postictal C. Postictal, aura, prodromal, tonic-clonic D. Prodromal, tonic-clonic, aura, postictal Correct Answer: B. Prodromal, aura, tonic-clonic, postictal Rationale: The prodromal stage may involve vague mood or behavioral changes hours before a seizure. An aura is a specific sensory or perceptual warning that occurs immediately before seizure activity. The tonic-clonic phase involves stiffening and rhythmic movements, while the postictal phase commonly includes fatigue, confusion, headache, and temporarily reduced responsiveness. Question 6 A client has recurrent episodes suspected to be seizures, but a routine electroencephalogram is normal. Which explanation is most accurate? A. A normal electroencephalogram permanently excludes epilepsy B. Electroencephalography detects abnormalities only when the client is unconscious C. Seizure-related electrical activity may not occur during the recording D. Electroencephalography is used primarily to evaluate coronary perfusion Correct Answer: C. Seizure-related electrical activity may not occur during the recording Rationale: An electroencephalogram records electrical activity present during the testing period. A routine recording may be normal if abnormal activity does not occur at that time. Therefore, a normal result does not completely exclude epilepsy. Prolonged or video electroencephalographic monitoring may be required. The test evaluates brain activity rather than coronary circulation. Question 7 A client begins having a tonic-clonic seizure while sitting in a chair. Which action should the nurse take first? A. Insert a padded object between the client’s teeth B. Restrain the client’s arms and legs C. Lower the client safely to the floor and protect the head D. Offer water immediately after the jerking begins Correct Answer: C. Lower the client safely to the floor and protect the head Rationale: The immediate priority is preventing injury while maintaining the airway. The client should be lowered safely to the floor, nearby hazards should be removed, and the head should be protected. Nothing should be placed in the mouth because it may damage the teeth or obstruct the airway. Restraints can cause injury, and oral fluids create an aspiration risk. Question 8 After tissue injury, which group of substances contributes directly to activation and sensitization of pain receptors? A. Insulin, glucagon, and glycogen B. Bradykinin, histamine, and prostaglandins C. Albumin, fibrinogen, and hemoglobin D. Sodium, bicarbonate, and phosphate Correct Answer: B. Bradykinin, histamine, and prostaglandins Rationale: Tissue injury stimulates the release of inflammatory mediators, including bradykinin, histamine, and prostaglandins. These substances activate or sensitize nociceptors and contribute to pain, swelling, and inflammation. The other substances have important metabolic, transport, clotting, or electrolyte functions but are not the primary inflammatory mediators responsible for injury-related pain. Question 9 Which client description is most consistent with chronic rather than acute pain? A. “The pain began suddenly after I cut my hand.” B. “The pain is sharp and located directly over the incision.” C. “I have had a widespread aching sensation for several months.” D. “The pain disappears as soon as the injured tissue is treated.” Correct Answer: C. “I have had a widespread aching sensation for several months.” Rationale: Chronic pain persists beyond the expected period of tissue healing and is often described as aching, throbbing, diffuse, or difficult to localize. Acute pain usually has a sudden onset, is associated with a specific injury or illness, and improves as healing occurs. Sharp, clearly localized pain is therefore more characteristic of acute pain. Question 10 A client with peripheral arterial disease reports burning and aching calf pain during walking that improves with rest. Which mechanism best explains the pain? A. Excessive blood flow stretches the arterial wall B. Reduced perfusion causes tissue ischemia during activity C. Increased venous return produces nerve compression D. Destruction of red blood cells increases tissue oxygenation Correct Answer: B. Reduced perfusion causes tissue ischemia during activity Rationale: Physical activity increases the muscles’ oxygen requirements. When narrowed arteries cannot provide sufficient blood flow, tissue ischemia develops and produces aching, burning, or cramping pain. Rest decreases oxygen demand and relieves the symptoms. Excessive blood flow and increased oxygenation do not cause ischemic pain, while venous return is not the primary mechanism of arterial claudication.